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MP7200 6-42V, 1.2A, 2.3MHz Buck-Boost or 3A Buck Synchronous LED Driver QFN-19
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pMPS MP7200 — Buck-Boost or 3A Buck Synchronous LED Driver, 6-42V input, 1.2 A output, QFN-19./p
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MP7200 6-42V, 1.2A, 2.3MHz Buck-Boost or 3A Buck Synchronous LED Driver QFN-19
The MPS MP7200 is a Buck-Boost or 3A Buck Synchronous LED Driver. It operates from a 6 V to 42 V input, is rated for 1.2 A and switches at 2.3 MHz. It is supplied in a QFN-19 package.
The MP7200 is a high-frequency, constant- current, buck-boost LED driver with integrated power MOSFETs.
Key Specifications
| Part Number | MP7200 |
| Function | Buck-Boost or 3A Buck Synchronous LED Driver |
| Input Voltage | 6 V to 42 V |
| Current Rating | 1.2 A |
| Switching Frequency | 2.3 MHz |
| Interface | PWM |
| Package | QFN-19 |
| Ordering Codes | MP7200 |
Features
- Wide 6V to 42V Operating Input Range
- 44mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode Operation
- Configurable 1.2A Buck-Boost or 3A Buck Mode
- Configurable LED Current without Current- Sense Resistor
- Default 2.3MHz Switching Frequency for Buck Mode and 1.15MHz Switching Frequency for Buck-Boost Mode with Spread Spectrum
- PWM Dimming (Dimming Frequency from 100Hz to 2kHz)
- Internal 500Hz Two-Step Dimming with Configurable Duty Cycle
- Fault Indication for LED Short (to GND and Battery) and Open, Output Over-Voltage, and Thermal Shutdown
- Over-Current Protection (OCP) with Latch- Off Mode
Typical Application Circuit
Applications
- Turn Indicator Lights
- Daytime Running Lights (DRLs)
- Fog Lights
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 MP7200 support?
6 V to 42 V. The rated output is 1.2 A.
Which package and ordering codes apply to the MP7200?
QFN-19; order codes include MP7200.
What are the defining features of the MP7200?
Wide 6V to 42V Operating Input Range 44mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs
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