iW3637 | Dialog Semiconductor - 亚博全网,亚博电竞菠菜,亚博国际官网平台网址

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Deep Dimming with Virtually No Flicker Even Down to 1%

The iW3637 high-voltage, second-stage buck LED driver provides constant current to LEDs directly from DC power supplies. It supports non-isolated buck and flyback converter topologies to post-regulate from a PFC AC/DC boost converter, minimizing low frequency output ripple current and eliminating virtually all flicker in the system, even down to 1%.

A wide range of DC input voltages simplifies design by enabling the use of just one second-stage driver across any commercial lighting product portfolio.

Features

Single-Stage DC/DC Buck or Flyback Toplogy
Supports Wide DC Input Voltage with Tight Output Current Regulation (±3%)
Output Power up to 150W
PrimAccurate™Primary-Side Control for Excellent Output Current Regulation with No Direct Voltage and Current Feedback Components Needed
Independent Maximum Load Current Setting Interface
PWM Dimming
Wide Dimming Range: 1% - 100%, with 1% Resolution
Configurable Minimum Dimming Setting
- Dim-to-Off, 1%, 5%, or 10%

Features

Fully Protected
- Output Over-Voltage, Output Open, Output Short, Over-Current, Peak Current Limit, Sense-Resistor Short Protections
- Input Voltage Under-Voltage Protection
- Built-In Over-Temperature Protection or External NTC
- Brown-In and Brown-Out Protection
Small SOIC 8-Lead Package