1. FAN5622/4/6:. 2, 4 and 6 Channel Linear. LED Drivers with Single-
FAN5622/4/6: 2, 4 and 6 Channel Linear LED Drivers with Single- Wire Digital Interface
Product Presentation

2. Overview
LEDs are used in many lighting applications for products across several markets
Portable electronics
Medical electronics/instrumentation
Industrial/embedded systems
Rugged Handhelds
LEDs are used to backlight LCDs, keypads, indicator lights or general panel lighting
LED drivers are used to power these LEDs and alter their brightness levels to achieve the proper effect
Driving factors in space critical applications are overall solution size and cost along with ease of implementation

3. Introduction
FAN562x is a family of linear LED drivers offered by Fairchild Semiconductor for various lighting applications
There are 3 members in this product family:
FAN5622: 2 Channels
FAN5624: 4 Channels
FAN5626: 6 Channels
Small and cost effective lighting solution that provides excellent performance:
Up to 95% efficiency
32 dimming levels
Easy-to-use single-wire digital interface
Very small package formats

4. FAN5622 2-ch. Linear LED Driver w/ Digital Dimming Input
Features
2 LED outputs at 30mA each
Current sink driver for each LED output
60mV 30mA IOUT (max)
Single-wire digital control interface
Program up to 32 different LED brightness levels
VIN = 2.7V to 5.5V
External RSET current programming
Very low shutdown current
Compact solution requires only single bypass capacitor
Pkg: Thin SOT23-6
Applications
Ultra Low Cost Mobile Handsets
MP3 Players
Keypad Backlights
Rugged Handheld PCs
Portable Medical Instruments
Portable Measurement Instruments

5. FAN5624 4-ch. Linear LED Driver w/ Digital Dimming Input
Features
4 LED outputs at 30mA each
Current sink driver for each LED output
60mV 30mA IOUT (max)
Single-wire digital control interface
Program up to 32 different LED brightness levels
VIN = 2.7V to 5.5V
External RSET current programming
Very low shutdown current
Compact solution requires only single bypass capacitor
Pkg: 1.4 x 1.8 x 0.55mm UMLP10
Applications
Mid-Level Mobile Handsets
MP3 Players
Keypad Backlights
Rugged Handheld PCs
Portable Medical Instruments
Portable Measurement Instruments
2.7 – 5.5V

6. FAN5626 6-ch. Linear LED Driver w/ Digital Dimming Input
Features
6 LED outputs at 30mA each
Current sink driver for each LED output
60mV 30mA IOUT (max)
Single-wire digital control interface
Program up to 32 different LED brightness levels
VIN = 2.7V to 5.5V
External RSET current programming
Very low shutdown current
Compact solution requires only single bypass capacitor
Pkg: 1.6 x 2.1 x 0.55mm MicroPAK MLP10
Applications
Mid-Level Mobile Handsets
MP3 Players
Keypad Backlights
Rugged Handheld PCs
Portable Medical Instruments
Portable Measurement Instruments
2.7 – 5.5V

7. FAN5622/4/6 Efficiency

8. FAN5622/4/6 Dropout Voltage

9. FAN5622/4/6 LED Current Match

10. FAN5622/4/6 Load Regulation

11. FAN5622/4/6 Features & Benefits
High Efficiency
Up to 95% peak efficiency
Consumes lower power to extend usage time in portable products
Single-Wire Digital Interface
Simple single-wire digital interface to enable linear dimming
32 linear dimming steps to provide greater brightness resolution
Current Match
Ensures equal brightness to each LED output such that it will not impact visual quality
Small Form Factor
Saves PCB space in portable products
Low profile and under 4mm2 in area for FAN5624 & FAN5626
Only 2 external passive components needed

12. Pricing & Availability
Fairchild Part Number
Package
Unit 1ku
Availability
FAN5622SX
SSOT23-6
$0.47
Now
FAN5624UMPX
UMLP-10
$0.55
FAN5626LX
MicroPAK MLP-10
$0.63

13. Technical Materials FAN5622/4/6 Datasheet
FAN5622/4/6 Product Overview
Evaluation Boards
Request via Fairchild Sales Center
Samples

14. Marketing & Apps Contacts
Marketing Contact
Wayne Seto
Applications Support
Sam Song
x360