Datasheet Details
| Part number | AT9933 |
|---|---|
| Manufacturer | Microchip Technology |
| File Size | 589.59 KB |
| Description | Hysteretic Boost-Buck LED Driver |
| Datasheet |
 AT9933 Datasheet
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General Description
The AT9933 is a variable frequency PWM controller IC, designed to control an LED lamp driver using a low-noise boost-buck (Ćuk) topology.
It uses patent-pending Hysteretic Current-mode control to regulate both the input and the output currents.
Key Features
- AEC-Q100 Automotive Qualified, See Product Identification System.
- Constant Current LED Driver.
- Steps Input Voltage Up or Down.
- Low Electromagnetic Interference (EMI).
- Variable Frequency Operation.
- Internal 75V Linear Regulator.
- Input and Output Current Sensing.
- Input Current Limit.
- Enable and Pulse-width Modulation (PWM) Dimming.
- Ambient Temperature Rating of up to 125°C.
