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On-Board Charging

An On-Board Charger (OBC) uses the AC current from a charging station or from household power to charge the batteries in a plug-in electric vehicle or hybrid-electric vehicle. In order to charge the batteries from AC power, the OBC performs the power factor correction (PFC) function followed by a DC/DC conversion to efficiently charge to the required voltage level for the battery.

Combining automotive-grade components for digital, analog, connectivity and power, Microchip offers what designers need to develop cost-effective and energy-efficient embedded control solutions for on-board charging.

On-Board Charging Block Diagram

Digital Signal Controllers

Microchip’s portfolio of Digital Signal Controllers (DSC) includes devices with features supporting common, multi-loop digital switch-mode power supplies (SMPS) and other digital power-conversion applications. These DSCs are also ideal for switched mode power supplies such as AC/DC, DC/DC, UPS and PFC, providing high-precision digital control of buck, boost, fly-back, half-bridge, full-bridge, LLC and other power circuits to reach the highest possible energy efficiency. 

  • dsPIC33EP128GS805 – 16-bit DSC for digital power applications with interconnected high-speed PWM, ADC, PGA and comparators
  • dsPIC33CK64MP205 – 16-bit digital signal controller with high-resolution PWM

CAN Transceivers

Microchip’s portfolio of CAN transceivers includes CAN 2.0, CAN-FD (Flexible Data-Rate), and CAN PN (Partial Networking) transceivers, and support the newest CAN standards, ISO 11898 2/5/6, ISO 11898-2:2016 and SAE J2962-2. Features include various wake-up functionalities and exceptional EMC performance even without a common-mode choke. Microchip also offers the industry’s first AEC-Q100 Grade 0 (150°C) qualified CAN transceiver family.

  • ATA6562 – High-speed CAN FD transceiver with standby- and Silent mode and WUP
  • MCP2561FD – High-speed CAN FD transceiver with Standby mode and SPLIT Pin
  • ATA6570 – High-speed CAN FD transceiver with Partial Networking

Temperature Sensors

Microchip’s lineup of temperature sensors and switches comprise analog and digital outputs, giving you the flexibility you need for your design. Our automotive-grade temperature sensors are factory calibrated with up to +/-0.5°C accuracy over a temperature range of -40°C to 125°C. And with very small form factors, they provide an ideal solution for temperature sensing without consuming a significant amount of board space.

  • MCP9700A – Low-power linear active thermistor ICs, analog output
  • MCP9800 – 2-wire high-accuracy temperature sensor, digital output
  • MCP9504 – Temperature switch with selectable hysteresis

Voltage Regulators

Our basic power management solutions include several automotive grade linear and switched voltage regulators. Linear regulators feature low dropout voltages, ultra-low quiescent currents, wide input voltage ranges, load dump and reverse battery protection. Switching regulators support buck, boost, buck-boost and SEPIC designs from 100 mA to 12A output currents.

  • MAQ5281 – High-performance, low dropout regulator, 25 mA, 120V, adjustable Vout from 1.27 to 5.5V.
  • MCP1790 – 30V, 70 mA, load dump protected linear voltage regulator
  • MCP16311 – 30V, 1A PFM/PWM high-efficiency synchronous buck regulator
  • MCP16331 – 50V 1A Non-synchronous buck regulator

MOSFET Drivers

For ease of design, an integrated MOSFET driver provides an interface between the digital signal controller and the six MOSFET array controlling the three-phase motor. These devices feature low propagation delays, anti-shoot through outputs which are guaranteed to not overlap, and an overcurrent protection and an internal diode that charges the high-side gate drive bootstrap capacitor.

  • MIC4607 – 85V, three-phase MOSFET driver with adaptive dead-time, anti-shoot-through and overcurrent protection

Analog-to-Digital Converters

When an external Analog-to-Digital Converter (ADC) is required for your design, you can find a wide variety of solutions from Microchip. Our automotive-grade portfolio includes Successive Approximation Register (SAR) and Delta-Sigma analog-to-digital converters. Our SAR ADCs range from 10-bit to 16-bit resolution, with speeds up to 1 Msps. Delta-sigma converters offer 16-bit to 22-bit resolutions, with sampling rates up to 125 ksps.

  • MCP3001 – 2.7V 10-bit A/D converter with SPI serial interface
  • MCP3302 – 13-bit Differential Input, ADC with SPI serial interface
  • MCP33131D-10 – 1 Msps 16/14/12-Bit differential input SAR ADC
  • MCP3422 – 18-bit, multi-channel ΔΣ ADC with I2C interface and on-board reference
  • MCP3553 – Low-power, single-channel 22-bit delta-sigma ADC

Op Amps

Microchip’s portfolio of operational amplifiers (op amps) include general purpose, precision and zero-drift amplifiers. If your design requires low offset voltages or drift, low quiescent currents or enhanced EMI rejection, we have a solution that fits your needs. Our op amps are available in single-, dual- and quad-configurations in very small form factors.–

