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MPQ2483A 4.5-55V, 2.5A Programmable Frequency LED Driver Available in AEC-Q100 SOIC14
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pMPS MPQ2483A — Programmable Frequency LED Driver Available in AEC-Q100, 4.5-55V input, 2.5 A output, SOIC14, AEC-Q100./p
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MPQ2483A 4.5-55V, 2.5A Programmable Frequency LED Driver Available in AEC-Q100 SOIC14
The MPS MPQ2483A is a Programmable Frequency LED Driver Available in AEC-Q100. It operates from a 4.5 V to 55 V input and is rated for 2.5 A. It is supplied in a SOIC14 package. The part is AEC-Q100 qualified.
The MPQ2483A is a 55V LED driver suitable for either step-down or inverting step-up and step- down applications.
Key Specifications
| Part Number | MPQ2483A |
| Function | Programmable Frequency LED Driver Available in AEC-Q100 |
| Input Voltage | 4.5 V to 55 V |
| Current Rating | 2.5 A |
| Interface | PWM |
| Package | SOIC14 |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ2483A |
Features
- 2.5A Maximum Peak Current
- Buck or Buck-Boost Modes
- Wide 4.5V to 55V Operating Input Range
- 0.28Ω Internal Power MOSFET Switch
- Analog and PWM Dimming
- 0.198V Reference Voltage
- 5μA Shutdown Mode
- Stable with Low ESR Capacitors
- Cycle-by-Cycle Over-Current Protection (OCP)
- Thermal Shutdown, Over-Voltage (OVP), Short–Circuit (SCP), and Open-String Protection
Typical Application Circuit
Applications
- General LED Illumination
- LCD Backlight Panels
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 MPQ2483A support?
4.5 V to 55 V. The rated output is 2.5 A.
Which package and ordering codes apply to the MPQ2483A?
SOIC14; order codes include MPQ2483A.
What are the defining features of the MPQ2483A?
2.5A Maximum Peak Current Buck or Buck-Boost Modes
Is the MPQ2483A 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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