Welcome to our company!
MPQ24833-B 4.5-55V, 3A, 420kHz LED Driver SOIC
Share
pMPS MPQ24833-B — LED Driver, 4.5-55V input, 3 A output, SOIC, AEC-Q100./p
- Product Details
- Download
MPQ24833-B 4.5-55V, 3A, 420kHz LED Driver SOIC
The MPS MPQ24833-B is a LED Driver. It operates from a 4.5 V to 55 V input, is rated for 3 A and switches at 420 kHz. It is supplied in a SOIC package. The part is AEC-Q100 qualified.
The MPQ24833-B is a 55V, 3A, LED driver suitable for step-down, inverting step-up/step- down, and step-up applications.
Key Specifications
| Part Number | MPQ24833-B |
| Function | LED Driver |
| Input Voltage | 4.5 V to 55 V |
| Current Rating | 3 A |
| Switching Frequency | 420 kHz |
| Interface | PWM |
| Package | SOIC |
| Qualification | AEC-Q100 |
| Ordering Codes | MPQ24833-B |
Features
- 3A Maximum Output Current
- Unique Step-Up/Step-Down Operation (Buck-Boost Mode)
- Wide 4.5V to 55V Operating Input Range for Step-Down Applications (Buck Mode)
- 0.15Ω Internal Power MOSFET Switch
- Fixed 420kHz Switching Frequency
- Analog and PWM Dimming
- 0.2V Reference Voltage
- 6μA Shutdown Mode
- No Minimum Number of LEDs Required
- Stable with Low-ESR Output Ceramic Capacitors
Typical Application Circuit
Applications
- General LED Illumination
- LCD Backlight Panels
- Automotive Lighting
- Portable Multimedia Players
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 MPQ24833-B support?
4.5 V to 55 V. The rated output is 3 A.
Which package and ordering codes apply to the MPQ24833-B?
SOIC; order codes include MPQ24833-B.
What are the defining features of the MPQ24833-B?
3A Maximum Output Current Unique Step-Up/Step-Down Operation (Buck-Boost Mode)
Is the MPQ24833-B 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.
Shenzhen Gaorunxin Technology Co., Ltd
Online message
Shenzhen Gaorunxin Technology Co., Ltd
