AS1170 2-channel LED and VCSEL driver IC
Driver with integrated boost converter and high output currents
特点
- High efficiency 4 MHz fixed frequency DCDC boost converter
- Independent channel control
- High output current
- Channels can be combined for single output
- Integrated protection functions
- Automatic current adjustment for low battery voltage
- 13 balls WLCSP 2.25mm x 1.5mm x 0.6mm
优势
- Very compact/small 1µH inductor due to fast switching frequency
- Can drive 2 channels independently with up to 1000mA each or 2000mA combined
- Integrated circuit protection
- Automatic battery lifetime extension
- Tiny footprint and BOM for applications with space constraints
产品参数
| Output [#] | 2 |
|---|---|
| LED Current per Output [mA] | 1000 |
| Features | DCDC boost, I2C, INT |
| Error Detection | Yes |
| Read-Back | Yes |
| LED-to-LED Matching [%] | 7 |
| Supply Voltage [V] | 2.7 - 4.4 |
| Package | WLCSP 2.25mm x 1.5mm x 0.6mm |
综述
The AS1170 is a 2-channel LED/VCSEL driver with integrated boost converter. It can support up to 5.5V output voltage and each channel can support 1000mA output current. Currents can be combined to a total of 2000mA and adjusted using 31.25kHz PWM operation. AS1170 features integrated protection functions against overtemperature, over- or under voltage and open of shorted LED pins. The device has an I2C interface with 2 adresses, selectable via an I2C select pin. The 13 balls WLCSP makes this chip a good fit wherever high output currents and a tiny footprint are needed.
本产品适用于以下应用:
- Flash / torch / video light for smartphones, feature-phones
- 3D sensing – Active Stereo Vision / Structured Light
- Handheld scanners
- Safety signage
技术文档
| 类别 | 描述 | 语言 | ||
|---|---|---|---|---|
| Datasheet | AS1170 datasheet | English |
其他信息
| 类别 | 描述 | 语言 | ||
|---|---|---|---|---|
| Block Diagram | AS1170 block diagram | |||
| Image | AS1170 product image (top perspective) |
