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MP4603 12V White LED Driver SOIC16
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pMPS MP4603 — White LED Driver, 12V input, SOIC16./p
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MP4603 12V White LED Driver SOIC16
The MPS MP4603 is a White LED Driver. It accepts up to 12 V at the input. It is supplied in a SOIC16 package.
Key Specifications
| Part Number | MP4603 |
| Function | White LED Driver |
| Input Voltage | up to 12 V |
| Interface | PWM |
| Peak Efficiency | 99.5% |
| Package | SOIC16 |
| Ordering Codes | MP4603 |
Features
- Novel Power-Leverage-Control Technology
- Unique Step-Up/Down Operation
- Up to 99.5% Efficiency
- 0.5Ω Internal Power MOSFET
- Switching Frequency Synchronization
- Over 1:1000 Dimming Ratio
- Separate Analog and PWM Dimming
- ±5% 200mV Reference Voltage
- 10μA Shutdown Mode
- Cycle-by-Cycle Over-Current Protection
Typical Application Circuit
Applications
- Large LCD Panels Backlighting
Design Notes
- Channel-to-channel current matching sets backlight uniformity; check the matching spec at the current you will actually run.
- In boost topologies the OVP threshold must clear the worst-case forward voltage of the longest string, including temperature and binning spread.
- Keep PWM dimming above 200 Hz to stay clear of visible flicker, and away from the audio band if the product has a speaker.
- Size the inductor and output capacitor for the string current ripple, not the total LED current.
Common Questions
What input voltage does the MP4603 support?
Up to 12 V.
Which package and ordering codes apply to the MP4603?
SOIC16; order codes include MP4603.
What are the defining features of the MP4603?
Novel Power-Leverage-Control Technology Unique Step-Up/Down Operation
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