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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 45MA 24TQFN
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：-
- Number of Outputs：6
- Voltage - Supply (Min)：3V
- Voltage - Supply (Max)：25V
- Voltage - Output：45V
- Current - Output / Channel：45mA
- Frequency：24kHz ~ 27.5kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：24-WFQFN Exposed Pad
- Supplier Device Package：24-TQFN (4x4)
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The MPQ3387LGRT-Z is an industrial-grade, step-up white LED driver IC from Monolithic Power Systems. It features a boost topology with six independent current sources, supporting up to 45mA per string. The device operates within a 3V to 25V input voltage range and generates outputs up to 45V. It utilizes a fixed 1.25MHz switching frequency and employs TQFN-24 (4x4mm) packaging. The component supports PWM dimming and includes protection mechanisms such as OCP, OVP, and OTP.
Feature Summary
- Six independent high-side current sources for precise LED string regulation
- Integrated boost converter generating up to 45V output voltage
- Hybrid dimming capability combining analog and PWM control modes
- Comprehensive protection suite including overcurrent, overvoltage, and thermal shutdown
Applications
- Backlight drivers for medium-to-large LCD panels in tablets
- White LED array illumination for laptop displays
- Automotive-grade lighting systems requiring AEC-Q100 compliance variants
Procurement Notes
Verify the specific suffix 'Z' against the manufacturer's latest documentation to confirm lead time and availability status, as distribution channels may list limited stock or special order conditions. Ensure the ordering part number matches the exact package and temperature grade required for the target application design.
Selection Notes
Select this component when designing systems requiring six-channel LED driving with a wide input voltage range of 3V to 25V. It is suitable for applications needing hybrid dimming to eliminate audible noise through frequency shifting. Consider the TQFN-24 package constraints and verify that the 1.25MHz fixed frequency aligns with EMI requirements.
Part Context
This part belongs to the MPQ3387 series of LED lighting driver ICs designed for WLED applications. It shares architectural similarities with the MP3387L but carries specific automotive or industrial qualification markings depending on the suffix. The series is engineered for portable electronics and display backlighting solutions.
Replacement Considerations
MP3387LGRT-P: Industrial grade alternative with similar specifications. MP3387LGRT-Z: Direct equivalent in the same series. MPQ3386DR-AEC1-LF-Z: Automotive grade variant with 6 channels but different input voltage minimum of 4.5V.
