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Product Detailed Parameters
- Description：IC LED DRVR CTRLR PWM 28TSSOP
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：4
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：24V
- Voltage - Output：-
- Current - Output / Channel：350mA
- Frequency：150kHz ~ 590kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The MP3378EGF-Z is a four-channel white LED controller and synchronous buck converter manufactured by Monolithic Power Systems. It operates within an input voltage range of 5 V to 24 V, supporting a maximum output current of 350 mA per channel. The device functions at a switching frequency of 530 kHz and utilizes a 28-TSSOP-EP package. It supports both analog and PWM dimming methods for backlight applications.
Feature Summary
- Integrates a high-efficiency synchronous buck converter with four independent LED drive channels.
- Supports combined analog and pulse-width modulation (PWM) dimming control schemes.
- Includes open LED protection mechanisms to ensure system reliability during fault conditions.
Applications
- LCD panel backlighting for tablets
- LCD panel backlighting for notebook computers
- Virtual reality display backlighting systems
Procurement Notes
Verify the specific suffix designation against the manufacturer's official documentation to confirm pinout compatibility and thermal performance characteristics. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into the assembly process to ensure adherence to manufacturing standards.
Selection Notes
Select this component for designs requiring a single-inductor multiple-output topology to reduce bill of materials count. Ensure the application input voltage remains within the specified 5 V to 24 V range. Verify that the required LED string configuration aligns with the four-channel output capability and the 350 mA current limit.
Part Context
This part belongs to the MP3378 series of LED lighting driver ICs from Monolithic Power Systems. It is designed specifically for driving white LED arrays in portable electronic devices. The series focuses on providing efficient power conversion and precise current regulation for display backlighting applications.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official documentation for recommended alternatives or updated revisions.
