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MCP1630TEMS Datasheet(PDF) 1 Page - Microchip Technology |
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MCP1630TEMS Datasheet(HTML) 1 Page - Microchip Technology |
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1 / 18 page  2004 Microchip Technology Inc. DS21896A-page 1 MCP1630 Features • High-Speed PWM Operation (12 ns Current Sense to Output Delay) • Operating Temperature Range: -40°C to +125°C • Precise Peak Current Limit (±5%) • CMOS Output Driver (Drives MOSFET Driver or Low-Side N-channel MOSFET Directly) • External Oscillator Input (from PICmicro® Microcontroller) • External Voltage Reference Input (for adjustable voltage or current output application) • Peak Current Mode Operation to 1 MHz • Low Operating Current: 2.8 mA, typical • Fast Output Rise and Fall Times (5.9 ns and 6.2 ns) • Undervoltage Lockout • Output Short Circuit Protection • Overtemperature Protection Applications • Intelligent Power Systems • Smart Battery Charger Applications • Multiple Output/Multiple Phase Converters • Output Voltage Calibration • AC Power Factor Correction • VID Capability (Programmed and calibrated by PICmicro Microcontroller) • Buck/Boost/Buck-Boost/SEPIC/Flyback/Isolated Converters • Parallel Power Supplies Description The MCP1630 is a high-speed Pulse Width Modulator (PWM) used to develop intelligent power systems. When used with a microcontroller, the MCP1630 will control the power system duty cycle to provide output voltage or current regulation. The microcontroller can be used to adjust output voltage or current, switching frequency, maximum duty cycle and other features making the power system more intelligent and adaptable. Typical applications include smart battery chargers, intelligent power systems, brick DC/DC converters, AC power-factor correction, multiple output power supplies, multi-phase power supplies and more. The MCP1630 inputs were developed to be easily attached to the I/O of a microcontroller. The microcon- troller supplies the oscillator and reference to the MCP1630 to provide the most flexible and adaptable power system. The power system switching frequency and maximum duty cycle are set using the I/O of the microcontroller. The reference input can be external, a D/A converter output or as simple as an I/O output from the microcontroller. This enables the power system to adapt to many external signals and variables in order to optimize performance and facilitate calibration. When operating in current mode, a precise limit is set on the peak current. With the fast comparator speed (typi- cally 12 ns), the MCP1630 is capable of providing a tight limit on the maximum switch current over a wide input voltage range when compared to other high-speed PWM controllers. Additional protection features include: undervoltage lockout, overtemperature and overcurrent. Package Type MCP1630 1 2 3 4 8 7 6 5 COMP FB CS OSC IN VREF VIN VEXT GND 8-Pin MSOP High-Speed, Microcontroller-Adaptable, Pulse Width Modulator |
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