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IR2E46Y
IR2E46Y
Illumination and Flash RGB-LED Driver
Description
IR2E46Y incorporates the illumination driver and the flash driver for an RGB-LED, and is equipped with the step-up DC/DC converter. This product is optimum for use as the RGB-LED driver IC for PDA and cellular phone applications, etc.
Agency approvals/Compliance
1. Compliant with RoHS directive(2002/95/EC)
Applications Features
1.Power supply: 2.7 V to 4.5 V 2.Supports I2C-bus interface The I2C address extension function enables simultaneous controlling of four devices. 3.SCL pin and SDA pin are installed with noise filters. 4.Sink-type variable constant current driver for RGB-LED (maximum current 155mA x 3ch Stroboscopic mode: 0mA to 155mA (32 steps per output, 5.0mA STEP) Illumination mode: 0mA to 31.5mA (64 steps per output, 0.5mA STEP) 5.VF control circuit embedded (VDD to 13V) 6.LED brightness adjustment circuit embedded (16 steps, PWM control) 7.Stroboscopic timer embedded 8.Independent RGB control output enable circuit embedded 9.Current slope control circuit embedded 10.Voltage/current PWM control type step-up DC/DC converter circuit embedded (oscillatory frequency 1.2 MHz) 11.Low ON resistance switch (0.2 TYP.) 12.SW transistor overcurrent protection circuit embedded 13.Voltage reference embedded 14.Stand-by circuit embedded 15.Power-on-reset circuit embedded 16.UVLO circuit embedded 17.Digital soft-start circuit embedded 18.Thermal shutdown circuit embedded 1.Torch light and illuminations (RGB LED)
Notice The content of data sheet is subject to change without prior notice. In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. Sheet No.: F1-A00301EN Date Dec.01.2006 (c)SHARP Corporation
IR2E46Y
Block diagram
SBD CVOUT 2.2F LED
L 2.2H
CVIN
VBAT
VBAT
R2 39k
C2 220pF
RCS 75m
EI R1:50k C1:8pF VREF
FB
ES
E0
LEDGND
B
G
R
SWGND CSS Current Sense/Limit
CS1 CS2 CS3
R3 700k R4 50k
LX1 LX2 LX3 LX4
IREF RIREF 6.8k IREF
ERROR AMP DRIVER
PGND OSC CVIN AGND
VDAC
PWN COMP DRV
VDD1 UVLO VDD2 POR TSD DC/DC Logic IDAC
SCL SDA ADD0 ADD1
I2C Interface + Register Logic LED LOGIC
XSTBY
PGND
ENR
ENG
ENB
STRIG
1000pF
Sheet No.: F1-A00301EN
IR2E46Y
Outline Dimensions
(Unit : mm)
(Note)It is those with an underline printing in a date code because of a LEAD-FREE type.
A B INDEX(laser marking)
TOP VIEW
S 0.1
0.820.08 SIDE VIEW S
0.28(TYP.) 0.170.03
S 0.08
D
3.570.05
P-0.5(TYP.) C
ABCDE
D
F
BOTTOM VIEW
1
2
3
4
5
6
P-0.5(TYP.) 0.290.05
3.570.05
0.20 M S AB 0.10 M S CD
Package name : WLP033-X-3636 Lead finish or Ball type : LEAD FREE TYPE(Sn-3Ag-0.5Cu) *Use of an "Under-fill" (Note) Body dimensions do not include burr of resin. *Use of an "Under-fill": Since the external terminals are arranged at intervals of 0.5mm, SHARP recommends use of appropriate "Under fill" to this product for high reliability.
Markings.
1 2 3 Product name IR2E46 Company name SHARP Date code ExampleYYWW XXXX YY Denotes the production year. (Last two digits of the year.) WW Denotes the production week.01025253 XXXX Denotes the production ref. code(34 digits). "JAPAN" indicates the country of origin.
