MCP19124 Datasheet, PDF (1/236 Pages) Microchip Technology – Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller

MCP19124/5
Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop
PWM Controller
Features
• Input Voltage: 4.5V to 42V
• Individual Analog Control Loops for Current or
Voltage Regulation
• Can be configured with multiple topologies
including but not limited to:
- Flyback
- Ćuk
- Boost
- SEPIC (Single-Ended Primary-Inductor
Converter)
• Capable of Quasi-Resonant or Fixed-Frequency
Operation
• Low Quiescent Current: 5 mA Typical
• Low Sleep Current: 50 µA Typical
• Low-Side Gate Drivers:
- +5V gate drive with 0.5A sink/source current
- +10V gate drive with 1A sink/source current
• Peak Current Mode Control
• Differential Remote Output Sense
• Multiple Output Systems:
- Master or Slave
• AEC-Q100 Qualified
• Configurable Parameters:
- V_REF, Precision I_OUT/V_OUT Set Point (DAC)
- ADC Reference Switch (V_DD or AV_DD)
- Input Undervoltage Lockout (UVLO)
- Input Overvoltage Lockout (OVLO)
- Detection and protection
- Primary current leading edge blanking (0 ns,
50 ns, 100 ns and 200 ns)
- Gate drive dead time (16 ns to 256 ns)
- Fixed switching frequency range: 31.25 kHz
to 2.0 MHz
- Slope compensation
- Quasi-resonant configuration with built-in
comparator and programmable offset voltage
adjustment
- Primary current offset adjustment
- GPIO pin options
• Integrated Low-Side Differential Current Sense
Amplifier
• Better than ±5% Current Regulation
• Thermal Shutdown
Microcontroller Features
• Precision 8 MHz Internal Oscillator Block:
- Factory-calibrated to ±1%, typical
• Interrupt-Capable:
- Firmware
- Interrupt-on-change pins
• Only 35 Instructions to Learn
• 4095 Words On-Chip Program Memory
• High-Endurance Flash:
- 100,000 write Flash endurance
- Flash retention: > 40 years
• Watchdog Timer (WDT) with Independent
Oscillator for Reliable Operation
• Programmable Code Protection
• In-Circuit Serial Programming™ (ICSP™) via Two
Pins
• Eight I/O Pins and One Input-Only Pin:
- Two open-drain pins
• Analog-to-Digital Converter (ADC):
- 10-bit resolution
- Five external channels
• Timer0: 8-bit Timer/Counter with 8-bit Prescaler
• Enhanced Timer1:
- 16-bit timer with prescaler
- Two selectable clock sources
• Timer2: 8-Bit Timer with Prescaler:
- 8-bit period register
• I²C Communication:
- 7-bit address masking
- Two dedicated address registers
 2016 Microchip Technology Inc.
DS20005619A-page 1