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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM TSOT23-8
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：DC DC Regulator
- Topology：Step-Down (Buck)
- Internal Switch(s)：Yes
- Number of Outputs：1
- Voltage - Supply (Min)：4V
- Voltage - Supply (Max)：36V
- Voltage - Output：0.2V ~ 36V
- Current - Output / Channel：1.5A
- Frequency：400kHz
- Dimming：PWM
- Applications：-
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：SOT-23-8 Thin, TSOT-23-8
- Supplier Device Package：TSOT-23-8
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MPQ4425BGJ-AEC1-Z is an automotive-grade, high-efficiency synchronous step-down LED driver manufactured by Monolithic Power Systems. It operates with a fixed switching frequency of 400 kHz and supports an input voltage range from 4 V to 36 V. The device delivers a regulated output current of up to 1.5 A through a single channel housed in a TSOT-23-8 package. It features PWM dimming control and includes integrated protections against short circuits and thermal overload. Qualified under AEC-Q100 standards, it functions reliably within a junction temperature range of -40°C to +125°C.
Feature Summary
- Synchronous buck topology for high efficiency
- PWM dimming capability for brightness control
- Integrated short circuit and thermal protection
Applications
- Automotive LED lighting systems
- General LED illumination drivers
- DC-DC converter applications requiring constant current output
Procurement Notes
Verify the specific suffix 'Z' indicates tape and reel packaging configuration. Confirm AEC-Q100 qualification status aligns with target automotive reliability requirements. Ensure the TSOT-23-8 footprint matches PCB layout constraints. Check RoHS compliance documentation for environmental regulations.
Selection Notes
Select this component when a compact solution is required due to the small TSOT-23-8 package. Choose over higher-frequency variants if lower electromagnetic interference is preferred at 400 kHz. Consider the 1.5 A current limit for moderate power LED strings. Verify input voltage compatibility with the 4 V to 36 V operating range.
Part Context
This part belongs to the MPQ4425 family of synchronous step-down LED drivers. It shares core functionality with other variants like the MPQ4425AGQBE but differs in package type and switching frequency. The BGJ suffix specifically denotes the TSOT-23-8 package option within the broader MPQ4425 series designed for automotive and industrial LED applications.
Replacement Considerations
MPQ4425AGQBE-AEC1-Z offers similar electrical performance but uses a QFN-13 package with a 2.2 MHz frequency. MPQ4425MGQBE-AEC1-Z provides dual channels in a QFN-13 package. Direct pin-to-pin replacement is not possible due to package differences; redesign is required.
