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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR 1A 10DFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Switched Capacitor (Charge Pump)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：-
- Current - Output / Channel：1A (Flash)
- Frequency：1MHz
- Dimming：-
- Applications：Camera Flash
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-VFDFN Exposed Pad
- Supplier Device Package：10-DFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AS3685A is a high-performance LED lighting driver IC designed for mobile camera flash applications. It integrates a boost converter and charge pump to drive single high-power LEDs with precise current regulation. The device supports advanced dimming features and includes protection mechanisms for thermal and open-circuit conditions, ensuring reliable operation in compact smartphone designs.
Feature Summary
- Integrates boost converter and charge pump for efficient single-LED driving
- Provides precise constant current regulation for consistent flash brightness
- Includes comprehensive protection against over-temperature and open-load faults
Applications
- Smartphone camera flash systems
- Mobile device illumination modules
- Compact portable electronic lighting
Procurement Notes
Verify component authenticity through authorized channels due to end-of-life status. Confirm package variant and tape/reel specifications match design requirements. Review latest datasheet revisions for any pinout or electrical characteristic updates before finalizing procurement plans.
Selection Notes
Evaluate input voltage range and output current capabilities against target LED forward voltage. Ensure thermal management strategy aligns with the device's protection thresholds. Compare integration level against discrete solutions to optimize board space and bill of materials cost.
Part Context
This component belongs to the AS3685 family of LED drivers from ams OSRAM. It is specifically engineered for mobile backlighting and flash applications. The series offers varying output configurations and packaging options to suit different form factors.
Replacement Considerations
Check for direct substitutes within the AS3685 family such as the AS3685C-T. Verify functional compatibility regarding control interfaces and electrical parameters before transitioning to alternative part numbers.
