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Product Detailed Parameters
- Description：IC LED DRIVER CTRLR PWM 28SOIC
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：8
- Voltage - Supply (Min)：9V
- Voltage - Supply (Max)：40V
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：785kHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Grade：-
- Qualification：-
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Overview
The MP3373GY-Z is an 8-channel boost WLED controller manufactured by Monolithic Power Systems. It operates with a supply voltage range of 9V to 35V and delivers 350mA per channel. The device features a switching frequency of 785 kHz and a maximum duty cycle of 90%. It utilizes a SOIC-28 package and supports shutdown functionality. The controller includes phase-shift capabilities and external current sink BJT support for precise LED management.
Feature Summary
- Eight independent output channels for white LED arrays
- Integrated phase-shift function for improved thermal distribution
- Supports external current sink BJTs for flexible drive configurations
- Shutdown pin for power management control
Applications
- Smartphone display backlighting
- Tablet computer screens
- Portable media players
- Compact digital cameras
Procurement Notes
Verify the specific suffix and tape/reel specifications against the manufacturer's latest datasheet before ordering. Confirm that the SOIC-28 package dimensions match your PCB footprint requirements. Ensure compatibility with your system's input voltage range, which starts at 9V. Check RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when designing systems requiring multiple white LED strings from a single boost converter. It is suitable for applications needing high channel count without individual inductors. Consider the 785 kHz frequency for balancing efficiency and component size. Ensure the design accommodates the external BJT requirement if utilizing the phase-shift feature.
Part Context
This part belongs to the MP3373 series of WLED controllers from Monolithic Power Systems. It is designed specifically for mobile devices where space and power efficiency are critical. The series focuses on providing multi-channel drive capabilities in a compact form factor compared to discrete solutions.
Replacement Considerations
Consult MPS documentation for direct cross-references. Verify pin-to-pin compatibility if substituting with other 8-channel boost controllers. Ensure the replacement supports similar current ratings and operating voltage ranges.
