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?2006 by catalyst semiconductor, inc. characteristics subject to change without notice 1 doc. no. 3004, rev. u features precision monitoring of +5.0 v ( 5%, 10%, 20%), +3.3 v ( 5%, 10%), +3.0 v ( 10%) and +2.5 v ( 5%) power supplies offered in two output configurations: - cat809: active low reset - cat810: active high reset direct replacements for the max809 and max810 in applications operating over the industrial temperature range reset valid down to v cc = 1.0 v 6 a power supply current power supply transient immunity available in sot-23 and sc70 packages with sn or nipdau green lead finish industrial temperature range: -40 c to +85 c applications computers servers laptops cable modems wireless communications embedded control systems white goods power meters intelligent instruments pdas and handheld equipment pin configuration cat809 (cat810) gnd reset (reset) v cc 3-lead sot23 3-lead sc70 1 2 3 threshold suffix selector nominal threshold threshold suffix voltage designation 4.63v l 4.38v m 4.00v j 3.08v t 2.93v s 2.63v r 2.32v z cat809, cat810 3-pin microprocessor power supply supervisors description the cat809 and cat810 are p supervisory circuits that monitor power supplies in digital systems. the cat809 and cat810 are direct replacements for the max809 and max810 in applications operating over the industrial temperature range. these devices generate a reset signal, which is asserted while the power supply voltage is below a preset threshold level and for at least 140 ms after the power supply level has risen above that level. the underlying floating gate technology, ae 2(tm) used by catalyst semiconductor, makes it possible to offer any custom reset threshold value. seven industry standard threshold levels are offered to support +5.0 v, +3.3 v, +3.0 v and +2.5 v systems. the cat809 features a reset push-pull output (active low) and the cat810 features a reset push-pull output (active high). fast transients on the power supply are ignored and the output is guaranteed to be in the correct state at v cc levels as low as 1.0 v. the cat809/810 are fully specified over the industrial temperature range (-40 c to 85 c) and are available in compact 3-pin sot23 and sc70 packages.
cat809, cat810 2 doc. no. 3004, rev. u ?2006 by catalyst semiconductor, inc. characteristics subject to change without notice ordering information top marking notes 1) the ?m?in the sot-23 package marking indicates the year and month of production and the ??in the sc70 package marking ind icates the assembly location. 2) all nipdau devices will be marked to indicate product type and package. threshold and full part numbers will be provided on b ox and reel labels as well as all shipping documents. prefix device # suffix 809 s tbi gt10 device type 809: push-pull / active low output 810: push-pull / active high output cat trip level l: 4.63v m: 4.38v j: 4.00v t: 3.08v s: 2.93v r: 2.63v z: 2.32v company id package type eur: sot-23 tbi: sot-23 green exr: sc70 sdi: sc70 green parts per reel t3: 3k units t10: 10k units gt3: 3k units (nipdau lead finish)* gt10: 10k units (nipdau lead finish)* the device shown in the examples (cat809stbi-gt10) has an active low, push-pull output; a trip level of 2.85v to 3.00v and is p rovided in the green sot-23 package with a nipdau lead finish on tape and reel with 10,000 units. * nipdau is a lead finish option on the green packages only. unless indicated with the g , green packages are shipped with a sn matte lead finish. d n a s t r a p d l o h s e r h t3 2 t o s ) 1 ( n e e r g 3 2 - t o s d a e l e t t a m n s h s i n i f ) 1 ( n e e r g 3 2 - t o s d a e l u a d p i n h s i n i f ) 2 ( ) 1 ( 0 7 c s ) 1 ( n s n e e r g 0 7 c s d a e l e t t a m h s i n i f ) 1 ( n