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MP7230 6-42V, 1.2A, 410kHz Synchronous Buck-Boost or 3A Buck Infrared LED Driver QFN-19
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pMPS MP7230 — Synchronous Buck-Boost or 3A Buck Infrared LED Driver, 6-42V input, 1.2 A output, QFN-19./p
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MP7230 6-42V, 1.2A, 410kHz Synchronous Buck-Boost or 3A Buck Infrared LED Driver QFN-19
The MPS MP7230 is a Synchronous Buck-Boost or 3A Buck Infrared LED Driver. It operates from a 6 V to 42 V input, is rated for 1.2 A and switches at 410 kHz. It is supplied in a QFN-19 package.
The MP7230 is a fixed-frequency, constant current buck-boost LED driver with integrated power MOSFETs.
Key Specifications
| Part Number | MP7230 |
| Function | Synchronous Buck-Boost or 3A Buck Infrared LED Driver |
| Input Voltage | 6 V to 42 V |
| Current Rating | 1.2 A |
| Switching Frequency | 410 kHz |
| Interface | PWM |
| Package | QFN-19 |
| Ordering Codes | MP7230 |
Features
- Built for a Wide Range of IR LED Applications: o Wide 6V to 42V Operating Input Range o PWM Dimming Frequency: 10Hz to 2kHz o Compatible with 30FPS, 60FPS, and 120FPS Dimming
- High Performance for Improved Thermals: o Configurable LED Current without Sensing Resistor o 44mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs o High-Efficiency Synchronous Mode Operation
- Optimized for EMC/EMI: o Default 410kHz Switching Frequency with Spread Spectrum o EMI Reduction Techniques
Typical Application Circuit
Applications
- Infrared (IR) LED Drivers
- Infrared (IR) Illumination for Cameras
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 MP7230 support?
6 V to 42 V. The rated output is 1.2 A.
Which package and ordering codes apply to the MP7230?
QFN-19; order codes include MP7230.
What are the defining features of the MP7230?
Built for a Wide Range of IR LED Applications: o Wide 6V to 42V Operating Input Range o PWM Dimming Frequency: 10Hz to 2kHz o Compatible with 30FPS, 60FPS, and 120FPS Dimming High Performance for Improved Thermals: o Configurable LED Current without Sensing Resistor o 44mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs o High-Efficiency Synchronous Mode Operation
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