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data sheet rev. 1.00 / april 2012 zspm 4121 under - voltage load switch for smart battery management
ZSPM4121 under - voltage load switch for smart battery management ? 201 2 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material c o ntained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the c opyright owner. the information furnished in t his publication is subject to changes without notice. brief description the ZSPM4121 battery management load switch can be used to protect a battery from excessive discharge. it actively switches the battery power source off if it drops to a set threshold (off mode) . when the input battery voltage is above the threshold, the load switch is on (on mode) . the ZSPM4121 threshold voltage (v thresh ) is pro - grammed at manufacturing to a set point in the range of 1.2v to 4.2v with 100mv steps between options. when the input battery voltage has been switched off by the ZSPM4121, the quiescent cur rent draw on the battery is in the order of 100pa (typical). the quiescent current in the on state is as low as 70na. the zspm412 1 consists of an internally generated threshold voltage, a comparator with hysteresis, slew rate co ntrol for the load switch, a p - c hannel load switch, and an open - drain indicator pin . the 500mv hysteresis between the off mode and the on mode prevents intermittent operation. the ZSPM4121 also provides over - current protection. benefits ? best - in - class ultra - low quiescent current in o ff mode: 100pa (typical) ? ultra - low quiescent current in on mode: 70na (typical) ? accurate on/off voltage threshold ? low rds(on): 175m? (typical) @ 5v features ? power source is actively switched off when vcc drops below a set threshold (programmed at manufacturing) ? wide input voltage range: 1.2v to 5.5v ? threshold voltage options of 1.2v to 4.2v in 100mv steps (factory programmed) ? supervisory over - current limit shutdown ? low drop out disconnect from v cc to loads ? controlled t urn - on slew rate ? 500mv off mode to o n mode hysteresis ? over current shutdown (3a) related zmdi smart power products ? zspm4141 ultra - low - power l inear regulator available support ? evaluation k it ? support documentation physical characteristics ? package: 8 - pin dfn ( 2mm x 2mm ) ZSPM4121 block diagram z s p m 4 1 2 1 g n d v o u t n p g v c c n o t e : a t m a n u f a c t u r i n g , v t h r e s h i s p r o g r a m m e d t o a c u s t o m e r - s e l e c t e d t h r e s h o l d v o l t a g e i n t h e r a n g e o f 1 . 2 v t o 4 . 2 v w i t h 1 0 0 m v s t e p s b e t w e e n o p t i o n s . r e g u l a t e d v t h r e s h
ZSPM4121 under - voltage load switch for smart battery management ? 201 2 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material c o ntained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the c opyright owner. typical applications ? portable batteries x industrial ? m edical ? smart cards ? rfid typical application circuits: ordering information ordering code * description package ZSPM4121ai1 w 17 ZSPM4121 under - voltage load switch v thresh factory set to 1.7v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 21 ZSPM4121 under - voltage load switch v thresh factory set to 2.1v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 23 ZSPM4121 under - voltage load switch v thresh factory set to 2.3v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 24 ZSPM4121 under - voltage load switch v thres h factory set to 2.4v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 25 ZSPM4121 under - voltage load switch v thresh factory set to 2.5v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 26 ZSPM4121 under - voltage load switch v thresh factory set to 2.6v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 28 ZSPM4121 under - voltage load switch v thresh factory set to 2.8v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 30 ZSPM4121 under - voltage load switch v thresh factory set to 3.0v 8 - pin dfn / 7 reel (2500) ZSPM4121kit ZSPM4121 evaluation kit * x = w for 7 reel with 2500 parts or r for 13 reel with 3300 . custom v thresh values are also available: 1.2v to 4.2v ( typical ) in 100mv increments. sales and further information www.zmdi.com analog@zmdi.com zentrum mikroelektronik dresden ag grenzstrasse 28 01109 dresden germany zmd america, inc. 1525 mccarthy blvd., #212 milpitas, ca 95035 - 7453 usa zentrum mikroelektronik dresden ag, japan office 2nd floor, shinbashi tokyu bldg. 4 - 21 - 3, shinbashi, minato - ku tokyo, 105 - 0004 japan zmd far east, ltd. 3f, no. 51, sec. 2, keelung road 11052 taipei taiwan zentrum mikroelektronik dresden ag, korean office posco centre building west tower, 11th floor 892 daechi, 4 - dong, kangnam - gu seoul, 135 - 777 korea phone +49 (0)351.8822 fax +49 (0)351.8822 phone + 855 - ask - zmdi ( + 855 . 275 . 