e e r g 0 7 c s d a e l u a d p i n h s i s n i f ) 2 ( ) 1 ( l 9 0 8 t a cm y a am y b d m y r n _ a f_ a g _ r n m 9 0 8 t a cm y b am y c d_ b f_ b g j 9 0 8 t a cm y w cm y a c_ g f_ g g t 9 0 8 t a cm y c am y f d_ e f_ e g s 9 0 8 t a cm y d am y e d_ d f_ d g r 9 0 8 t a cm y f am y d d_ c f_ c g z 9 0 8 t a cm y f cdm y g_ f f_ f g l 0 1 8 t a cm y g am y k c m y s n _ h f_ h g _ s n m 0 1 8 t a cm y h am y l c_ j f_ j g j 0 1 8 t a cm y i am y j c_ p f_ p g t 0 1 8 t a cm y j am y p c_ m f_ m g s 0 1 8 t a cm y k am y n c_ l f_ l g r 0 1 8 t a cm y l am y m c_ k f_ k g z 0 1 8 t a cm y g cm y r c_ n f_ n g
cat809, cat810 3 doc no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice pin descriptions pin number cat809 cat810 1 1 gnd ground 2 reset active low reset. reset is asserted if v cc falls below the reset threshold and remains low for at least 140ms after v cc rises above the reset threshold. 2 reset active high reset. reset is asserted if v cc falls below the reset threshold and remains high for at least 140ms after v cc rises above the reset threshold. 33v cc power supply voltage that is monitored. name description
cat809, cat810 4 doc. no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice absolute maximum ratings* any pin with respect to ground .......... -0.3 v to +6.0 v input current, v cc ............................................. 20 ma output current, reset, reset ...................... 20 ma rate of rise, v cc ............................................................. 100 v/ s continuous power dissipation derate 2.2mw/ ? c above 70 ? c (sc70) ......... 175 mw derate 4mw/ ? c above 70 ? c (sot23) ......... 320 mw operating temperature range ........... -40 c to +85 c storage temperature range ............ -65 c to +105 c lead soldering temperature (10 sec) .............. 300 c *comment stresses above those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. exposure to any absolute maximum rating for extended periods may affect device performance and reliability. electrical characteristics v cc = full range, t a = -40 c to +85 c unless otherwise noted. typical values at t a = +25 ? c and v cc = 5 v for the l/m/j versions, v cc = 3.3 v for the t/s versions, v cc = 3 v for the r version and v cc = 2.5 v for the z version. parameter symbol conditions min typ max units vcc range t a = 0 c to +70 c1.05.5 t a = -40 c to +85 c1.25.5 v cc < 5.5 v, j/l/m 8 20 v cc < 3.6 v, r/s/t/z 6 15 t a = +25 ? c 4.56 4.63 4.70 t a = -40 ? c to +85 ? c 4.50 4.75 t a = +25 ? c 4.31 4.38 4.45 t a = -40 ? c to +85 ? c 4.25 4.50 t a = +25 ? c 3.93 4.00 4.06 t a = -40 ? c to +85 ? c 3.89 4.10 t a = +25 ? c 3.04 3.08 3.11 t a = -40 ? c to +85 ? c 3.00 3.15 t a = +25 ? c 2.89 2.93 2.96 t a = -40 ? c to +85 ? c 2.85 3.00 t a = +25 ? c 2.59 2.63 2.66 t a = -40 ? c to +85 ? c 2.55 2.70 t a = +25 ? c 2.28 2.32 2.35 t a = -40 ? c to +85 ? c 2.25 2.38 t a = -40 ? c to +85 ? c supply current i cc v a l threshold m threshold j threshold t threshold s threshold r threshold z threshold v reset threshold voltage v th
cat809, cat810 5 doc no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice electrical characteristics v cc = full range, t a = -40 ? c to +85 ? c unless otherwise noted. typical values at t a = +25 ? c and v cc = 5 v for l/m/j versions, v cc = 3.3 v for t/s versions, v cc = 3 v for r version and v cc = 2.5 v for z version. parameter symbol conditions min typ (1) max units reset threshold tempco 30 ppm/ ? c v cc to reset delay (note 2) v cc = v th to (v th - 100 mv) 20 s reset active timeout period t a = -40 ? c to +85 ? c 140 240 400 ms v cc = v th min, i sink = 1.2 ma cat809r/s/t/z v cc = v th min, i sink = 3.2 ma cat809j/l/m v cc > 1.0 v, i sink = 50 a0.3 v cc = v th max, i source = 500 a cat809r/s/t/z v cc = v th max, i source = 800 a cat809j/l/m v cc > v th max, i sink = 1.2 ma cat810r/s/t/z v cc > v th max, i sink = 3.2 ma cat810j/l/m (continued) note 1: production testing done at t a = +25 ? c; limits over temperature guaranteed by design only. note 2: reset output for the cat809; reset output for the cat810 v ol 0.4 v v v oh reset output voltage high (push-pull, active low, cat809) v ol reset output voltage low (push-pull, active high, cat810) v v oh 1.8 v < v cc v th min, i source = 150 a 0.8 v cc 0.8 v cc v cc - 1.5 v reset output voltage low (push-pull, active low, cat809) 0.4 reset output voltage high (push-pull active high, cat810) 0.3 0.3
cat809, cat810 6 doc. no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice typical operating characteristics v cc = full range, t a = -40 ? c to +85 ? c unless otherwise noted. typical values at t a = +25 ? c and v cc = 5 v for l/m/j versions, v cc =3.3 v for t/s versions, v cc = 3 v for r version and v cc = 2.5 v for z version. supply current vs. temperature (no load, cat8xxr/s/t/z) 12 10 8 6 4 2 0 -50 0 50 100 150 supply current ( a) temperature (?c) power-down reset delay vs. temperature (cat8xxr/s/t/z) 14 12 10 8 6 4 2 0 power-down reset delay ( s) temperature (?c) power-up reset timeout vs. temperature 260 240 220 200 180 160 power-up reset timeout (ms) temperature (?c) normalized reset threshold vs. temperature 1.0002 1 0.9998 0.9996 0.9994 0.9992 0.999 0.9988 0 20 40 60 80 100 120 normalized threshold temperature (?c) v cc =3.6v v cc =5.5v -50 0 50 100 150 v cc =5v v cc =2.5v -50 0 50 100 150
cat809, cat810 7 doc no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice 5v 0v 5v 0v 5v 0v cat803/cat809 cat810 threshold voltage 140ms minimum reset timeout period power supply voltage reset reset figure 2. maximum transient duration without causing a reset pulse vs. reset comparator overdrive 30 25 20 15 10 5 0 transient duration [ s) reset overdrive v th - v cc [mv] 1 10 100 1000 t amb = 25 c cat809m cat809z detailed descriptions reset timing the reset signal is asserted low for the cat809 and high for the cat810 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 140ms after the power supply voltage has risen above the threshold. v cc transient response the cat809/810 protect ps against brownout failure. short duration transients of 4 sec or less and 100 mv amplitude typically do not cause a false reset. figure 2 shows the maximum pulse duration of negative- going v cc transients that do not cause a reset condition. figure 1. reset timing diagram as the amplitude of the transient goes further below the threshold (increasing v th - v cc ), the maximum pulse duration decreases. in this test, the v cc starts from an initial voltage of 0.5v above the threshold and drops below it by the amplitude of the overdrive voltage (v th - v cc ).
cat809, cat810 8 doc. no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice valid reset with v cc under 1.0 v to ensure that the cat809 reset pin is in a known state when v cc is under 1.0 v, a 100 k ? pull-down resistor between reset pin and gnd is recommended; the value is not critical. for the cat810, a pull-up resistor from reset pin to v cc is needed. cat809 gnd v cc 100k ? power supply reset cat810 gnd v cc 100k ? power supply reset figure 3. reset reset reset reset reset valid with v cc under 1.0 v figure 4. reset valid with v cc under 1.1 v figure 5. bi-directional reset pin interfacing cat809 gnd v cc 4.7k ? power supply reset buffered reset buf reset input gnd bi-directional i/o pin p (for example: 68hc11) v cc bi-directional reset pin interfacing the cat809/810 can interface with p/ c bi-directional reset pins by connecting a 4.7 k ? resistor in series with the cat809/810 reset output and the p/ c bi-directional reset pin.
