Datasheet
12
Automotive Capabilities
LED Exterior Lighting Solutions
High-End Exterior Automotive LED Control Module Solution
Microchip’s broad portfolio of dsPIC Digital Signal Controllers (DSC) offers
an excellent building block to support high-end solutions. The DSC utilizes
switch mode power supply (SMPS) techniques to regulate a large number
of LED strings or matrix LEDs. With its feature-rich, performance-oriented
PWM peripherals and analog peripherals, the dsPIC33 “GS” Family offers
a controller capable of regulating up to 18 high-brightness LED strings or
18 individual matrix LEDs independently from each other. The DSC has
sufficient performance to control all head lamp beams, daytime running
lights, turn indicator lights and thermal fans.
Typical Applications
■ Headlamp
■ High/low beam
■ Corner lights
Application Diagram Example: Single Controller with Multiple LED Strings
Microchip Solution Suggested Products Description
Digital Signal
Controller
dsPIC33FJXXXGS
Family
16-bit 40 MIPS Digital Signal Controller family with power conversion peripherals
dsPIC33EPXXXGS
Family
16-bit 70 MIPS Digital Signal Controller family with power conversion peripherals
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
2
C™/SM Bus interface family
MOSFET Driver MCP14XX Family Inverting/Non-inverting single and dual power MOSFET driver family
Headlamp Beams
Voltage
Regulator
MOSFET
Drivers
CAN
Transceiver
LIN
Transceiver
LIN
CAN
PWMs
ADCs
V
DD
MOSFETs
Channel 1 LED String Current Regulation
Control Loops
(Current/Voltage/Failsafe)
Thermal Feedback
Temperature
Sensor
DC-DC
Topology
MOSFET
Drivers
MOSFETs
Channel n LED String Current Regulation
Control Loops
(Current/Voltage/Failsafe)
Thermal Feedback
Temperature
Sensor
DC-DC
Topology
Channel 1
LED String
Channel n
LED String
dsPIC33
”GS”
DSC Family