PDF MCP19214 Data sheet ( Hoja de datos )

Número de pieza	MCP19214
Descripción	Low-Side PWM Controller
Fabricantes	Microchip
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No Preview Available ! MCP19214/5 Digitally Enhanced Power Analog, Dual Channel, Low-Side PWM Controller Features • AEC Q100 Qualified and PPAP Capable • Input Voltage Range: 4.5V-42V • Two Independent High-Performance PWM Controllers • Two Independent Control Loops per Channel allowing the User to Simultaneously Control the Output Voltage and Current • Can Be Configured to Control Multiple Topologies including but Not Limited To: - Boost - Flyback - Ćuk - Single-Ended Primary-Inductor Converter (SEPIC) • Peak Current Mode Control • Master/Slave Operation of the PWM Controllers with Adjustable Phase Shift • Differential Output Current Sense Capability • Integrated Low-Side Current Sense Differential Amplifier (10X) • Integrated Low-Side Gate Drivers: - 0.5A Sink/Source Current Capability at 5V Supply Voltage - 1A Sink/Source Current Capability at 10V Supply Voltage • Special Events Generator (the state of regulating loops can be monitored without firmware overhead) • Configurable Parameters: - Reference Voltages for Regulating Loops (four internal DACs) - Input Undervoltage Lockout (UVLO) - Input Overvoltage Lockout (OVLO) - Primary Current Leading Edge Blanking: 0 ns, 50 ns, 100 ns and 200 ns - Fixed Switching Frequency Range: 31.25 kHz-2.0 MHz - Slope Compensation - Primary Current Sense Offset Adjustment - Configurable GPIO Pin Options • Low Quiescent Current: 10 mA Typical • Low Sleep Current: 120 µA Typical • 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 • 8192 Words On-Chip Program Memory • 336 bytes of Internal RAM • 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 • Up to 12 I/O Pins and One Input-Only Pin • Analog-to-Digital Converter (ADC): - 10-Bit Resolution - Internal 4096 mV Precision Reference Generator - Up to 8 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 • Addressable Universal Synchronous Asynchronous Receiver Transmitter (AUSART) (only MCP19215): - 8 and 9-Bit Data Operations - Address Detect - Asynchronous and Synchronous Operating Modes  2017 Microchip Technology Inc. DS20005681A-page 1 1 page MCP19214/5 TABLE 2: 32-PIN QFN (MCP19215) SUMMARY Basic Additional GPA0 1 Y AN0 — — — IOC Y — Analog Circuitry Debug Out(1) GPA1 2 Y AN1 — — — IOC Y —— GPA2 3 Y AN2 T0CKI — — IOC INT Y —— GPB4 GPA3 4 Y AN5 5 Y AN3 — — — — — IOC — IOC Y ICSPDAT — Y — Digital Circuitry Debug Out(1) GPA7 6 N — — SCL — IOC Y — Dual Capture/Single Compare1 Input GPB0 GPA5 7N — 8N — — SDA —— — IOC Y — IOC(2) Y(3) —— MCLR — GPB7 9 N — — — — IOC Y —— GPA6 10 N — — — — IOC Y —— AGND/DGND 11 — — — — — — — ISN2 12 — — — — — — — —— — Current Sense Amplifier Negative Input for PWM Channel 2 ISP2 13 — — — — — — — — Current Sense Amplifier Positive Input for PWM Channel 2 CCOMP2 14 — — — — — — — — The Output of the Error Amplifier of the Current Loop of PWM Channel 2 VCOMP2 15 — — — — — — — — The Output of the Error Amplifier of the Voltage Loop of PWM Channel 2 VFB2 16 — — — — — — — — Feedback Input of the Voltage Loop of PWM Channel 2 IP2 17 — — — — — — — — Primary Input Current Sense of PWM Channel 2 PDRV2 18 — — — — — — — — Gate Drive Output of PWM Channel 2 PGND 19 — — — — — — — PDRV1 20 — — — — — — — — Power Ground — Gate Drive Output of PWM Channel 1 VDR 21 — — — — — — — VDD 22 — — — — — — — VIN 23 — — — — — — — IP1 24 — — — — — — — — Gate Drives Supply Voltage — VDD Output (+5V) — Input Supply Voltage — Primary Input Current Sense of PWM Channel 1 VFB1 25 — — — — — — — — Feedback Input of the Voltage Loop of PWM Channel 1 Note 1: 2: 3: The Analog/Digital Debug Output is selected through the control of the ABECON1 register. The IOC is disabled when MCLR is enabled. Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control.  2017 Microchip Technology Inc. DS20005681A-page 5 5 Page MCP19214/5 FIGURE 1-2: VIN MCP19214 DUAL LED STRING APPLICATION DIAGRAM VIN VDD VDR PDRV1 IP1 ISP1 ISN1 VFB1 VCOMP1 ICOMP1 8 I/O PDRV2 IP2 ISP2 MCP19214 ISN2 VFB2 VCOMP2 ICOMP2 AGND PGND Second Flyback Channel  2017 Microchip Technology Inc. DS20005681A-page 11 11 Page

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PDF Descargar	[ Datasheet MCP19214.PDF ]

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