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Product Detailed Parameters
- Description：IC LED DRIVER RGLTR 400MA 24QFN
- 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：6
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：5.5V
- Voltage - Output：5.3V
- Current - Output / Channel：400mA (Flash)
- Frequency：1MHz
- Dimming：-
- Applications：Backlight
- Operating Temperature：-30°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-VFQFN Exposed Pad
- Supplier Device Package：24-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The AS3683-T is an LED driver IC manufactured by ams-OSRAM USA INC. It features six outputs and integrates a DC-DC regulator with a switched capacitor charge pump. The device supports dimming capabilities and provides a maximum output current of 400mA for flash applications. It is housed in a compact 24-QFN (4x4) package, designed for efficient power management in lighting systems.
Feature Summary
- Integrates a DC-DC regulator with a switched capacitor charge pump for efficient voltage conversion
- Provides six independent LED outputs for multi-channel lighting control
- Supports dimming functionality for adjustable brightness levels
- Delivers up to 400mA output current suitable for flash applications
Applications
- LED lighting systems requiring multi-channel drive capability
- Flash illumination circuits in mobile or portable devices
- Applications utilizing switched capacitor charge pump topologies
- Compact lighting modules where small form factor is critical
Procurement Notes
Verify the exact part number suffix against official ams-OSRAM documentation to ensure correct binning and temperature range specifications. Confirm that the 24-QFN footprint matches your PCB design requirements. Check for any specific ordering codes related to tape and reel quantities if applicable. Ensure compatibility with your system's input voltage range before procurement.
Selection Notes
Select this component when a high-integration solution with six channels is required. The integrated charge pump reduces external component count compared to inductor-based solutions. Consider the 400mA current limit for load matching. Evaluate the thermal performance within the 4x4mm QFN package for your specific enclosure constraints.
Part Context
This part belongs to the ams-OSRAM LED driver portfolio, specifically targeting applications needing multiple regulated outputs from a single IC. It complements other drivers in the series by offering a balance between channel count and integration level. The technology leverages switched capacitor architectures common in modern portable electronics.
Replacement Considerations
Check for direct pin-to-pin replacements within the same family. Verify electrical parameters such as output current limits and operating voltage ranges match exactly. Ensure the replacement package type is identical to avoid PCB redesign.
