BCD Semiconductor Manufacturing Limited AP3615
The AP3615 is a step-up DC-DC converter based on 1x/1.5x charge pump and low dropout current sink, which helps it maintain the highest efficiency. The AP3615 is specially designed to drive up to 5 WLEDs in backlight display. The AP3615 provides up to 20mA current for each WLED.| Part No. | AP3615 |
|---|---|
| Datasheet | AP3615 Download |
| Manufacturer |  BCD Semiconductor Manufacturing Limited |
| Description | 5 CHANNEL CHARGE PUMP CURRENT SINK |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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 of AP3615 ranges from 2.8V to 5.5V which make it ideally suit for applications powered by Li-ion battery. The AP3615 is available in the tiny package of QFN-3×3-16.FEATURES
● Regulated Output Current with ±3% Matching● Drives up to 5 WLEDs at 20mA Each
● 16 Steps Brightness Control Using Pulse Signal Dimming
● Wide Operating Voltage Range: 2.8V 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
APPLICATIONS
● Mobile Phone● PDA
● MP3/4 Jan. 2013 Rev. 1. 3 QFN-3×3-16 Figure 1. Packag...
