MCP19122-E/MJ Microchip

MCP19122/3 Digitally Enhanced Power Analog Controller with Integrated Synchronous Driver Synchronous Buck Features Microcontroller Features Precision 8 MHz Internal Oscillator Block: Input Voltage: 4.5V to 40V (operating), 48V - Factory Calibrated (non-operating) Interrupt Capable Output Voltage: 0.3V to 16V -Firmware - 0.1% typical output voltage accuracy - Interrupt-on-Change Pins - Greater than 16V requires external divider Only 35 Instructions to Learn Switching Frequency: 100 kHz to 1.6 MHz 4096 Words On-Chip Program Memory Shutdown Quiescent Current: 50 A Typical High Endurance Flash: High-Drive: - 100,000 Write Flash Endurance - +5V Gate Drive - Flash Retention: >40 years - 2A Source Current Watchdog Timer (WDT) with Independent - 2A Sink Current Oscillator for Reliable Operation Low-Drive: Programmable Code Protection - +5V Gate Drive In-Circuit Debug (ICD) via Two Pins (MCP19123) - 2A Source Current In-Circuit Serial Programming (ICSP) via Two - 4A Sink Current Pins Emulated Average Current Mode Control 12 I/O Pins and One Input-Only Pin (MCP19122) Differential Remote Output Sense - 3 Open Drain Pins Multi-Phase Systems: - 2 Weak Current Source Pins - Master or Slave 16 I/O Pins and One Input-Only Pin (MCP19123) - Frequency Synchronized - 3 Open Drain Pins - Common Current Sense Signal - 2 Weak Current Source Pins Multiple Output Systems: Analog-to-Digital Converter (ADC): - Master or Slave - 10-bit Resolution - Frequency Synchronized - 24 Internal Channels AEC-Q100 Qualified - 8 External Channels Configureable Parameters: Timer0: 8-bit Timer/Counter with 8-Bit Prescaler - Overcurrent Limit Enhanced Timer1: - Input Undervoltage Lockout - 16-bit Timer/Counter with Prescaler - Input Overvoltage - 2 Selectable Clock Sources - Output Overvoltage - External Gate Input Mode - Output Undervoltage Timer2: 8-Bit Timer/Counter with Prescaler - Internal Analog Compensation - 8-bit Period Register - Soft Start Profile Capture, Compare Module - Synchronous Driver Dead Time 2 TM I C Communication: - Switching Frequency - 7-bit Address Masking Thermal Shutdown - 2 Dedicated Address Registers TM - SMBus/PMBus Compatibility 2017 Microchip Technology Inc. DS20005750A-page 1MCP19122/3 Pin Diagram 24-Pin 4X4 QFN (MCP19122) MCP19122 24-pin QFN 4x 4mm 1 GPA0 18 BOOT 2 GPA1 17 HDRV 3 GPA2 16 PHASE MCP19122 4 GPA3 LDRV 15 5 GPA7 14 P GND EXP-25 6 GPA6 13 ISP DS20005750A-page 2 2017 Microchip Technology Inc. GPA5/MCLR 7 24 GPB2 GPA4 8 23 GPB1 GND 9 22 GPB0 -VSEN 10 21 GPB3 +VSEN 11 V 20 DD ISN 12 19 V IN