cat809, cat810 9 doc no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice other supervisory products function cat1161/3 cat1162 cat809 cat810 cat811 cat812 with 16k bit serial eeprom memory watchdog timer manual reset input active low reset active high reset dual polarity reset outputs package 8-pin 8-pin 3-pin 3-pin 4-pin 4-pin dip and soic dip and soic sot23 and sot23 and sot143 sot143 sc70 sc70
cat809, cat810 10 doc. no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice package information plastic sot-23 (3-pin) inches millimeters min max min max plastic sot-23 (3-pin) a 0.0350 0.0441 0.89 1.12 a1 0.0005 0.0039 0.013 0.10 b 0.0146 0.0197 0.37 0.50 c 0.0033 0.0071 0.085 0.18 d 0.1102 0.1197 2.80 3.04 e 0.0472 0.0551 1.20 1.40 e 0.0350 0.0406 0.89 1.03 e1 0.0701 0.0807 1.78 2.05 h 0.0827 0.1039 2.10 2.64 0 8 0 8 l 0.0083 0.0161 0.275 0.41 l1 0.0160 0.0270 0.275 0.685 note: 1. this part is compliant with jedec specification to-236ab 2. die is face up for mold and trim/form 3. dimensions are exclusive of mold flash and metal burr b h e e1 a1 a d e c l e l1
cat809, cat810 11 doc no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice package information sc-70 package (3-lead) eb e1 e 3 21 c l1 l e a2 a a1 d inches millimeters min max min max plastic sc-70 (3-pin) a 0.0315 0.0433 0.80 1.10 a1 0.0000 0.0039 0.00 0.10 a2 0.0315 0.0394 0.80 1.00 b 0.0059 0.00118 0.15 0.30 c 0.0035 0.0071 0.09 0.18 d 0.0709 0.0866 1.80 2.20 e 0.0453 0.0531 1.15 1.35 e1 0.0709 0.0945 1.80 2.40 e 0.00255 bsc 0.65bsc l 0.0102 0.0181 0.26 0.46 l1 0.0108 0.0226 0.275 0.575 note: 1. this part is compliant with eiaj specification sc-70 2. die is face up for mold. die is facing down for trim/form 3. dimensions are exclusive of mold flash and metal burr
cat809, cat810 12 doc. no. 3004, rev. u ? 2006 by catalyst semiconductor, inc. characteristics subject to change without notice revision history date rev. reason 10/29/2003 n updated vcc transient response text and figure 2 10/30/2003 o updated power up reset timeout vs. temperature curve 3/10/2004 p corrected temperature range updated description updated ordering information updated absolute maximum ratings updated electrical characteristics 03/23/2004 q updated description updated ordering information updated absolute maximum ratings updated electrical characteristics updated typical operating characteristics updated package information 3/25/2004 r changed preliminary designation to final updated max reset active timout period in electrical characteristics updated package drawings 5/10/2004 s updated top marking table 12/28/2005 t updated features updated ordering information updated top marking 02/17/2006 q updated typical operating characteristics 03/27/06 u correct revision number
catalyst semiconductor, inc. corporate headquarters 1250 borregas avenue sunnyvale, ca 94089 phone: 408.542.1000 fax: 408.542.1200 www.catsemi.com copyrights, trademarks and patents trademarks and registered trademarks of catalyst semiconductor include each of the following: dpp ae 2 minipot catalyst semiconductor has been issued u.s. and foreign patents and has patent applications pending that protect its products. catalyst semiconductor makes no warranty, representation or guarantee, express or implied, regarding the suitability of its products for any particular purpose, nor that the use of its products will not infringe its intellectual property rights or the rights of third parties with respect to any particular use or application and specifically disclaims any and all liability aris ing out of any such use or application, including but not limited to, consequential or incidental damages. catalyst semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgica l implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the catalyst semic onductor product could create a situation where personal injury or death may occur. catalyst semiconductor reserves the right to make changes to or discontinue any product or service described herein without not ice. products with data sheets labeled "advance information" or "preliminary" and other products described herein may not be in production or offered for sale . catalyst semiconductor advises customers to obtain the current version of the relevant product information before placing order s. circuit diagrams illustrate typical semiconductor applications and may not be complete. publication #: 3004 revison: u issue date: 02/17/06

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