9634) phone +81.3.6895.7410 fax +81.3.6895.7301 phone +886.2.2377.8189 fax +886.2.2377.8199 phone +82.2.559.0660 fax +82.2.559.0700 disclaimer : this information applies to a product under development. its characteristics and specifications are subject to change without notice. zentrum mikroelektronik dresden ag (zmd ag) assumes no obligation regarding future manufactur e unless otherwise agreed to in writing. the information furnished hereby is believed to be true and accurate. however, under no circumstances shall zmd ag be liable to any customer, licensee, or any other third party for any special, indirect, incide ntal, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. zmd ag hereby expressly d isclaims any liability of zmd ag to any customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of zmd ag for any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty , tort (including negligence), strict liability, or otherwise. c h a r g e r l o a d z s p m 4 1 2 1 g n d v o u t n p g v c c t y p i c a l a p p l i c a t i o n c i r c u i t f o r d i s c o n n e c t i n g t h e b a t t e r y c h a r g e r l o a d z s p m 4 1 2 1 g n d v o u t n p g v c c t y p i c a l a p p l i c a t i o n c i r c u i t f o r d i s c o n n e c t i n g t h e l o a d
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 4 of 17 contents 1 ZSPM4121 characteristics ................................ ................................ ................................ ................................ .. 6 1.1. absolute maximum ratings ................................ ................................ ................................ .......................... 6 1.2. thermal characteri stics ................................ ................................ ................................ ................................ 6 1.3. recommended operating conditions ................................ ................................ ................................ .......... 6 1.4. electrical characteristics ................................ ................................ ................................ .............................. 7 2 typical performance characteristics ................................ ................................ ................................ ................... 8 3 description of circuit ................................ ................................ ................................ ................................ ........... 9 4 application circuits ................................ ................................ ................................ ................................ ............ 10 4.1. typical application circuits ................................ ................................ ................................ ......................... 10 5 pin configuration and package ................................ ................................ ................................ ......................... 11 5.1. package dimensions and marking diagram ................................ ................................ .............................. 11 5.2. pin description for 8 - pin dfn (2x2 mm) ................................ ................................ ................................ .... 12 6 layout and soldering requirements ................................ ................................ ................................ ................. 13 6.1. recommended landing pattern for pcbs ................................ ................................ ................................ . 13 6.2. multi - layer pcb layout ................................ ................................ ................................ .............................. 14 6.3. single - layer pcb layout ................................ ................................ ................................ ........................... 15 7 ordering information ................................ ................................ ................................ ................................ .......... 16 8 related documents ................................ ................................ ................................ ................................ ........... 16 9 glossary ................................ ................................ ................................ ................................ ............................ 16 10 document revision history ................................ ................................ ................................ ............................... 17 list of figures figure 2.1 on mode / off mode characteristics ................................ ................................ ................................ ..... 8 figure 2.2 on mode switching behavior ................................ ................................ ................................ ................ 8 figure 2.3 on mode / off mode quiescent current i q ................................ ................................ ............................. 8 figure 2.4 off mode v thresh temperature performance ................................ ................................ ........................ 8 figure 2.5 on mode / off mode transition delay ................................ ................................ ................................ ... 9 figure 2.6 over - current retry performance ................................ ................................ ................................ ........... 9 figure 3.1 ZSPM4121 block diagram ................................ ................................ ................................ ..................... 9 figure 4.1 application circuit for disconnecting the battery ................................ ................................ ................. 10 figure 4.2 application circuit for disconnecting the load ................................ ................................ .................... 10 figure 5.1 ZSPM4121 package drawing ................................ ................................ ................................ .............. 11 figure 5.2 ZSPM4121 pin assignments (top view) ................................ ................................ .............................. 12 figure 6.1 recommended landing pattern for 8 - pin dfn ................................ ................................ ................... 13 figure 6.2 package and pcb land configuration for multi - layer pcb ................................ .............................. 14 figure 6.3 jedec standard fr4 multi - layer board C cross - secti onal view ................................ ...................... 14 figure 6.4 conducting heat away from the die using an exposed pad package ................................ ............... 15 figure 6.5 application using a single - layer pcb ................................ ................................ ................................ 15
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 5 of 17 list of tables table 1.1 absolute maximum ratings ................................ ................................ ................................ ................... 6 table 1.2 thermal c haracteristics for 8 - pin dfn (2mm x 2mm) package ................................ ........................... 6 table 1.3 recommended operating conditions ................................ ................................ ................................ .... 6 table 1.4 electrical characteristics ................................ ................................ ................................ ........................ 7 table 5.1: pin description, 8 - pin dfn (2x2) ................................ ................................ ................................ ............ 12
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 6 of 17 1 ZSPM4121 characteristics stresses beyond those listed under absolute maximum ratings (section 1.1 ) may cause permanent damage to the device. these are stress ratings only . f unctional operation of the device at these or any other conditions beyond those recommended under recommended opera ting conditions (section 1.3 ) is not implied. exposure to absolute C maximum conditions for extended periods may affect device reliability. 1.1. absolute maximum ratings over operating free C air temperature range unless otherwise noted . all voltage values are with respect to network ground terminal. table 1 . 1 absolute maximum ratings parameter symbol value unit maximum voltage applied to the vcc, vout,and npg pins - 0.3 to 6.0 v electrostatic discharge C human body model , according to the respective jesd22 jedec standard 2 kv operating junction temperature range t j - 20 to 85 ? c storage temperature range t stg - 65 to 150 ? c lead temperature (soldering, 10 seconds) 260 ? c 1.2. thermal characteristics table 1 . 2 thermal characteristics f o r 8 - p in dfn (2 mm x 2 mm ) package ? ja ( ? c/w) 1) ? jc ( ? c/w) 2) 73.1 10.7 1) this rating assumes a fr4 board only. 2) this rating assumes a 1oz. copper jedec standard board with thermal vias. see section 6.1 for more information. 1.3. recommended operating conditions table 1 . 3 recommended o perating c onditions parameter symbol min typ max unit unregulated supply input at vcc pin v cc 1.2 5.5 v operating ambient temperature 1) t a - 20 55 c operating junction temperature t j - 20 85 c 1) operating ambient temperature is only intended as a guideline. the operating junction temperature requirements must not be exceeded.
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 7 of 17 1.4. electrical characteristics electrical c haracteristics for v cc = 1 . 2v to 5.5 (unless otherwise noted) . minimum and maximu m c haracteristics are tested at t j = 25c. table 1 . 4 electrical c haracteristics parameter symbol condition min typ max unit input supply input supply voltage at vcc pin v cc 1.2 5.5 v quiescent c urrent: on mode i q - on v cc = 5v, n o l oad 70 150 na quiescent c urrent: off mode i q - off v cc < v thresh , n o l oad 100 pa load switch over - current shutdown i oc v cc = 5.0v 3 a over - current retry period t oc v cc = 5.0v 1.7 ms output switch leakage current i leak - sw v cc < v thresh ; v out g rounded 100 pa switch on - resistance rds - on v cc = 5.0v 175 m ? v cc = 3.3v 200 m ? v cc = 1.8v 350 m ? transition times transition d elay: on mode to off mode t d1 v off = 2.0v, v cc = 3.0v ? 1.5v 650 ? s transition d elay: off mode to on mode t d2 v off = 2.0v, v cc = 1.5v ? 3.0v 1.7 ms output t urn - on r ise t ime t on v cc = 2.5v, r load = 50 ? 200 s npg output output leakage i leak - n pg v cc = 5.0v, v n pg = 5.5v 100 na low - level output voltage v ol - n pg i n pg = 5 ma 0.4 v off thresholds off threshold v off v thresh = customer - selected threshold voltage in the range of 1.2v to 4.2 v with 100mv steps between options programmed at manufacturing 0.95 ? v thresh v thresh 1.05 ? v thresh v off mode to on mode hysteresis v hys rising transition: off mode to on mode 500 mv
