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Product Detailed Parameters
- Description：IC LED DRV RGLTR PWM 20MA 28SOIC
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- Type：DC DC Regulator
- Topology：Step-Up (Boost)
- Internal Switch(s)：Yes
- Number of Outputs：8
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：25V
- Voltage - Output：50V
- Current - Output / Channel：20mA
- Frequency：1.25MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-20°C ~ 85°C (TA)
- 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 MP3388EY-LF-Z is an LED lighting driver IC manufactured by Monolithic Power Systems. It features a boost topology with eight output channels designed for white LED arrays. The device operates within an input voltage range of 4.5 V to 25 V and generates a maximum output voltage of 50 V. It functions at a switching frequency of 1.25 MHz and supports PWM dimming. The component is housed in a 28-SOIC package and is rated for operation between -20°C and +85°C.
Feature Summary
- Provides balanced current driving for eight independent WLED strings
- Supports flexible backlight brightness control via PWM or DC input
- Integrates comprehensive protection mechanisms including overvoltage, undervoltage lockout, and thermal shutdown
Applications
- Large LCD panel backlighting systems
- White LED array drivers
- High-efficiency LED lighting solutions
Procurement Notes
Verify the NRND status before procurement, as this component is not recommended for new designs. Confirm that the SOIC-28 package aligns with existing PCB footprints. Ensure compatibility with the specified 4.5V to 25V input range and 1.25MHz switching frequency requirements for your specific application circuit.
Selection Notes
Select this part when eight-channel current balancing is required for large displays. The 28-SOIC package offers a surface-mount solution suitable for standard assembly processes. Consider the 1.25MHz frequency for optimizing external component size while maintaining efficiency within the specified operating temperature range.
Part Context
This component belongs to the MP3388 series from Monolithic Power Systems. It is specifically engineered for high-efficiency power management in display applications. The device integrates multiple current sources into a single controller to simplify the design of complex LED backlighting architectures.
Replacement Considerations
Public documentation identifies MP3388S as the alternative for new designs. Verify pinout and electrical specifications against the original datasheet before substitution.
