Datasheet Details
| Part number | A8437 |
|---|---|
| Manufacturer | Allegro MicroSystems |
| File Size | 654.30 KB |
| Description | Mobile Phone Xenon Photoflash Capacitor Charger |
| Datasheet |
 A8437 Datasheet
|
|
|
General Description
The Allegro® A8437 Xenon photoflash charger IC is designed to meet the needs of ultra-low power, small form factor cameras, particularly camera-phones.
The charge current time is adjustable by setting the charge current limit from 0.4 to 1.2 A maximum.
Key Features
- Low quiescent current draw (0.1 μA in shutdown mode).
- Primary-side output voltage sensing; no resistor divider required.
- User-adjustable current limit from 0.4 to 1.2 A.
- 1.1 V logic (VHI(min)) compatibility.
- Integrated IGBT driver with separate sink and source (CG package) or common sink/source (EJ package).
- Flash dual trigger with interlock for increased noise immunity.
- Optimized for mobile phone, 1-cell Li+ battery.