FAN5341: LED Driver, Series Boost, with Integrated Schottky Diode and Single-wire Digital Interface
Description: The FAN5341 is an asynchronous constant-current LE...
The FAN5341 is an asynchronous constant-current LED driver capable of efficiently delivering up to 500mW to a string of up to five LEDs in series. Optimized for small formfactor applications, the 1.2MHz fixed switching frequency allows the use of small chip inductors and capacitors.
The FAN5341 uses a simple single-wire digital control interface to program the brightness levels of the LEDs in 32 linear steps by applying digital pulses.
For safety, the device features integrated over-voltage, overcurrent, short-circuit detection, and thermal-shutdown protection. In addition, input under-voltage lockout protection is triggered if the battery voltage is too low.
The FAN5341 is available in a very low profile, small form factor 2mm x 2mm x 0.55mm 6-lead UMLP package that is green and RoHS compliant.
Asynchronous Boost Converter
Internal Schottky Diode
Up to 500 mW Output Power
Drives 3 to 5 LEDs in Series
2.7 V to 5.5 V Input Voltage Range
Single-Wire Digital Control Interface to Set LED Brightness Levels
32 Linear Steps
1.2 MHz Fixed Switching Frequency
Input Under-Voltage Lockout (UVLO)
Output Over-Voltage Protection (OVP)
Thermal Shutdown (TSD) Protection
Technical Documentation & Design Resources
Availability and Samples
Compliance: Pb-free Halide free
Description: LED Driver, Series Boost, with Integrated Schottky Diode and Single-wire Digital Interface
Package Type: UDFN-6
Package Case Outline: 517DS
Container Type: REEL
Container Qty: 3000
Market Leadtime (weeks):4 to 8
VI Max (V):
IO Max (mA):
LEDs in Series, Max #:
LEDs in Parallel, Max #: