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Product Detailed Parameters
- Description：IC LED DRIVER LINEAR 40MA 24QFN
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Type：Linear
- Topology：-
- Internal Switch(s)：Yes
- Number of Outputs：12
- Voltage - Supply (Min)：2.7V
- Voltage - Supply (Max)：3.6V
- Voltage - Output：30V
- Current - Output / Channel：40mA
- Frequency：-
- Dimming：-
- Applications：Backlight, Signage
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：24-TQFN Exposed Pad
- Supplier Device Package：24-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The AS1122-BQFM is a linear LED driver IC manufactured by ams OSRAM AG, designed for applications requiring precise current regulation. It features twelve independent output channels, each capable of delivering up to 40mA of drive current. The device supports a supply voltage range from 2.7V to 3.6V and can handle output voltages up to 30V. Packaged in a compact 24-QFN (4x4mm) surface-mount format with exposed pads, it operates within a temperature range of -40°C to +85°C. This component is specifically engineered for backlighting and signage applications.
Feature Summary
- Provides twelve individually controllable linear output channels for precise LED current regulation
- Integrates internal switching capabilities within a linear driver topology
- Supports wide input voltage operation suitable for battery-powered systems
Applications
- LED backlighting modules
- Commercial signage displays
Procurement Notes
Verify component authenticity through authorized distribution channels due to the part's obsolete status. Confirm that the 24-QFN package dimensions match the design footprint. Ensure thermal management strategies account for the linear regulation method used in this specific driver IC.
Selection Notes
Select this component when a multi-channel linear solution is required for low-current LED arrays. Consider the 40mA per channel limit and the 30V maximum output voltage when designing the load circuit. Evaluate the 24-QFN package constraints for PCB layout and thermal dissipation requirements.
Part Context
This part belongs to the AS1122 family of LED drivers from ams OSRAM. It serves as a specialized solution for managing multiple LEDs in display applications where linear control is preferred. The BQFM suffix indicates specific packaging or tape-and-reel configuration details defined by the manufacturer.
Replacement Considerations
The datasheet lists the AS1122-BQFM as obsolete. No public confirmed substitute part numbers are provided in the available documentation. Designers should consult the manufacturer for end-of-life notifications or alternative recommendations.
