AP3607 BCD Semiconductor, AP3607 Datasheet

AP3607

Manufacturer Part Number

AP3607

Description

4/6 Channel Charge PUMP Current SINK FOR LED Driver

Manufacturer

BCD Semiconductor

Datasheet

1.AP3607.pdf (18 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AP3607FNTR-G1

Manufacturer:

DIODES/美台

Quantity:

20 000

Company:

H&T Electronics

Part Number:

AP3607FNTR-G1

Quantity:

30 091

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General Description

The AP3606 and AP3607 are step-up DC-DC

converters based on 1x/1.5x charge pump and low

dropout current sink, which helps them maintain the

highest efficiency. The AP3606 is specially designed

to drive up to 4 WLEDs in backlight display while

the AP3607 is designed for 6 WLEDs.

These devices provide up to 20mA current for each

WLED. There are totally 16 steps of current control,

which is achieved through a digital pulse dimming

function on EN pin. Additionally, 1MHz high

switching frequency enables the use of small external

capacitors. Internal soft-start circuitry prevents

excessive inrush current during start-up and mode

transition.

The supply voltage ranges of AP3606 and AP3607

are from 2.7V to 5.5V which make them ideally suit

for applications powered by Li-ion battery.

These ICs are available in the tiny package of

QFN-3×3-16.

Dec. 2008 Rev. 1. 2

4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER

Figure 1. Package Type of AP3606/AP3607

QFN-3×3-16

Features

•

Applications

•

Drives up to 6 WLEDs at 20mA Each (AP3607)

16 Steps Brightness Control Using Pulse Signal

Dimming

Wide Operating Voltage Range: 2.7V to 5.5V

High Operating Frequency: 1MHz

Auto 1x/1.5x Charge Pump Mode Selection

Built-in Soft-start

Output Over Voltage Protection

Built-in UVLO

Built-in OTSD

Operating Temperature Range: -40°C to 85°C

Regulated Output Current with ±3% Matching

Drives up to 4 WLEDs at 20mA Each (AP3606)

Mobile Phone

PDA

MP3/4

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

AP3606/AP3607

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