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Linear LED Drivers | FAN5346

LED Driver, Series Boost, with PWM Dimming Interface

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The FAN5346 is an asynchronous constant-current LED driver that drives LEDs in series to ensure equal brightness for all the LEDs. FAN5346S20X has an output voltage of 20 V and can drive up to 5 LEDs in series. FAN5346S30X has an output voltage of 30 V and up to 8 LEDs in series. Optimized for small form-factor applications, the 1.2 MHz fixed switching frequency allows the use of small inductors and capacitors.
The FAN5346 uses a PWM dimming control interface to set the brightness levels of the LEDs. A PWM signal of 5kHz to 100kHz is applied to the EN pin.
For safety, the device features integrated over-voltage, over-current, short-circuit detection, and thermal-shutdown protections. In addition, input under-voltage lockout protection is triggered if the battery voltage is too low.

  • • Asynchronous Boost Converter • Drives LEDs in Series:
  • FAN5346S20X: 20 V Output
  • FAN5346S30X: 30 V Output • 2.5 V to 5.5 V Input Voltage Range • PWM Dinning for LED Brightness Control • 5 kHz to 100 kHz PWM Dimming Frequency Range • 1.2 MHz Fixed Switching Frequency • Soft-Start Capability • Input Under-Voltage Lockout (UVLO) • Output Over-Voltage Protection (OVP) • Short-Circuit Detection • Thermal Shutdown (TSD) Protection

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FAN5346S20X

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Obsolete

CAD Model

Pb

A

H

P

TSOT-23-6

419BL

1

260

REEL

3000

N

5.5

25

5

1

Price N/A

More Details

FAN5346S30X

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Obsolete

CAD Model

Pb

A

H

P

TSOT-23-6

419BL

1

260

REEL

3000

N

5.5

25

8

1

Price N/A

More Details

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