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Product Detailed Parameters
- Description：IC LED DRVR CTRLR PWM 20TSSOP
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tube
- Type：DC DC Controller
- Topology：Step-Up (Boost)
- Internal Switch(s)：No
- Number of Outputs：4
- Voltage - Supply (Min)：4.5V
- Voltage - Supply (Max)：33V
- Voltage - Output：80V
- Current - Output / Channel：300mA
- Frequency：100kHz ~ 900kHz
- Dimming：Analog, I2C, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：20-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The MP3385GF is a four-channel white LED controller from Monolithic Power Systems, designed for LCD panel backlighting. It utilizes a boost topology with an input voltage range of 4.5 V to 33 V and supports output voltages up to 80 V. The device delivers up to 300 mA per channel through open-drain outputs. Operating frequencies are adjustable between 100 kHz and 900 kHz. It features I2C interface control and PWM dimming capabilities. The component operates within a temperature range of -40°C to +125°C and is housed in a TSSOP-EP-20 package.
Feature Summary
- Four independent channels for driving white LED arrays
- I2C interface for digital configuration and control
- Supports PWM dimming for brightness adjustment
- Integrated boost converter topology
Applications
- LCD panel backlighting systems
- WLED array drivers for display modules
Procurement Notes
Verify the specific suffix (e.g., GF, GR) as it denotes package type or tape/reel specifications. Confirm current lifecycle status, as some variants may be marked as Not Recommended for New Designs. Ensure compatibility with existing PCB footprints and I2C bus configurations before procurement.
Selection Notes
Select based on required channel count and maximum output voltage needs. Verify that the operating frequency range aligns with external inductor selection constraints. Consider thermal performance requirements given the power dissipation limits in the specified package. Check for moisture sensitivity level requirements during assembly.
Part Context
This part belongs to the MP3385 series of LED lighting driver ICs. These devices are engineered for high-efficiency backlighting applications. The series typically integrates protection features and precise current regulation suitable for portable and industrial display technologies.
Replacement Considerations
MP3385GF-P is a documented variant with identical functional specifications but potentially different packaging or reel options. Verify pinout and electrical parameters match exactly before substitution.
