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Product Detailed Parameters
- Description：IC LED DRV CTRL PWM 350MA 20SOIC
- 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：4
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：28V
- Voltage - Output：-
- Current - Output / Channel：350mA
- Frequency：540kHz
- Dimming：Analog, PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SOIC
- Grade：-
- Qualification：-
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Overview
The MP3398AGY-Z is a four-channel boost white LED controller from Monolithic Power Systems, designed for large LCD panel backlighting. It operates within an input voltage range of 5 V to 28 V and delivers up to 350 mA per channel. The device utilizes a fixed switching frequency of 540 kHz with peak current mode control. It features independent PDIM and ADIM pins for analog and PWM dimming. The component is housed in a TSSOP-16-EP package and supports cascading multiple units via a shared power supply.
Feature Summary
- Supports independent analog and PWM dimming modes
- Provides high current matching accuracy between channels
- Includes comprehensive protection mechanisms such as OCP, OTP, and UVLO
Applications
- Large LCD panel backlighting
- White LED array driving
- TV and monitor display systems
Procurement Notes
Verify the specific suffix against official MPS documentation to confirm pinout compatibility and thermal pad requirements. Ensure the selected variant matches the required operating temperature range and packaging style for your PCB layout. Cross-reference the datasheet revision date to validate feature availability.
Selection Notes
Select this component for applications requiring precise current regulation across multiple LED strings. Consider the TSSOP-16-EP package for improved thermal dissipation compared to standard SOIC options. Evaluate the need for cascading capabilities if higher channel counts are required beyond the integrated four channels.
Part Context
This part belongs to the MP3398A series of LED lighting drivers. It shares core functionality with variants like MP3398AGF-Z but differs in package type. The series is engineered for high-efficiency boost conversion in portable and stationary display backlighting solutions.
Replacement Considerations
MP3398AGF-Z offers identical electrical specifications in a TSSOP-16-EP package. MP3398BGF-Z provides overcurrent latch-off protection instead of hiccup mode. Verify pin-to-pin compatibility before substitution.
