AS3675 Lighting Management Unit
Flexible lighting management unit with charge pump, DC-DC, 13 current sinks
Features
- High-efficiency DC-DC step-up converter
- High-efficiency high-power charge pump
- 13 fully programmable current sinks (8-bit)
- PWM generation and LED pattern generator
Benefits
- Up to 16V/55mA (or 25V/35mA) for white LEDs
- Output current up to 300mA/500mA pulsed
- Low voltage and 3 high voltage current sinks
- Autonomous logarithmic up/down dimming
Product parameters
| # of Current Sinks [HV] | 3 |
|---|---|
| - [LV] | 10 |
| CP [Max. I (mA)] | 300 |
| DC-DC [Max. I (mA)] | Controller |
| Max. Vled [V] | Controller |
| Features [LDOs (#)] | 1 |
| - [Auto ALS] | |
| - [DLS] | |
| - [RGB Pattern] | Yes |
| - [Dimming] | Yes |
| - [Auto-In] | Yes |
| - [LED Test] | Yes |
| Flash [Support] | Yes |
| - [Max. I (mA)] | 300 |
| Package | WL-CSP30 (3x2.5)-0.5 |
General Description
The AS3675 is a highly-integrated CMOS power and lighting management unit for mobile phones. The AS3675 incorporates one DC-DC step-up converter for white backlight LEDs, one high-power charge pump, one analog-to-digital converter and 13 current sinks. The RGB and white LEDs can be controlled and synchronized by an audio input.
This product suits for the following applications:
- Mobile phones
- Portable DVD / TV player
- Portable learning toys
- Portable navigation devices
- Portable medical consumer devices
Resources
| Type | Description | Language | |
|---|---|---|---|
| Software | Install CD | English |
Technical Documents
| Type | Description | Language | |
|---|---|---|---|
| Block Diagram | AS3675 Block Diagram | English | |
| Datasheet | Document version 1v3 | English |
