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Product Detailed Parameters
- Description：IC LED DRV CTRL PWM 350MA 16SOIC
- 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)：4.5V
- 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：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SOIC
- Grade：-
- Qualification：-
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Overview
The MP3398LGS-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 4.5 V to 28 V and supports a maximum output current of 350 mA per channel. The device utilizes a fixed switching frequency of 540 kHz with peak current mode control. It features SOIC-16 packaging and functions across a temperature range of -40°C to +125°C.
Feature Summary
- Supports independent analog and PWM dimming modes for flexible brightness control
- Provides cascading capability by sharing a single sense power supply across multiple ICs
- Includes comprehensive protection mechanisms such as over-temperature, over-voltage, and open/short LED detection
Applications
- Large LCD panel backlight systems
- White LED array driving circuits
- USB-powered display applications
Procurement Notes
Verify the specific suffix Z indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.
Selection Notes
Select this component for designs requiring four independent LED channels with high current matching precision. It is suitable for applications needing lower input voltage thresholds compared to standard variants. Consider the SOIC-16 package constraints and thermal dissipation requirements during layout design.
Part Context
This part belongs to the MP3398L series, which offers a lower minimum input voltage compared to the MP3398A series. This characteristic makes it particularly suitable for USB-powered applications where input voltage stability may vary. The series maintains similar performance metrics regarding current regulation and protection features.
Replacement Considerations
MP3398AGS-Z shares similar functional characteristics but operates with a higher minimum input voltage starting at 5 V. Verify input voltage requirements before substitution to ensure compatibility with the system power source.