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 8 of 17 2 typical performance characteristics t = 25 c (unless otherwise noted) figure 2 . 1 on mode / off mode characteristics figure 2 . 2 on mode switching behavior figure 2 . 3 on mode / off mode quiescent current i q figure 2 . 4 off mode v thresh temperature performance
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 9 of 17 figure 2 . 5 on mode / off mode transition delay figure 2 . 6 over - current retry performance 3 description of circuit the ZSPM4121 battery management load switch consists of an internally generated threshold voltage, comparator with hysteresis, slew rate control for the load switch, a p - c hannel load switch, and an open - drain indicator pin. when the input battery voltage is above the factory - configured threshold, the load switch is on (the on mode) . when the input battery voltage falls to the threshold voltage or below , the l oad s witch is off (the off mode), and the quiescent current draw on the battery is in the order of 100pa (typica l) . the ZSPM4121 threshold voltage is programmed at manufacturing to an option in the range of 1.2v to 4.2v with 100mv steps between options. the 500mv hysteresis between the off mode and the on mode prevents intermittent operation. the ZSPM4121 also provi des over - current protection. figure 3 . 1 zspm 4121 block diagram z s p m 4 1 2 1 g n d v o u t n p g v c c n o t e : a t m a n u f a c t u r i n g , v t h r e s h i s p r o g r a m m e d t o a c u s t o m e r - s e l e c t e d t h r e s h o l d v o l t a g e i n t h e r a n g e o f 1 . 2 v t o 4 . 2 v w i t h 1 0 0 m v s t e p s b e t w e e n o p t i o n s . r e g u l a t e d v t h r e s h
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 10 of 17 4 application circuits 4.1. typical application circuits note that when the ZSPM4121 is in off mode, the battery will continue to charge through the body diode between vout and vcc for the application shown in figure 4 . 1 . figure 4 . 1 application circuit for disconnecting the battery figure 4 . 2 application circuit for disconnecting the load c h a r g e r l o a d z s p m 4 1 2 1 g n d v o u t n p g v c c c h a r g e r l o a d z s p m 4 1 2 1 g n d v o u t n p g v c c
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 11 of 17 5 pin configuration and package 5.1. package dimensions and marking diagram figure 5 . 1 ZSPM4121 p ackage d rawing marking codes: z : zmdi p: product code v: voltage levels: 1 = 1.2v, 2 = 1.3v, 3 = 1.4v, 4 = 1.5v, 5 = 1.6v, 6 = 1.7v, 7 = 1.8v. 8 = 1.9v, 9 = 2.0v, a = 2.1 v, b = 2,2 v, c = 2.3 v, d = 2.4 v, e - v = 2.5v to 4.2v ym: date code (year, month)
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 12 of 17 5.2. pin description for 8 - pin dfn (2x2 mm ) figure 5 . 2 ZSPM4121 pin assignment s (top view) table 5 . 1 : pin d escription, 8 - pin dfn (2x2) pin # name function description 1 gnd ground gnd 2 v out o utput output to system load 3 nc no connection (connect to gnd or float) 4 nc no connection (connect to gnd or float) 5 nc no connection (connect to gnd or float) 6 vcc supply supply input (connect to pin 7 and vcc supply rail) 7 vcc supply supply input (connect to pin 6 and vcc supply rail) 8 n pg o utput open - drain n - channel output (low indicates power good) v o u t g n d n p g v c c n c n c n c v c c 1 2 3 4 8 7 6 5
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 13 of 17 6 layout and soldering requirements to maximize the efficiency of this package for application s on a single layer or multi - layer printed circuit board (pcb), certain guidelines must be followed when laying out this part on the pcb. 6.1. recommended landing pattern for pcb s figure 6 . 1 recommended landing pa ttern for 8 - pin dfn
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 14 of 17 6.2. multi - layer pcb layout the following are guidelines for mounting the exposed pad ZSPM4121 on a multi - layer pcb with ground a plane. in a multi - layer board application, the thermal vias are the primary method of heat transfer from the package thermal pad to the internal ground plane. the efficiency of this method depends on several factors, including die area, number of thermal vias, a nd thickness of copper, etc. figure 6 . 2 package and pcb land configuration for multi - layer pcb figure 6 . 3 jedec standard fr4 multi - layer board C cross - sectional view figure 6 . 4 is a representation of how the heat can be conducted away from the die using an exposed pad package. each application will have different requirements and limitations , and therefore the user should use sufficient copper to dissipate the power in the system. the output current rating for the linear regulators might need to be de - rated for ambient temperatures above 85 c. the de - rate d value will depend on calculated worst case power dissipation and the thermal management implementation in the application. package thermal pad solder pad ( land pattern ) thermal vias package outline ( square ) package solder pad package solder pad ( bottom trace ) thermal via component traces thermal isolation power plane only 1 . 5748 mm 0 . 0 - 0 . 071 mm board base & bottom pad 0 . 5246 - 0 . 5606 mm power plane ( 1 oz cu ) 1 . 0142 - 1 . 0502 mm ground plane ( 1 oz cu ) 1 . 5038 - 1 . 5748 mm component trace ( 2 oz cu ) 2 plane 4 plane
