sp7612ec6-l-tr Exar Corporation, sp7612ec6-l-tr Datasheet

no-image

sp7612ec6-l-tr

Manufacturer Part Number
sp7612ec6-l-tr
Description
Sp7614 -low Dropout Led Driver For Any Color Led With Active Shutdown
Manufacturer
Exar Corporation
Datasheet
The SP7612/4 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 SP7612 is capable of driving three LEDs, while the
SP7614 can drive two 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 SP7612 and SP7614 feature Enable pins
for flexible on/off control and PWM dimming. SP7612/4 has extremely low (0.01uA typical) shutdown current,
prolonging the battery life and giving the longest standby period possible in today's modern design. It is
available in a small footprint 6-pin SC-70 package.
SP7612
SP7614
FEATURES
Jan 09 -08 RevT
Part #
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
Channels
3
2
State Current per LED
Low Dropout Linear LED Driver
Maximum Steady
SP7612/7614 Low Dropout Linear LED driver
40mA
80mA
SP7612 Typical application
Page 1
Pin outs for SP7611A and SP7612A on page 3
TYPICAL APPLICATION SCHEMATIC
Ultra low cost Handsets
PDA, DSC, MP3 players
Handheld Computers
LCD Display Modules
Keyboard Backlight
LCD Backlight
SP7612 SP7614
APPLICATIONS
N/C
GND
SP7614A
© 2008 EXAR Corporation
6 Pin SC70
SP7614
VLED2
VLED1
ON/OFF
CTRL
DESCRIPTION

Related parts for sp7612ec6-l-tr

sp7612ec6-l-tr Summary of contents

Page 1

... 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 TYPICAL APPLICATION SCHEMATIC SP7612 Typical application Page 1 N/C VLED1 CTRL SP7614A SP7614 6 Pin SC70 GND VLED2 ON/OFF DESCRIPTION © 2008 EXAR Corporation ...

Page 2

... See graph for LED Current vs. Cathode Voltage I = 100µA SET V = 300mV LED I = 100µA SET V = 150mV LED I = 25µA SET V = 0.5V LED I = 100µA SET ♦ 300mV LED ♦ 0.0V ENABLE ♦ 150µA SET ♦ please refer to typical LED © 2008 EXAR Corporation ...

Page 3

... GND ENABLE Page 3 PIN DESCRIPTION PINOUTS © 2008 EXAR Corporation ...

Page 4

... LED current vs Rset for LED voltage (Vcathode) LED current vs Cathode voltage (VLED) Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 SP7612 TYPICAL PERFORMANCE CHARACTERISTICS Vcontrol set to 3V © 2008 EXAR Corporation Page 4 ...

Page 5

... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 SP7612 TYPICAL PERFORMANCE CHARACTERISTICS Iset vs Control pin voltage LED current vs Enable voltage Iset at .5V VLED(cathode voltage) Page 5 © 2008 EXAR Corporation ...

Page 6

... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 © 2008 EXAR Corporation Page 6 ...

Page 7

... LED current vs Cathode voltage (VLED) Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 SP7614 TYPICAL PERFORMANCE CHARACTERISTICS Iset vs Control pin voltage Page 7 © 2008 EXAR Corporation ...

Page 8

... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 LED current vs Enable voltage Iset at .5V VLED(cathode voltage) Page 8 © 2008 EXAR Corporation ...

Page 9

... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 © 2008 EXAR Corporation Page 9 ...

Page 10

... Refer to "LED Current vs. LED graph under the Typical - CATHODE IN , the higher the system CATHODE with more LEDs as shown in IN The SP7612/4 driver's low dropout can significantly improve white or blue LEDs directly from F © 2008 EXAR Corporation the ...

Page 11

... SETTING THE LED CURRENT – page 6 ENABLE = PWM white F -Amplitude has no effect on current -Pulse width controls current between 0 and maximum LED set current Page 11 vs. V " graph under SET CRTL CONTROL and R for LED current SET and R for LED current CONTROL SET © 2008 EXAR Corporation ...

Page 12

... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 © 2008 EXAR Corporation Page 12 BLOCK DIAGRAMS ...

Page 13

... Jan 09 -08 RevT SP7612/7614 Low Dropout Linear LED driver SP7612 SP7614 PACKAGE: 6 PIN SC-70 © 2008 EXAR Corporation Page 13 ...

Page 14

... Temperature Part Number Range SP7612EC6-L -40°C to +85°C SP7612EC6-L/TR -40°C to +85°C SP7614EC6-L -40°C to +85°C SP7614EC6-L/TR -40°C to +85°C /TR = Tape and Reel Pack quantity is 2500 for SC70 For further assistance: Email: EXAR Technical Documentation: EXAR Corporation reserves the right to make changes to the products contained in this publication in order to improve design, performance or reliability ...

Related keywords