SP7612AEC6-L Exar Corporation, SP7612AEC6-L Datasheet

LED DRIVER LOW DROPOUT, SMD, 7612

SP7612AEC6-L

Manufacturer Part Number
SP7612AEC6-L
Description
LED DRIVER LOW DROPOUT, SMD, 7612
Manufacturer
Exar Corporation
Datasheet
1.SP7612AEC6-L.pdf (10 pages)

Specifications of SP7612AEC6-L

Primary Input Voltage
5.5V
No. Of Outputs
2
Voltage Regulator Case Style
SC-70
No. Of Pins
6
Operating Temperature Range
-40°C To +85°C
Operating Temperature Max
85°C
Operating Temperature
RoHS Compliant
FEATURES
Date: 10/11/04
The SP761X driver family provides a simple solution for a matched current source any color LED.
The current in the LEDs can be programmed by an external resistor. The Individual LED currents
are 200 x ISET, where ISET is the current through the external resistor connected to the CTRL
pin. The SP7611A is capable of driving four LEDs, while the SP7612/12A can drive three LEDs.
The SP7614/14A is designated to drive two high current LEDs. LED1 should always be
connected to an LED in order to have the other LEDs driven with a matched current to LED1.
The SP7612 /12A and SP7614/14A have Enable pins. When these devices are disabled, the
supply current drops to 0.01µA typical.
The SP761X driver family is available in a small footprint 6-pin SC-70 package.
P/N
SP7611A
SP7612/12A
SP7614/14A
LED Drivers for parallel connected LEDs
Ultra Low Dropout Voltage of 150mV
(SP7614/14A)
No EMI, no switching noise
Integrated current matching
PWM and Analog brightness control
Enable/Shutdown control
Shutdown current < 1µA
Small footprint SC-70 Package
V CONTROL
Channels Steady State Current Per LED
4
3
2
V IN
®
Low Dropout LED Driver for any Color LED
SP7611A, SP7612/12A, SP7614/14A
SP7611A/7612/7614 Low Dropout LED Driver for Any Color LED
ENABLE
R SET
I SET
40mA
40mA
80mA
ON/OFF
CTRL
PRELIMINARY
LED1
1
SP7614/14A
APPLICATIONS
Now Available in Lead Free Packaging
GND
TYPICAL APPLICATION SCHEMATIC
Next Generation Mobile Phones
PDA, DSC, MP3 players
Handheld Computers
LCD Display Modules
Keyboard Backlight
LED Displays
®
®
LED2
SP7614/14A
6 Pin SC70
© Copyright 2004 Sipex Corporation
DESCRIPTION

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SP7612AEC6-L Summary of contents

Page 1

SP7611A, SP7612/12A, SP7614/14A Low Dropout LED Driver for any Color LED FEATURES LED Drivers for parallel connected LEDs Ultra Low Dropout Voltage of 150mV (SP7614/14A) No EMI, no switching noise Integrated current matching PWM and Analog brightness control Enable/Shutdown ...

Page 2

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 ...

Page 3

...

Page 4

SP7614 ISET versus CTRL Voltage - Vcathode=1V 200.0 180.0 160.0 140.0 120.0 100.0 80.0 60.0 40.0 20.0 0.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 CTRL Pin Voltage (V) SP7614 ILED vs Set Resistor and Cathode Voltage (Vcontrol = 3V) ...

Page 5

SP7614A CTRL Current versus CTRL Voltage (Vcontrol = open) Iset (uA) 200.0 180.0 160.0 140.0 120.0 100.0 80.0 60.0 40.0 20.0 0.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 CTRL Pin Voltage (V) SP7614A ILED vs Set Resistor and Cathode ...

Page 6

SETTING THE LED CURRENT The current flowing into LEDs is approximately 200 times greater than the current I . The LED current is SET controlled by I and R according to the follow- CONTROL SET ing formula : I = ...

Page 7

Example 2: Drive high V white or blue LEDs from F existing bus from 4.0V to 5.5V High V LEDs have a forward voltage drop in the range F of 3.2V to 4.0V. In order to drive these LEDs with ...

Page 8

Analog Set V and R for LED current CONTROL SET - PWM - 200 LED CONTROL - CTRL SET -Amplitude sets maximum LED current -Pulse width controls between 0 and maximum ...

Page 9

N N/2 INDEX AREA (D/2 X E1/ PIN SC-70 Dimensions in (mm) JEDEC MO-203 (AB) Variation MIN 0.70 b 0. ...

Page 10

... SP7612EC6 ................................................ -40°C to +85°C ......................................................... 6 Pin SC-70 SP7612EC6/TR .......................................... -40°C to +85°C ......................................................... 6 Pin SC-70 SP7612AEC6 .............................................. -40°C to +85°C ......................................................... 6 Pin SC-70 SP7612AEC6/TR ........................................ -40°C to +85°C ......................................................... 6 Pin SC-70 SP7614EC6 ................................................ -40°C to +85°C ......................................................... 6 Pin SC-70 SP7614EC6/TR .......................................... -40°C to +85°C ......................................................... 6 Pin SC-70 SP7614AEC6 .............................................. -40°C to +85°C ......................................................... 6 Pin SC-70 SP7614AEC6/TR ........................................ -40° ...

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