4
Sheet No.: F1-A00301EN
IR2E46Y
Terminal Name
Pin No A1 A2 A3 A4 A5 A6 B1 B2 B3 B4 B5 B6 C1 C2 C3 C5 C6 D1 D2 D5 D6 E1 E2 E3 E4 E5 E6 F1 F2 F3 F4 F5 F6 Pin name U1 ENG ENB LX1 LX2 U2 R VDD2 ENR PGND CS1 CS2 G B NC CSS SWGND LEDGND ADD1 EO AGND STRIG SDA XSTBY EI FB ES U1 ADD0 SCL IREF VDD1 U2 Description Non-connect. This terminal is connected pin No. F1(U1). Enable input terminal for G. Enable input terminal for B. SW Tr. drain terminal. SW Tr. drain terminal. Non-connect. This terminal is connected pin No. F6(U2). Constant current output terminal for red LED. Power supply terminal (digital). Enable input terminal for R. Power ground. SW Tr. Source terminal. SW Tr. Source terminal. Constant current output terminal for green LED. Constant current output terminal for blue LED. Non-connect. SW Tr. source terminal (current sense terminal). SW Tr. source terminal (current sense terminal). LED ground. I2C address extension input terminal. Error amplifier output terminal. Analog ground. Stroboscopic timer trigger input terminal. I2C Data Input/Output. Stand-by input terminal. Error amplifier reference input terminal. Output voltage feedback input terminal. Error amplifier negative input terminal. Non-connect. This terminal is connected pin No. A1(U1). I2C address extension input terminal. I2C Clock. Resistor connection terminal for reference current setting. Power supply terminal (analog). Non-connect. This terminal is connected pin No. A6(U2).
Sheet No.: F1-A00301EN
IR2E46Y Pin Assignment
1
2
3
4
5
6
A
U1
ENG
ENB
LX1
LX2
U2
B
R
VDD2
ENR
PGND
CS1
CS2
C
G
B
NC
CSS
SWGND
D
LEDGND
ADD1
EO
AGND
E
STRIG
SDA
XSTBY
EI
FB
ES
F
U1
ADD0
SCL
IREF
VDD1
U2
Note: Pins are located on the underside.
Sheet No.: F1-A00301EN
IR2E46Y
Absolute Maximum Ratings
Parameter Power supply Terminal voltage Symbol VDD1,VDD2 LX1,LX2,LX3,LX4 FB,G, B Rating 6.0 -0.3 to 22.0 Unit V Conditions
V R -0.3 to 6.0 Others -0.3V to VDD+0.3 R,G,B Output current 155 x 3ch mA Pd Power dissipation 1667 mW Derating ratio Pd 16.67 mW/C C Operating temperature range Topr -30 to 85 C Storage temperature range Tstg -55 to 125 Note1: Free convection,on-board,compiled with SEMI42-996
Ta25C Note1 Ta>25C Note1
Recommended Operating Condition
Parameter Power supply Terminal voltage Symbol VDD1, VDD2 LX1,LX2,LX3,LX4 FB,G, B R Others fCLK fOSC Value 2.7 to 4.5 0 to 13 0 to 4.5 0 to VDD 3.4 1.2 V Unit V Conditions
I2C communication frequency Switching frequency
MHz MHz
Sheet No.: F1-A00301EN
IR2E46Y
Electric Characteristics
See the Block Diagram unless otherwise specified. VDD1=VDD2=3.6V, ENR=ENG=ENB=XSTBY=3.6V, ADD0=ADD1=STRIG=0V, R=G=B=1.0V, Ta=25C I2C register setting: XSTB=1, BOOST=1 The current direction is regarded positive when entering the IC and negative when exiting.
Current consumption Parameter Stand-by supply current Supply current
Symbol ISS IDD
Measurement condition XSTBY=0V or XSTB=0 BOOST=0
MIN. 0.8
TYP. 1 1.3
MAX. 3 1.8
Unit A mA
Step-up DC/DC converter circuit Symbol Parameter Conversion efficiency PEff Switch ON resistance RDSON Switching frequency fOSC Maximum duty DT FET current limiting voltage SW Tr. OFF leak current VCL ILEAKSW
Measurement condition
MIN. 0.1 1.0
TYP. 85 0.2 1.2 85 120 1
MAX. 0.3 1.4 156 5
Unit % MHz % mV A
Voltage between CCS pin and SWGND pin XSTBY=0V or XSTB=0 LX1, LX220V
84
ENR pin, ENG pin, ENB pin, STRIG pin, SDA pin, SCL pin, ADD0 pin, ADD1 pin Symbol Measurement condition Parameter High level input voltage Low level input voltage High level input current Low level input current Hysteresis voltage ENx pulse width SDA output terminal voltage XSTBY pin Parameter High level input voltage Low level input voltage High level input current Low level input current UVLO circuit Parameter UVLO threshold voltage UVLO hysteresis Thermal shutdown circuit Parameter Operation stop temperature VIH VIL IIH IIL Vhys PWEN VOL SDA pin, SCL pin, ADD0 pin , ADD1 pin, and STRIG pin Duration when ENx is "H" or "L" IOL=3mA
MIN. 0.8VDD 0 -1 -1
TYP. 0.05VDD
MAX. VDD 0.2VDD 1 1
Unit V V A A V
1.0 -
0.2
0.4
s V
Symbol VIH VIL IIH IIL Symbol TUTh UVHys Symbol
Measurement condition
MIN. 1.44 0 -1 -1
TYP. 25 TYP. 2.35 100 TYP.
