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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP19124 Datasheet

Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller

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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:
- VREF, Precision IOUT/VOUT Set Point (DAC)
- ADC Reference Switch (VDD or AVDD)
- 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
2018 Microchip Technology Inc.
DS20005619B-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP19124 Datasheet

Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller

No Preview Available !

MCP19124/5
Pin Diagram – 24-Pin QFN (MCP19124)
24 23 22 21 20 19
GPA0/AN0/TEST_OUT 1
18 VDR
GPA1/AN1/CLKPIN 2
17 PDRV
GPA2/AN2/T0CKI/INT 3
GPA3/AN3 4
MCP19124
16 SDRV
15 PGND
GPA7/SCL/ICSPCLK 5
GPA6/CCD/ICSPDAT 6
7
EXP-25 *
89
14 AGND
13 IP
10 11 12
* Includes Exposed Thermal Pad, see Table 1.
DS20005619B-page 2
2018 Microchip Technology Inc.


Part Number MCP19124
Description Digitally-Enhanced Power Analog Synchronous Low-Side Dual-Loop PWM Controller
Maker Microchip
Total Page 30 Pages
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