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Features

? Wide Input Voltage Range: 8V to 60V

? Linear (analog) Dimming:

- With wide range of amplitude control of the

LED current

? Pulse-Width Modulation (PWM) (digital) Dimming:

- Dims down to 0.01% and lower

- With PWM pulse width lower than 150 ns

- PWM dimming frequency up to 20 kHz

? Flyback Converter:

- With automatic output voltage adjustment for

maintaining high system efficiency

? Boost Converter:

- With near zero output voltage ripple for a

ripple-free LED current

- 100 Hz/120 Hz ripple rejection

- 200 kHz fixed switching frequency

- SEPIC topology compatible

? VDD Regulator:

- 60V input voltage/5V output voltage

- 10 mA drive for supplying external loads

? Fault Recovery with Auto-Retry Delay Set Using

Timing Capacitor

? Undervoltage Detection of:

- VDD voltage

- Supply voltage (Flyback output voltage)

? Overvoltage Detection of:

- LED load voltage (Boost output voltage)

? Overcurrent Detection of:

- Load switch current

? Stuck-at-Zero Detection of:

- DIM input signal

? Short Circuit Protection of Output with Auto-Retry

Delay

Applications

? Offline LED lighting applications featuring wide

range for PWM dimming and linear dimming.