MAX. VDD 0.90 75 1 MAX. 2.55
Unit V V A A Unit V mV Unit
Measurement condition
MIN. 2.15
Measurement condition
MIN. 150
MAX.
C
Sheet No.: F1-A00301EN
IR2E46Y
Constant current driver circuit Parameter
Symbol
Measurement condition RSDUTY[00000], R=1, S/I=1 RSDUTY[00001], R=1, S/I=1 RSDUTY[00010], R=1, S/I=1 RSDUTY[00100], R=1, S/I=1 RSDUTY[01000], R=1, S/I=1 RSDUTY[10000], R=1, S/I=1 RSDUTY[11111], R=1, S/I=1 RIDUTY[000000], R=1 RIDUTY[000001], R=1 RIDUTY[000010], R=1 RIDUTY[000100], R=1 RIDUTY[001000], R=1 RIDUTY[010000], R=1 RIDUTY[100000], R=1 RIDUTY[111111], R=1 GSDUTY[00000], G=1, S/I=1 GSDUTY[00001], G=1, S/I=1 GSDUTY[00010], G=1, S/I=1 GSDUTY[00100], G=1, S/I=1 GSDUTY[01000], G=1, S/I=1 GSDUTY[10000], G=1, S/I=1 GSDUTY[11111], G=1, S/I=1 GIDUTY[000000], G=1 GIDUTY[000001], G=1 GIDUTY[000010], G=1 GIDUTY[000100], G=1 GIDUTY[001000], G=1 GIDUTY[010000], G=1 GIDUTY[100000], G=1 GIDUTY[111111], G=1 BSDUTY[00000], B=1, S/I=1 BSDUTY[00001], B=1, S/I=1 BSDUTY[00010], B=1, S/I=1 BSDUTY[00100], B=1, S/I=1 BSDUTY[01000], B=1, S/I=1 BSDUTY[10000], B=1, S/I=1 BSDUTY[11111], B=1, S/I=1 BIDUTY[000000], B=1 BIDUTY[000001], B=1 BIDUTY[000010], B=1 BIDUTY[000100], B=1 BIDUTY[001000], B=1 BIDUTY[010000], B=1 BIDUTY[100000], B=1 BIDUTY[111111], B=1 Terminal voltage =4.5V Terminal voltage =15V Terminal voltage =15V
MIN. 0.0 5.0 10.0 30.0 70.0 139.5 0.00 0.50 1.00 3.00 7.00 15.00 28.35 0.0 5.0 10.0 30.0 70.0 139.5 0.00 0.50 1.00 3.00 7.00 15.00 28.35 0.0 5.0 10.0 30.0 70.0 139.5 0.00 0.50 1.00 3.00 7.00 15.00 28.35
TYP. 1.0 5.0 10.0 20.0 40.0 80.0 155.0 1.00 0.50 1.00 2.00 4.00 8.00 16.00 31.50 1.0 5.0 10.0 20.0 40.0 80.0 155.0 1.00 0.50 1.00 2.00 4.00 8.00 16.00 31.50 1.0 5.0 10.0 20.0 40.0 80.0 155.0 1.00 0.50 1.00 2.00 4.00 8.00 16.00 31.50 1 1 1
MAX. 5.0 15.0 20.0 30.0 50.0 90.0 170.5 5.00 1.50 2.00 3.00 5.00 9.00 17.00 34.65 5.0 15.0 20.0 30.0 50.0 90.0 170.5 5.00 1.50 2.00 3.00 5.00 9.00 17.00 34.65 5.0 15.0 20.0 30.0 50.0 90.0 170.5 5.00 1.50 2.00 3.00 5.00 9.00 17.00 34.65 5 5 5
Unit A mA mA mA mA mA mA A mA mA mA mA mA mA mA A mA mA mA mA mA mA A mA mA mA mA mA mA mA A mA mA mA mA mA mA A mA mA mA mA mA mA mA A A A
R output current (stroboscopic mode)
IoRS
R output current (illumination mode)
IoRI
G output current (stroboscopic mode)
IoGS
G output current (illumination mode)
IoGI
B output current (stroboscopic mode)
IoBS
B output current (illumination mode)
IoBI
R terminal leak current G terminal leak current B terminal leak current
ILEAKR ILEAKG ILEAKB
Sheet No.: F1-A00301EN
IR2E46Y I2C-BUS Interface timing characteristics
All specified output timings are based on 20% and 80% of VDD.
