IS32LT3120 datasheet(2/14 Pages) ISSI

Part #	IS32LT3120

Description	DUAL CHANNEL, LINEAR LED DRIVER WITH FADE IN/FADE OUT

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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2 / 14 page

IS32LT3120

Integrated Silicon Solution, Inc. – www.issi.com

Rev.0A, 08/15/2014

2

PIN CONFIGURATION

Package

Pin Configuration (Top view)

SOP-8-EP

PIN DESCRIPTION

No.

Description

1

TSET

Timing control for the fade in and fade out feature. Connect a

resistor between this pin and GND to set the fade in and fade

out time. Connect this pin directly to ground to disable the fade

function for instant on/off.

2

ISET

Output current setting for both channel 1 and channel 2.

Connect a resistor between this pin and GND to set the

maximum output current.

3

GND

Ground pin for the device.

4

OUT1

Output current source channel 1.

5

OUT2

Output current source channel 2.

6

VCC

Power supply input pin.

7

EN2

Internally debounced input pin for control of channel 2.

Momentary contact will toggle the state of the corresponding

OUT2 LED. Pin condition is ignored until completion of fade in

or fade out function.

8

EN1

Internally debounced input pin for control of channel 1.

Momentary contact will toggle the state of the corresponding

OUT1 LED. Pin condition is ignored until completion of fade in

or fade out function.

Thermal Pad

Connect to GND.

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IS32LT3120 Datasheet(PDF) 2 Page - Integrated Silicon Solution, Inc

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