Microchip MCP19215 | Demoboard AN3696

Description

The MCP19214/5 is a controller used in dual, high-efficiency DC/DC converters. This integrated circuit (IC) brings considerable aid to portable applications with the new concept of Current Sharing, Interleaved, Dual-Phase Application. Handheld terminals, electric bicycles, electric scooters, and notebook computers can benefit using this type of converter as it reduces electromagnetic interference (EMI), lowers input filtering requirements, and lowers power stress on components, which results in a board that generates less heat. Using this type of topology also has the advantage of halving the input current amplitude, reducing the peak current flowing towards the input capacitor. The losses from the input battery (12V) are also reduced as it draws less peak current for the board.

Features

• Dual channel, for operating two power outputs from one controller
• Constant-current or constant-voltage operation, with dynamic switching between those two control modes, and dynamic adjustment of the output level
• Capable of bi-directional power supply control
• Wide input operating voltage range: 4.5-42V
• Analog peak-current mode Pulse-Width Modulation (PWM) control
• Integrated 8-Bit PIC® Microcontroller
• Complete configurability: adjustable output voltage, output current, MOSFET deadtime, leading edge blanking time, thermal responses, slope compensation, over-current protection, over and under voltage lockout levels
• Available fixed frequency operation from 31 kHz to 2 MHz
• I2C communication interface
• 12 GPIO
• Integrated low-side MOSFET drivers
• Integrated high voltage linear regulator, with external output
• Integrated temperature sense diode
• Integrated 10 bit A/D converter
• Minimal external components needed
• Custom algorithm support
• Topologies supported: Boost, SEPIC, Flyback, and Cuk

Typical applications

• power supply

More information

• Datasheet
• IC product information