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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. 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.

With our combination of automotive-grade components for digital, analog, connectivity and power, we offer what you need to develop cost-effective and energy-efficient embedded control solutions for on-board charging.

Solutions


Digital Signal Controllers


Our portfolio of Digital Signal Controllers (DSCs) 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. For further information on devices and reference designs, please visit our Intelligent Power Design Center.

  • dsPIC33EP128GS805 – 16-bit DSC for digital power applications with interconnected high-speed Pulse-Width Modulator (PWM), Analog-to-Digital Converter (ADC), Programmable Gain Amplfier (PGA) and comparators
  • dsPIC33CH512MP508 – 100 MIPS, high-performance dual-core DSC with high-resolution PWMs, high-speed ADCs, dual CAN FD and functional safety features
  • dsPIC33CK256MP505 – 100 MIPS, high-performance single-core DSC with high-resolution PWMs, high-speed ADCs, CAN FD and functional safety features

CAN Transceivers


Our CAN transceivers includes CAN 2.0, CAN Flexible Data-Rate (CAN FD), and CAN Partial Networking (CAN PN) 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. We also offer 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


Our lineup of temperature sensors and switches comprises 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. Available in 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 batter 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

MOSFETDrivers


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.

Analog-to-Digital Converters


If you need an external Analog-to-Digital Converter (ADC) for your design, we offer a wide variety of solutions. Our automotive-grade portfolio includes Successive Approximation Register (SAR) and delta-sigma ADCs. Our SAR ADCs range from 10-bit to 16-bit resolution, with speeds up to 1 Msps. Our delta-sigma converters offer 16-bit to 22-bit resolution, 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 delta-sigma ADC with I2C interface and on-board reference
  • MCP3553 - Low-power, single-channel 22-bit delta-sigma ADC

Operational Amplifiers


Our portfolio of operational amplifiers (op amps) includes 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


Our 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 enable 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

Microcontrollers


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

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

Comparators


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 a typical quiescent current of 600 nA and a maximum of 1 mA. 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