AP3068 datasheet(1/15 Pages) BCDSEMI

Numer części	AP3068

Szczegółowy opis	WHITE LED DRIVER FOR LCD PANEL BACKLIGHT

PDF	15 Pages

Scroll/Zoom	100%

Producent	BCDSEMI [BCD Semiconductor Manufacturing Limited]

Strona internetowa	http://www.bcdsemi.com

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Preliminary Datasheet

WHITE LED DRIVER FOR LCD PANEL BACKLIGHT

AP3068

May. 2010

Rev. 1.3

BCD Semiconductor Manufacturing Limited

1

General Description

The AP3068 is a white LED (WLED) driver with

current balancing and dimming functions. It consists

of a boost controller and 8-channel current sinks to

drive WLED arrays with constant current from a

wide power supply range. It can be used in middle

and large-sized LCD panel backlight.

The full-scale LED current can be adjusted from

5mA to 100mA simply via a resistor. The 8 channels

can be paralleled for higher current application. The

AP3068 can support direct PWM dimming.

The AP3068 features LED open/short protection,

Under Voltage Lockout (UVLO) protection, over

output voltage protection and Over Temperature

Protection (OTP).

The AP3068 is available in TSSOP-281(EDP)

package.

Features

•

Input Voltage Range: 6V to 27V

•

Maximum Duty Cycle: 93%

•

Maximum Channel Current: 100mA

•

Current Matching Accuracy: ±1.5%

•

Adjustable Operating Frequency: 200kHz to

•

1MHz

•

Cycle-by-cycle Current Limit

•

Unused LED Channel Auto-detection

•

Open/Short LED Protection

•

Programmable Soft-start

•

Programmable UVLO Protection

•

Programmable OVP

•

Over Temperature Protection

•

FBX and SDBX Pins Enable Parallel

•

Application with AP3608E

Applications

•

LCD Monitor

•

LCD Display Module

•

LCD TV

Figure 1. Package Type of AP3068

TSSOP-28 (EDP)

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AP3068 Arkusz danych(PDF) 1 Page - BCD Semiconductor Manufacturing Limited

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