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MP4008 9-28V High-Current Accuracy WLED Controller SOIC
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pMPS MP4008 — High-Current Accuracy WLED Controller, 9-28V input, SOIC./p
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MP4008 9-28V High-Current Accuracy WLED Controller SOIC
The MPS MP4008 is a High-Current Accuracy WLED Controller. It operates from a 9 V to 28 V input. It is supplied in a SOIC package.
The MP4008 is a current-mode controller designed for driving high brightness light emitting diodes (LEDs) with a wide input voltage from 9V to 28V.
Key Specifications
| Part Number | MP4008 |
| Function | High-Current Accuracy WLED Controller |
| Input Voltage | 9 V to 28 V |
| Interface | PWM |
| Package | SOIC |
| Ordering Codes | MP4008 |
Features
- Constant Current WLED Driver
- 280mV Feedback Voltage with ±1.8% Accuracy
- 9V to 28V Input Voltage
- Leading Edge Blanking for Current Sense
- Frequency Fixed to 180kHz
- Fast PWM Dimming
- Soft Start
- Over-Voltage Protection
- Short LED Protection
- Short Output Protection
Typical Application Circuit
Applications
- LCD Backlighting
- DC/DC LED Driver
- General Illumination
- Industrial Lighting
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 MP4008 support?
9 V to 28 V.
Which package and ordering codes apply to the MP4008?
SOIC; order codes include MP4008.
What are the defining features of the MP4008?
Constant Current WLED Driver 280mV Feedback Voltage with ±1.8% Accuracy
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