Fs-mode Parameter SCL clock frequency Hold time(repeated) START condition LOW period of the SCL clock HIGH period of the SCL clock Data set-up time Data hold time SCL and SDA rise time SCL and SDA fall time Capacitive load represented by each bus line Set-up time for STOP condition Tolerable spike width on bus Bus free time between START and STOP condition Noise margin at the LOW level for each connected device (including hysteresis) Noise margin at the HIGH level for each connected device (including hysteresis) Hs-mode Parameter SCL clock frequency Set-up time(repeated) START condition Hold time(repeated) START condition LOW period of the SCL clock HIGH period of the SCL clock Data set-up time Data hold time Rise time of the SCL signal Rise time of the SCL signal after the acknowledge bit Fall time of the SCL signal Rise time of the SDA signal Fall time of the SCL signal Set-up time for STOP condition Capacitive load for the SDA and SCL lines Capacitive load for the SDA and SCL lines Tolerable spike width on bus Noise margin at the LOW level for each connected device (including hysteresis) Noise margin at the HIGH level for each connected device (including hysteresis) Note 1: Cb=100pF total capacitance of one bus line. Symbol fSCLH tSU;STA tHD;STA tLOW tHIGH tSU;DAT tHD;DAT trCL trCL1 tfCL trDA tfCL1 tSU;STO Cb Cb2 tSP VnL VnH Conditions MIN. 0 160 160 160 60 10 20 10 10 10 10 10 160 TYP. MAX. Unit 3.4 MHz ns ns ns ns ns 70 ns 40 ns 80 ns 40 80 80 100 400 5 ns ns ns ns pF pF ns V V Symbol fSCL tHD;STA tLOW tHIGH tSU;DAT tHD;DAT tr tf Cb tSU;STO tSP tBUF VnL VnH Conditions MIN. 0 600 1300 600 100 0
20+0.1Cb 20+0.1Cb
Note 1. Note 1.
600 1300
TYP. -
MAX. 400 900 300 300 400 50 -
Unit kHz ns ns ns ns ns ns ns pF ns ns ns V V
0.1VDD 0.2VDD
0.1VDD 0.2VDD
Sheet No.: F1-A00301EN
IR2E46Y
Fig.1 I2C-Bus timing diagram (Fs-mode)
SDA
tBUF tLOW tr tSU;DAT tf tHD;STA tSP
tf
tr
SCL tSU;STO tHD;STA tHD;DAT tSU;STA tHIGH
Fig.2 I2C-Bus timing diagram (Hs-mode)
SDAH
tSU;STA
tHD;STA tHD;DAT tSU;DAT
tHIGH trCL1
tSU;STO
SCLH
tfCL1
tLOW tfCL tHIGH tLOW
trCL
Sheet No.: F1-A00301EN
IR2E46Y
Example of typical characteristics
Fig.3 fOSC vs. VDD Fig.4 fOSC vs. temperature
fOSC(MHz)
fOSC(MHz
VDD (V)
Temperature (oC)
Fig.5 IDD vs. VDD
IDD vs. VDD
Fig.6 IDD vs. temperature
IDD vs. temperature
IDD(mA)
IDD(mA)
VDD (V)
Temperature (oC)
Sheet No.: F1-A00301EN
IR2E46Y
Fig.7 IOUT(R) vs. Terminal voltage Fig.8 IOUT(B) vs. Terminal voltage
Fig.9 IOUT(G) vs. Terminal voltage
Voltage and current pulse of pre illuminating (RGB each 20mA) to flashing (R=80mA, G=120mA, B=75mA). Pin: VDD1=VDD2=3.6V, ENR=ENG=ENB=XSTBY=3.6V, ADD0=ADD1=STRIG=0V Resister setting: RSLSET:h'F1, GBSLSET: h'01, STSET: h'10, RGSDSET:h'10, GBSDSET: h'3F, RIDSET: h'E8, GIDSET: h'E8, BIDSET: h'E8, RONSET: h'80, START: h'9F Stroboscopic trigger: START:h'3F
VDD=3.6V Battery voltage=3.6V
VDD=3.6V Battery voltage=2.9V
FLASH
FB pin voltage 2V/DIV
FLASH
FB pin voltage 2V/DIV
Pre emission
Pre emission
Battery current 200mA/DIV
Battery current 200mA/DIV
Sheet No.: F1-A00301EN
IR2E46Y
Cautions
Connect the power supply terminals (VDD1 pin and VDD2 pin) with the shortest distance and set terminals same potential. Connect the grounding terminals (PGND pin, SWGND pin, AGND pin, and LEDGND pin) with the shortest distance and set terminals same potential. Connect the LX terminals (LX1 pin, LX2 pin) with the shortest distance and set terminals same potential. Connect the CS terminals (CS1 pin, CS2 pin, and CSS pin) with the shortest distance and set terminals same potential. It is recommended to install a capacitor between the power supply terminal and grounding terminal. Position a bypass capacitor between the power supply terminal and grounding terminal close to the IC and use broad patterns. It is recommended to install an approximately 1000-pF