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IC specification
MLX10803
High power LED driver
3901010803
Page 1/25
Data Sheet
Rev 025
2/OCT/07
Features
General
•
Low cost power LED driver for external n-channel MOSFET
switching transistor
•
6V to 32V DC input range
•
Applications from mA to several Ampere LED current
•
Possible temperature dependent regulation using external
Negative Temperature Coefficient (NTC) resistor
•
Small package allows compact module design with minimised
wire runs and short connections to achieve improved EMC
performance
•
Built-in randomiser for improved EMC performance
•
High temperature operation capable
•
Load dump protected to 80V
LED driver
•
High energy efficiency
•
PWM dimming via VS/PWM pin
•
Light output has minimised dependency on supply and
temperature variations
•
LED regulation parameters set with external resistors
1
2
3
4
8
7
6
5
VREF
IREF2
IREF1
DRVGATE
RSENSE
ROSC
GND
10803
(SOIC8)
VS/PWM
Ordering Information
Part Nr
Temperature Code
Package Code
MLX10803
K (-40°C to 125°C)
DC (SOIC8)
General Description
The MLX10803 is a multi-purpose LED driver for high power LEDs designed for high current and high voltage
applications. The circuit is designed for demanding automotive applications and therefore suitable in all other high
intensity LED applications.
Numerous adjustment possibilities allow for the design of different LED applications using only a few external
components.
The circuit is load dump protected for 80V load dump pulse.
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