IS31LT3352-V2GRLS2-TR ISSI, IS31LT3352-V2GRLS2-TR Datasheet - Page 3

• Manufacturer Part Number: IS31LT3352-V2GRLS2-TR
• Description: LED Lighting Drivers 40V LED Drvr w/ External Switch
• Manufacturer: ISSI

Specifications of IS31LT3352-V2GRLS2-TR

• Input Voltage: 6 V to 40 V
• Operating Frequency: 154 kHz
• Maximum Supply Current: 80 uA
• Output Current: 750 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-8
• Factory Pack Quantity: 2500

IS31LT3352
PIN CONFIGURATIONS
PIN DESCRIPTION
Integrated Silicon Solution, Inc. – www.issi.com
Rev. A, 09/01/2011
Name
Pin
V
I
R
R
ADJO
ADJI
GND
LX
SENSE
IN
TH
NTC
Package
SOP8
NO.
1
2
3
4
5
6
7
8
close to device
=0.1/R
external resistor.
The output currents reduction slope set pin by connecting an external thermistor in
temperature compensation mode.
LED drivers chain application pin.
* When R
* When R
information
current IOUT nom=0.1/RS )
* Drive to voltage below 0.2V to turn off output current
* Drive with DC voltage (0.3V<VADJI <1.2V) to adjust output current from 25% to 100% of
IOUTnom
* Drive with PWM signal to adjust output current.
*When driving the ADJI pin above 1.2V, the current will be clamped to 100% brightness
automatically.
Description
Input voltage (6V to 40V). Decouple to ground with 1μF or higher X7R ceramic capacitor
Connect resistor R
The pin set the starting temperature of temperature compensation by connecting an
Multi-function On/Off and brightness control pin:
* Leave floating for normal operation.(V
Ground (0V)
Drain of power switch
V
ADJIO
S
=V
3
(NTC)>R
3
ADJI
(NTC)<R
*R
3
/R
2
2
S
,V
2
, ADJO pin outputs ADJI voltage with temperature compensation
from this pin to V
ADJO
=V
ADJI
Pin Configurations
IN
ADJI
to define nominal average output current I
= V
REF
= 1.2V giving nominal average output
OUTnom
3