capacitor between the Power supply terminal and ENx pin for countermeasure against static electricity. Use a broad and short patterns for the line that is connected from CVIN GND to CVIN GND through L and RCS. Position the Schottky-barrier diode (SBD) close to the CVOUT. Use patterns as broad and as short as possible for the power supply lines and grounding lines. Don't set input terminals (ENR pin, ENG pin, ENB pin, STRIG pin, SDA pin, SCL pin, ADD0 pin, and ADD1pin) floating. Apply the voltage to input terminals (ENR pin, ENG pin, ENB pin, STRIG pin, SDA pin, SCL pin, ADD0 pin, and ADD1pin) with input voltage range specified electric characteristics. In any cases including the timing of power on and power off, do not use absolute maximum ratings. Continuous running with the maximum output power may be caused exceeding maximum power dissipation. Be careful not to exceed maximum power dissipation in consideration of heat transfer resistance of a mounting board, ambient air temperature, and output electric power. Position the RIREF close to the IC to circumvent the effect of noise.
Sheet No.: F1-A00301EN
IR2E46Y
Important Notices
* The circuit application examples in this publication are provided to explain representative applications of SHARP devices and are not intended to guarantee any circuit design or license any intellectual property rights. SHARP takes no responsibility for any problems related to any intellectual property right of a third party resulting from the use of SHARP's devices. * Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. SHARP reserves the right to make changes in the specifications, characteristics, data, materials, structure, and other contents described herein at any time without notice in order to improve design or reliability. Manufacturing locations are also subject to change without notice. * Observe the following points when using any devices in this publication. SHARP takes no responsibility for damage caused by improper use of the devices which does not meet the conditions and absolute maximum ratings to be used specified in the relevant specification sheet nor meet the following conditions: (i) The devices in this publication are designed for use in general electronic equipment designs such as: --- Personal computers --- Office automation equipment --- Telecommunication equipment [terminal] --- Test and measurement equipment --- Industrial control --- Audio visual equipment --- Consumer electronics (ii) Measures such as fail-safe function and redundant design should be taken to ensure reliability and safety when SHARP devices are used for or in connection with equipment that requires higher reliability such as: --- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.) --- Traffic signals --- Gas leakage sensor breakers --- Alarm equipment --- Various safety devices, etc. (iii) SHARP devices shall not be used for or in connection with equipment that requires an extremely high level of reliability and safety such as: --- Space applications --- Telecommunication equipment [trunk lines] --- Nuclear power control equipment --- Medical and other life support equipment (e.g., scuba). * If the SHARP devices listed in this publication fall within the scope of strategic products described in the Foreign Exchange and Foreign Trade Law of Japan, it is necessary to obtain approval to export such SHARP devices. * This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, in whole or in part, without the express written permission of SHARP. Express written permission is also required before any use of this publication may be made by a third party. * Contact and consult with a SHARP representative if there are any questions about the contents of this publication.
Sheet No.: F1-A00301EN

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