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 15 of 17 figure 6 . 4 conducting heat away from the die using an exposed pad package 6.3. single - layer pcb layout layout recommendation s for a single - layer pcb: u tilize as much copper area for power management as possible. in a single - layer board application , the thermal pad is attached to a heat spreader (copper areas) by using a low thermal impedance attachment method (sol der paste or thermal conductive epoxy). in both of the methods mentioned above , it is advisa ble to use as much copper trace as possible to dissipate the heat. figure 6 . 5 application using a single - layer pcb i mportant : i f the attachment method is not implemented correctly, the functionality of the product is not guaranteed. power dissipation capability will be adversely affected if the device is incorrectly mounted onto the circuit board. mold compound die epoxy die attach exposed pad solder thermal vias with cu plating single layer , 2 oz cu ground layer , 1 oz cu signal layer , 1 oz cu bottom layer , 2 oz cu 20 % cu coverage 90 % cu coverage 5 % - 10 % cu coverage note : not to scale . use as much copper area as possible for heat spread package thermal pad package outline
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 16 of 17 7 ordering information ordering code * description package ZSPM4121ai1 w 17 ZSPM4121 under - voltage load switch v thresh factory set to 1.7v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 21 ZSPM4121 under - voltage load switch v thresh factory set to 2.1v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 23 ZSPM4121 under - voltage load switch v thresh factory set to 2.3v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 24 ZSPM4121 under - voltage load switch v thresh factory set to 2.4v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 25 ZSPM4121 under - voltage load switch v thresh factory set to 2.5v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 26 ZSPM4121 under - voltage load switch v thresh factory set to 2.6v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 28 ZSPM4121 under - voltage load switch v thresh factory set to 2.8v 8 - pin dfn / 7 reel (2500) ZSPM4121ai1 w 30 ZSPM4121 under - voltage load switch v thresh factory se t to 3.0v 8 - pin dfn / 7 reel (2500) ZSPM4121kit ZSPM4121 evaluation kit * custom values are also available in the range of 1.2v - 4.2v ( typical ) in 100mv increments. 8 related documents document file name zspm 4121 feature s heet zspm 4121_feature _sheet_revx_xy.pdf ZSPM4121 evaluation kit description ZSPM4121_eval_kit_description_revx_xy.pdf zspm41 2 1 application note low power battery control and voltage regulator solutions for remote sensor networks ZSPM4121_app_note_lp - batt - contr - vreg - remote - sensor - net _ x_xy.pdf note: x_xy refers to the current revision of the document. visit zmdis website www.zmdi.com or contact your nearest sales office for the latest version of these documents. 9 glossary term description pg power good (npg = power good, active low) rfid radio frequency identification spm smart power management
ZSPM4121 under - voltage load switch for smart battery management data sheet april 3 0 , 2012 ? 2012 zentrum mikroelektronik dresden ag rev. 1.00 all rights reserved. the material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. the information furnished in this publication is subject to changes without notice. 17 of 17 10 document revision history revision date description 1.00 april 30 , 2012 first r elease sales and further information www.zmdi.com analog@zmdi.com zentrum mikroelektronik dresden ag grenzstrasse 28 01109 dresden germany zmd america, inc. 1525 mccarthy blvd., #212 milpitas, ca 95035 - 7453 usa zentrum mikroelektronik dresden ag, japan office 2nd floor, shinbashi tokyu bldg. 4 - 21 - 3, shinbashi, minato - ku tokyo, 105 - 0004 japan zmd far east, ltd. 3f, no. 51, sec. 2, keelung road 11052 taipei taiwan zentrum mikroelektronik dresden ag, korean office posco centre building west tower, 11th floor 892 daechi, 4 - dong, kangnam - gu seoul, 135 - 777 korea phone +49 (0)351.8822 fax +49 (0)351.8822 phone + 855 - ask - zmdi ( +855.275. 9634) phone +81.3.6895.7410 fax +81.3.6895.7301 phone +886.2.2377.8189 fax +886.2.2377.8199 phone +82.2.559.0660 fax +82.2.559.0700 disclaimer : this information applies to a product under development. its characteristics and specifications are subject to change without notice. zentrum mikroelektronik dresden ag (zmd ag) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. the information furnished hereby is believe d to be true and accurate. however, under no circumstances shall zmd ag be liable to any customer, licensee, or any other third par ty for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or in any way related to the furnishing, performance, or use of this technical data. zmd ag hereby expressly d isclaims any liability of zmd a g to any customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of zmd ag for an y damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty, tort (including negligence), strict liability, or otherwise.

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