IS31BL3229 datasheet(9/11 Pages) ISSI

Part #	IS31BL3229

Description	8-LED BACKLIGHT DRIVER

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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IS31BL3229

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

9

Rev.A, 09/17/2012

THERMAL PROTECTION

The IS31BL3229 has a thermal protection circuit that

will shut down the chip if the die temperature rises

above the thermal limit until the temperature falls

down.

DESIGN NOTE

The decoupling capacitors should be placed close to

the VCC pin. A 0.1μF ceramic and an 1μF capacitors

are recommended. The flying capacitor should be

placed close to the CN and CP pins. The output

capacitor should be placed close to the OUT pin and

the traces of OUT pin connected to the capacitor

should be as possible as short and wide.

Trace width should be at least 0.75mm when the

current reaches 1A. Trace width should be at least

1.0mm for the power supply and the ground plane. The

thermal pad and the GND pin should connect directly

to a strong common ground plane for heat sinking.

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