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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 24TSSOP
- 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-G is an automotive-grade boost-buck LED lamp driver IC manufactured by Microchip Technology. It operates as a standalone DC-DC controller supporting step-down (buck) and step-up (boost) topologies with PWM dimming capabilities. The device regulates output current from 20mA to 150mA via external resistors, eliminating the need for a microcontroller. Key electrical specifications include a supply voltage range of 5.3V to 40V, a maximum switching frequency of 800kHz, and a typical DC supply current of 2mA. It is housed in a 24-pin TSSOP package with a 4.4mm body width.
Feature Summary
- Standalone operation without requiring a microcontroller
- Configurable output current via external resistors
- Supports both buck and boost converter topologies
- Integrated PWM dimming control
Applications
- Automotive LED lamp driving
- High-side or low-side LED configurations
- Battery-powered lighting systems
Procurement Notes
Verify the component authenticity carefully due to reported high fake threat levels in the open market for this specific part number. Confirm the manufacturer marking matches Microchip Technology standards. Ensure the package type is 24-TSSOP and the temperature range meets automotive requirements (-40°C to +150°C). Check for tape and reel packaging consistency if applicable.
Selection Notes
Select this component when designing automotive lighting circuits that require flexible input voltage handling between 5.3V and 40V. It is suitable for applications needing precise current regulation up to 150mA without complex digital control interfaces. Consider the 800kHz switching frequency for passive component size optimization.
Part Context
This IC belongs to Microchip's automotive power management portfolio, specifically designed for LED illumination. It integrates the necessary control logic for buck-boost conversion, ensuring stable LED brightness despite varying battery voltages common in automotive environments.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source data. Consult official Microchip documentation for direct pin-to-pin replacements or functional equivalents.
