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Product Detailed Parameters
- Description：IC LED DRVR CTRL PWM 60MA 28SOIC
- 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：12
- Voltage - Supply (Min)：5V
- Voltage - Supply (Max)：28V
- Voltage - Output：-
- Current - Output / Channel：60mA
- Frequency：-
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- 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 MP3389EY-LF-Z is a boost controller designed for driving white LED arrays in large LCD panel backlights. It features twelve internal current sources to drive up to twelve LED strings with high matching precision of 2.5%. The device operates within an input voltage range of 5V to 28V and supports adjustable switching frequencies via external resistors. It utilizes a fixed-frequency current control mode and includes comprehensive protection mechanisms such as overvoltage, undervoltage lockout, and thermal shutdown.
Feature Summary
- Integrates twelve internal current sources for balanced LED string regulation
- Supports PWM or DC input burst dimming modes
- Includes multiple protection functions against faults
- Features low average feedback voltage for improved efficiency
Applications
- Large LCD panel backlighting systems
- White LED array drivers
- High-efficiency lighting solutions
Procurement Notes
Verify the specific suffix EY corresponds to the SOIC-28 package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design compatibility with the required operating temperature range and electrical specifications defined in the datasheet.
Selection Notes
Select this component for applications requiring precise current balancing across multiple LED strings. The fixed frequency architecture simplifies filter design compared to variable frequency alternatives. Consider the thermal performance requirements given the power dissipation characteristics in dense PCB layouts.
Part Context
This part belongs to the MP3389 series of WLED controllers from Monolithic Power Systems. It is specifically engineered for high-channel-count backlighting applications where uniformity and efficiency are critical. The series offers various package options including TSSOP and SOIC configurations.
Replacement Considerations
MP3389EF-LF-Z is a confirmed substitute offering identical functionality in a TSSOP-28 package. Verify pin-to-pin compatibility and thermal pad requirements before substitution.
