The Microchip MCP19124-E/MJ is an analogue-based PWM controller with an integrated 8-bit PIC® microcontroller. The combination analogue and digital solutions within a single device results in a product that maximizes the strengths of each technology to create a configurable, high-performance and more cost-effective power conversion solution. The MCP19124-E/MJ contains two independent and configurable outer control loops which take advantage of a faster, inner current loop for peak current-mode control with fast transient response. This unique architecture allows smooth and monotonic switching between constant-voltage and constant-current operation which can be accomplished dynamically during operation.
• Smooth, dynamic transitions between CC and CV operating modes
• Dynamically adjustable output current and output voltage
• Wide operating voltage range: 4.5-42V
• Analog peak-current mode PWM control
• Fixed-frequency or quasi-resonant operation, adjustable 31 kHz to 2 MHz
• Supports Boost, SEPIC, Flyback, and Cuk topologies
• Minimal external component count
• Integrated 8-Bit PIC® MCU allows significant configurability
• I2C communication interface
• 9 GPIO lines
• Custom algorithm support
Feature
- Smooth, dynamic transitions from constant-current to constant-voltage operation using the unique control loop architecture
- Dynamically adjustable output current and output voltage over a wide operating range
- Wide operating voltage range: 4.5-42V
- Analog peak-current mode Pulse-Width Modulation (PWM) control
- Integrated 8-Bit PIC® Microcontroller
- Significant 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 or quasi-resonant operation, adjustable 31 kHz to 2 MHz
- I2C communication interface
- 9 GPIO
- Integrated synchronous low-side MOSFET drivers
- Integrated high voltage linear regulator, with external output
- Integrated temperatures sense diode
- Integrated 10 bit A/D converter
- Minimal external components needed
- Custom algorithm support
- Topologies supported include Boost, SEPIC, Flyback, and Cuk
