LED Driver. SP7611A Datasheet

SP7611A Driver. Datasheet pdf. Equivalent


Sipex Corporation SP7611A
www.DataSheet4U.com
Solved by
SP7611A, SP7612A, SP7614A
TM
2-4 Channel Low Dropout Linear LED Driver
FEATURES
LED Drivers for parallel connected LEDs
No EMI, no switching noise
Integrated current matching
PWM and Analog brightness control
Enable/Shutdown control
Shutdown current < 0.01µA
Tiny, RoHS Compliant Lead-Free
Packages: SC-70, 2x2 TDFN
Part #
SP7611A
SP7612A
SP7614A
Channels
4
3
2
Maximum Steady
State Current per LED
40mA
40mA
80mA
N/C VLED1 CTRL
3 21
SP7614A
6 Pin SC70
4
GND
5
VLED2
6
ON/OFF
Pin outs for SP7611A and SP7612A on page 3
APPLICATIONS
Ultra low cost Handsets
PDA, DSC, MP3 players
Handheld Computers
LCD Display Modules
Keyboard Backlight
LCD Backlight
DESCRIPTION
The SP761X driver family provides a simple solution for a matched current source for any color LED.
The current in the LEDs can be programmed by an external resistor. The SP7611A is capable of
driving four LEDs, while the SP7612A can drive three LEDs. The SP7614A is designed to drive two
high current LEDs. LED1 should always be connected to an LED and never left open in order to have
the other LEDs driven with a matched current to LED1. The SP7612A and SP7614A feature Enable
pins for flexible on/off control and PWM dimming. SP7612A/4A has extremely low (0.01uA typical)
shutdown current, prolonging the battery life and giving the longest standby period possible in today's
modern design. SP761X driver family is available in a small footprint 6-pin SC-70 package as well as
the 6-pin 2x2 TDFN.
TYPICAL APPLICATION SCHEMATIC
VIN
VCONTROL
I SET
RSET
LED1
CTRL
LED2
®®
SP7614A
ENABLE
GND
Apr20-07 RevS
SP7611A/7612A/7614A Low Dropout Linear LED driver
Page 1
2007 Sipex Corporation


SP7611A Datasheet
Recommendation SP7611A Datasheet
Part SP7611A
Description (SP7611A - SP7614A) 2-4 Channel Low Dropout Linear LED Driver
Feature SP7611A; www.DataSheet4U.com Solved by SP7611A, SP7612A, SP7614A TM 2-4 Channel Low Dropout Linear LED Driv.
Manufacture Sipex Corporation
Datasheet
Download SP7611A Datasheet




Sipex Corporation SP7611A
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the
operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods
of time may affect reliability.
VLED1, VLED2, VLED3, VLED4 and ENABLE Voltage to GND............................................................................... -0.3V to 6V
CTRL Voltage to GND . ..................................................................................................................................... .-0.5V
Output Current (IOUT) (SP7611A and 7612A)....................................................................................................... 40mA
Output Current (IOUT) (SP7614A)…..................................................................................................................... 80mA
Power Dissipation per Package - 6-pin SC-70 at TA =85°C.............................................................................. 190mW
Junction Temperature ...................................................................................................................................... +150°C
Storage Temperature.......................................................................................................................... -55°C to +150°C
ESD Level........................................................................................................................................................................................................ 4kV HBM
ESD Level........................................................................................................................................................................................................ 1kV CDM
ELECTRICAL SPECIFICATIONS
Specifications are at TA=25°C, VIN = 3.3 to 5.5, ENABLE =VIN, denotes the specifications which apply
over the full operating temperature range, unless otherwise specified.
PARAMETER
LED Cathode Voltage
(VLED)
Ambient Temperature
Output Current
Multiplication Ratio in
Saturation (Note1)
Output Current
Multiplication Ratio
(Gain) (Note1)
LED to LED Current
Matching
Current in OFF Mode
Min. ENABLE ""ON
Voltage" (Note 2)
Max. ENABLE ""OFF
Voltage" (Note 2)
PART # MIN
SP7611A
SP7612A
SP7614A
SP7611A
SP7612A
SP7614A
-40
140
365
730
-3
SP7612A
SP7614A
SP7612A
SP7614A
3
TYP
20
200
435
870
0.8
0.01
MAX
5.5
85
260
505
1010
3
1
0.5
UNITS
V
ºC
% Â
µA Â
V Â
V Â
CONDITIONS
See graph for LED
Current vs. Cathode
Voltage
ISET = 100µA
VLED = 300mV
ISET = 100µA
VLED = 150mV
ISET = 25µA
VLED = 0.5V
ISET = 100µA
VLED = 300mV
VENABLE = 0.0V
ISET = 150µA
Note 1: Output current Multiplication Ratio (ILED/ISET) is not linear. For actual ratio and ILED please refer to typical
performance characteristics on pages 4 through 7.
Note 2: ENABLE "ON" is VON/OFF where ILED1 > 20mA @ VLED1 = 0.3V.
ENABLE "OFF" is V where I < 1µA @ V > 0.3V.
Apr20-07 RevS
SP7611A/7612A/7614A Low Dropout Linear LED driver
Page 2
2007 Sipex Corporation



Sipex Corporation SP7611A
SC70 Package
Pin #
SP7611A
1 CTRL
2 LED2
3 LED1
4 GND
5 LED4
6 LED3
6
Pin Name
SP7612A SP7614A
CTRL
CTRL
LED2
LED1
LED1
NC
GND
GND
LED3
LED2
ENABLE ENABLE
PIN DESCRIPTION
DESCRIPTION
Sets L E D Current
Connect to Cathode of L E D
Connect to Cathode of L E D
Ground
Connect to Cathode of L E D
Connect to Cathode of L E D
Chip ON/ OFF/ Disable
2X2 TDFN Package
Pin #
Pin Name
SP7611A SP7612A SP7614A
1 LED2 LED2
NC
2
CTRL
CTRL
CTRL
3 LED3
3 ENABLE ENABLE
4 LED 4
LED 3
LED 2
5 GND
GND
GND
6 LED 1
LED 1
LED 1
DESCRIPTION
Connect to Cathode of L E D
Sets L E D Current
Connect to Cathode of L E D
Chip ON/ OFF/ Disable
Connect to Cathode of L E D
GROUND
Connect to Cathode of L E D
PINOUTS
LED2
CTRL
LED3
1 SP7611A 6
2
2x2
6 Pin
5
TDFN
34
LED1
GND
LED4
LED2
CTRL
ENABLE
1 SP7612A 6
2
2x2
6 Pin
5
TDFN
34
NC
CTRL
ENABLE
1 SP7614A 6
2
2x2
6 Pin
5
TDFN
34
LED1
GND
LED2
LED1
GND
LED3
Apr20-07 RevS
SP7611A/7612A/7614A Low Dropout Linear LED driver
Page 3
2007 Sipex Corporation







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