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 |
|---|---|
| CP [Max. I (mA)] | 300 |
| DC-DC [Max. I (mA)] | Controller |
| Max. Vled [V] | Controller |
| Features [LDOs (#)] | 1 |
| Flash [Support] | Yes |
| 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.
Not Recommended for New Designs
ams AG is discontinuing production of this device.
This product suits for the following applications:
- Mobile phones
- Portable DVD / TV player
- Portable learning toys
- Portable navigation devices
- Portable medical consumer devices
Technical Documents
| Type | Description | Language | |
|---|---|---|---|
| Datasheet | Document version 1v3 | English | |
| Application Note | Selection Guide | English |
Notifications
| Type | Description | Language | |
|---|---|---|---|
| EoL Notification | AS252x, AS36xx, AS37xx_AS3956 (issued 2019-Sep) | English |
Other Information
| Type | Description | Language | |
|---|---|---|---|
| Block Diagram | AS3675 Block Diagram | English |
