FAN5346: LED Driver, Series Boost, with PWM Dimming Interface

Description: The FAN5346 is an asynchronous constant-current LE...
  • 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.
  • Features
  • • 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
  • Technical Documentation & Design Resources
    Availability and Samples
    FAN5346S20X
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: LED Driver, Series Boost, with PWM Dimming Interface
  • Package Type: TSOT-23-6
  • Package Case Outline: 419AG
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • FAN5346S30X
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: LED Driver, Series Boost, with PWM Dimming Interface
  • Package Type: TSOT-23-6
  • Package Case Outline: 419AG
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • Mouser:<1K
  • Specifications
  • VI Max (V): 5.5 
  • IO Max (mA): 25 
  • LEDs in Series, Max #:
  • LEDs in Parallel, Max #:
  • Package Type: TSOT-23-6 
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