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Product Detailed Parameters
- Description：IC LED DRVR RGLTR PWM 20MA 24QFN
- 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)：4.3V
- Voltage - Supply (Max)：25V
- Voltage - Output：50V
- Current - Output / Channel：20mA
- Frequency：1.25MHz
- Dimming：PWM
- Applications：Backlight
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：24-VFQFN Exposed Pad
- Supplier Device Package：24-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The MP3388SGR-Z is an 8-channel white LED driver IC from Monolithic Power Systems, utilizing a boost topology. It operates with an input voltage range of 4.3 V to 25 V and generates a maximum output voltage of 55 V. The device features selectable switching frequencies of 625 kHz or 1.25 MHz and is housed in a QFN-24 package. It supports PWM dimming and includes protections for open/short LEDs, overvoltage, undervoltage lockout, and overtemperature.
Feature Summary
- Provides balanced current driving for eight independent WLED strings with high matching precision
- Supports flexible brightness control via external PWM or DC input burst-PWM dimming modes
- Integrates comprehensive protection mechanisms including LED open/short detection and thermal shutdown
Applications
- LCD panel backlighting systems
- Large screen display white LED arrays
- Portable electronic device illumination
Procurement Notes
Verify the specific suffix 'SGR' against official MPS documentation to confirm pinout compatibility and electrical ratings, as variations exist within the MP3388 family. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement. Ensure the selected component matches the required operating temperature range for the target application environment.
Selection Notes
Select this component when designing LCD backlight circuits requiring eight independent LED channels with precise current balancing. The choice depends on the need for a compact QFN-24 footprint and support for both 625 kHz and 1.25 MHz switching frequencies. Evaluate the 55 V output capability against the total forward voltage of the LED string configuration to ensure adequate headroom for efficient operation.
Part Context
This part belongs to the MP3388 series of LED lighting drivers designed by Monolithic Power Systems. The series focuses on high-efficiency power management for white LED applications in portable electronics. The MP3388SGR-Z represents a specific variant within this family, distinguished by its packaging and specific electrical characteristics tailored for dense PCB layouts.
Replacement Considerations
Officially recommended alternatives for new designs include the MP3388S series. Verify functional equivalence and pin compatibility before substitution.