  • MCP6004 – General purpose quad op amp, 1 MHz, low power, rail-to-rail
  • MCP6032 – High-precision dual op amp, 0.9 µA quiescent current, 150 µV offset voltage
  • MCP6V28 – 620 µA, 2 MHz auto-zeroed op amp

MEMS Oscillators

Microchip’s MEMS oscillators are designed to meet the stringent requirements of the harsh automotive environment. With quality and performance advantages over crystal oscillators such as DPPM levels that are ten times lower, shock tolerance 500 times higher and vibration tolerance five times higher, these MEMS oscillators are an excellent choice for automotive applications. Our leading-edge MEMS technology, advanced packaging, and innovative Phase-Locked Loop (PLL) design enables us to offer the most stable, reliable and robust oscillators in the industry.

  • DSA1105 – Automotive low-jitter MEMS oscillator
  • DSA1125 – Automotive low-jitter MEMS oscillator
  • DSA2311 – Automotive MEMS clock generator


Microchip offers the broadest portfolio of automotive-grade 8-, 16- and 32-bit microcontrollers in the industry. With Core Independent Peripherals and multiple connectivity and package options to choose from, you will surely find one that meets your embedded control system’s needs.

  • PIC16F18345 – Enhanced mid-range core 8-bit microcontroller with Core Independent Peripherals (CIP) and Extreme Low Power (XLP)
  • PIC18F26K83 – 28-pin, low-power, high-performance 8-bit microcontroller with CAN technology


The MCP654x family of comparators comprises single, dual and quad push-pull output configurations. These single-ended devices operate from 1.6V to 5.5V, with typical quiescent current of 600 nA and a maximum of 1 microamp. They are ideally suited for use in current and/or voltage measurement in the feedback loop.

  • MCP6542 – Dual push-pull output sub-microamp comparator
  • MCP6544 – Quad push-pull output sub-microamp comparator
Development Tools

Development Tool


Automotive Networking Development Board

The Automotive Networking Development Board is a low-cost modular development system for Microchip’s 8-bit, 16-bit, and 32-bit microcontrollers targeting CAN and LIN network related applications. The board supports devices using the 100 pin Plug-In Module (PIM) connector, has four Mikrobus™ sockets for MikroElectronika Click™ add-on boards and includes a PICtail™ Plus edge connector for backwards compatibility to PICtail Plus boards used with the Explorer 16 Development board.

MIC4607-1YML Evaluation Board

The MIC4607 is an 85V, three-phase MOSFET driver that features a fast (35ns) propagation delay time and 20ns driver rise/fall times for a 1nF capacitive load. TTL inputs can be separate high- and low-side signals or a single PWM input with high and low drive generated internally. High- and low-side outputs are guaranteed to not overlap in either mode. The MIC4607 includes overcurrent protection as well as a high-voltage internal diode that charges the high-side gate drive bootstrap capacitor.


The dsPIC33EV 5V CAN-LIN starter Kit features the dsPIC33EV256GM106 Digital Signal Controller (DSC) for automotive and motor control applications. The Starter Kit contains serial data ports for CAN, LIN and SENT, a self-contained USB programming/debug interface, and an expansion footprint for flexibility in application hardware development. This board allows users to explore three popular automotive and industrial serial data formats (CAN, LIN and SENT).

TimeFlash 2 Field Programming Kit

The TimeFlash 2 programmer allows users to program Microchip’s field programmable oscillators to a custom frequency in second enabling fast prototyping and testing. This tool, now in its second generation, has the ability to measure frequency accuracy and power consumption of standard oscillators, regardless of vendor, making it a valuable lab tool for engineers. Microchip’s oscillators are available in industry standard packages that are drop-in replacements to standard crystal oscillators.

MAQ5280YME Evaluation Board

The MAQ5280 eval board demonstrates the features of the MAQ5280, a high performance, linear regulator, offering a very low noise output with a very wide input voltage operating range, from 4.5V to 120V DC input voltage.

Explorer 16/32 Development Kit

The Explorer 16/32 Development Kit is a flexible, convenient and ready to start development, demonstration and testing platform for 16-bit PIC24 MCUs, dsPIC® DSCs and 32-bit PIC32 MCUs. The board accepts Processor Plug-In Modules (PIM) and hardware expansion is possible through the use of PICtail™ Plus daughter cards and mikroBUS™ accessory boards.

CryptoAutomotive™ IVN TA/BSD Development Platform.
( DM320112)

The CryptoAutomotive™ In-vehicle Network (IVN) Trust Anchor/Border Security Device (TA/BSD) development kit enables Original Equipment Manufacturers (OEMs) and Tier 1 customers to add comprehensive security to networked vehicle systems with minimal impact on current designs while providing the highest level of protection against threats. The only security-specific automotive tool in the industry, the CryptoAutomotive TA/BSD development kit together with a host MCU emulates a node in an automotive network and provides system designers with an intuitive starting point for implementing security.