Datasheet

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Automotive Capabilities

LED Exterior Lighting Solutions

Mid-Range Exterior Automotive LED Control Module Solution

The mid-range LED control module solution enables an embedded designer

to expand the functional capability of a lighting system to support the

safety of a vehicle occupants while also reducing the vehicle’s weight

and improving its fuel efficiency. Utilizing a low-cost PIC microcontroller

in conjunction with discrete PWM controllers to regulate one or more

LED strings allows scalability of the LED control module. Microchip’s

solutions provide the flexibility to effectively address a range of

system requirements.

Typical Applications

■ Fog lights

■ Taillights

■ Daytime running lights

■ Position lights

■ High/low beam headlamps

■ Corner lights

Application Diagram Example: MCU in Conjunction with Multiple Discrete PWM Controllers

Microchip Solution Suggested Products Description

Microcontroller

PIC® MCU/dsPIC®

DSC Family

8-bit/16-bit/32-bit MCU/DSC family

Voltage Regulator

MCP16301 600 mA peak output current, DC-DC regulator

MCP179X Family 70 mA, high-voltage linear regulator family

LIN Transceiver MCP200X Family Stand-alone LIN transceiver family

CAN Transceiver MCP256X Family High-speed CAN transceiver family

Temperature Sensor

MCP970X Family Low-power linear active thermistor family

MCP980X Family Digital temperature sensor with 2-wire I

C™/SM Bus interface family

PWM Controller MCP163X Family High-speed, microcontroller-adaptable, pulse width modulator family

Taillight

Voltage

Regulator

PWM Controller

(MOSFET Driver

Integrated)

CAN

Transceiver

LIN

Transceiver

I/O

ADC/I

C™

MOSFETs

Channel 1 LED String Current Regulation

Feedback Loops

(Current/Voltage/Failsafe)

DC-DC

Topology

Channel 1

LED String

Channel n

LED String

PIC

MCU or

dsPIC

DSC

REF