Welcome to our company!
MP4689A 4.5-100V, 1A, 1MHz High-Power LED Driver SOIC
Share
pMPS MP4689A — High-Power LED Driver, 4.5-100V input, 1 A output, SOIC, AEC-Q100./p
- Product Details
- Download
MP4689A 4.5-100V, 1A, 1MHz High-Power LED Driver SOIC
The MPS MP4689A is a High-Power LED Driver. It operates from a 4.5 V to 100 V input, is rated for 1 A and switches at 1 MHz. It is supplied in a SOIC package. The part is AEC-Q100 qualified.
The MP4689A is a high-voltage input, step- down, switching regulator that delivers up to 1A of constant current to high-power LEDs.
Key Specifications
| Part Number | MP4689A |
| Function | High-Power LED Driver |
| Input Voltage | 4.5 V to 100 V |
| Current Rating | 1 A |
| Switching Frequency | 1 MHz |
| Quiescent Current | 170 µA |
| Interface | PWM |
| Peak Efficiency | 95% |
| Package | SOIC |
| Qualification | AEC-Q100 |
| Ordering Codes | MP4689A |
Features
- Wide 4.5V to 100V Operating Input Range
- No Output Capacitor Required
- ±3% LED Current Accuracy
- Hysteretic Control: No Compensation
- Up to 1MHz Switching Frequency
- Up to 20kHz Dimming Frequency
- Dedicated PWM Dimming Control Input
- Short-Circuit Protection (SCP) with Integrated High-Side MOSFET
- Thermal Shutdown
- 200mV Reference Voltage for High Efficiency
Typical Application Circuit
Applications
- High-Power LED Drivers
- Automotive, Industry, and General 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 MP4689A support?
4.5 V to 100 V. The rated output is 1 A.
Which package and ordering codes apply to the MP4689A?
SOIC; order codes include MP4689A.
What are the defining features of the MP4689A?
Wide 4.5V to 100V Operating Input Range No Output Capacitor Required
Is the MP4689A 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
