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MPQ2489 6-55V, 1A Step Down White LED Driver QFN6
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pMPS MPQ2489 — Step Down White LED Driver, 6-55V input, 1 A output, QFN6, AEC-Q100./p
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MPQ2489 6-55V, 1A Step Down White LED Driver QFN6
The MPS MPQ2489 is a Step Down White LED Driver. It operates from a 6 V to 55 V input and is rated for 1 A. It is supplied in a QFN6 package. The part is AEC-Q100 qualified.
The MPQ2489 is a high efficiency step-down converter designed in continuous current mode for driving the high brightness Light Emitting Diodes (LED) from wide input voltage 6V–55V.
Key Specifications
| Part Number | MPQ2489 |
| Function | Step Down White LED Driver |
| Input Voltage | 6 V to 55 V |
| Current Rating | 1 A |
| Interface | PWM |
| Package | QFN6 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ2489 |
Features
- Guaranteed Industrial/Automotive Temp
- Internal 60V MOSFET
- Wide 6V to 55V Input Range
- 1A Output Current
- High Efficiency (>95%)
- Hysteresis Control
- PWM & Analog Dimming
- 1000:1 PWM Dimming Resolution
- Thermal Shutdown
- Inherent Open LED Protection
Typical Application Circuit
Applications
- Low Voltage Halogen Replacement
- Low Voltage General Illumination
- Automotive/Decorative LED Lighting
- Signs/Emergency 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 MPQ2489 support?
6 V to 55 V. The rated output is 1 A.
Which package and ordering codes apply to the MPQ2489?
QFN6; order codes include MPQ2489.
What are the defining features of the MPQ2489?
Guaranteed Industrial/Automotive Temp Internal 60V MOSFET
Is the MPQ2489 qualified for automotive designs?
Yes — it is AEC-Q100 qualified. Confirm the grade against the qualification summary in the datasheet before specifying it on a safety-related rail.
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