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Product Detailed Parameters
- Description：BUCK LED LAMP DRIVER IC
- Series：-
- Mfr：Microchip Technology
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Down (Buck), Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：5.3V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：100kHz ~ 800kHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：24-TSSOP
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The AT9932TS-GVAO is an automotive-grade DC-DC controller designed for LED lamp applications. It integrates a boost-buck topology to regulate current in high-power LEDs, ensuring stable brightness under varying input voltages. The device supports PWM dimming for precise control and operates within the AEC-Q100 qualification standards for automotive reliability. Packaged in a 24-TSSOP format, it offers a compact solution for integrating efficient power management into vehicle lighting systems.
Feature Summary
- Integrates boost and buck converter topologies for versatile LED drive capabilities
- Supports PWM dimming for accurate light intensity control
- Qualified for automotive environments under AEC-Q100 standards
Applications
- Automotive headlamp modules
- Vehicle interior LED lighting systems
- High-power LED driver circuits requiring wide input voltage ranges
Procurement Notes
Verify the specific suffix 'GVAO' matches your design requirements, as it denotes automotive grade and lead-free status. Confirm package dimensions against your PCB footprint. Ensure supply chain sources provide valid traceability documentation for automotive components. Check for RoHS compliance certificates if required by your manufacturing process.
Selection Notes
Select this component when designing automotive lighting that requires both step-up and step-down voltage regulation from a single IC. It is suitable for applications needing robust performance across temperature variations typical of vehicle environments. Consider the 24-TSSOP package size for space-constrained designs. Evaluate thermal management needs based on the expected LED load current.
Part Context
This part belongs to Microchip's AT99xx series of LED drivers, specifically tailored for automotive use. It complements other non-automotive variants like the AT9932TS-G by offering enhanced reliability features. The series focuses on simplifying LED power supply designs through integrated control loops and protection mechanisms.
Replacement Considerations
Direct substitutes include other AEC-Q100 qualified boost-buck LED drivers from Microchip or competitors. Verify pin compatibility and electrical specifications before swapping. Non-automotive grades may lack the necessary environmental testing data for vehicle integration.
