MCP1630V

`High-Speed PWM Operation (12ns Current Sense to Output Delay)
`Operating Temperature Range:
--40 to +125
`Precise Peak Current Limit (±5%) MCP1630)
`Voltage Mode and Average Current Mode Control (MCP1630V)
`CMOS Output Driver (drives MOSFET driver or  low-side N-channel MOSFET directly)
`External Oscillator Input (from PICmicro^®Microcontroller (MCU))
`External Voltage Reference Input (for adjustable voltage or current output application)
`Peak Current Mode Operation > 1MHz
`Low Operating Current:2.8mA (typ.)
`Fast Output Rise and Fall Times: 5.9ns and  6.2ns
`Undervoltage Lockout (UVLO) Protection
`Output Short Circuit Protection
`Overtemperature Protection

·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

Absolute Maximum Ratings *
V_DD .................................................................................6.0V
Maximum Voltage on Any Pin ..(V_GND - 0.3)V to (V _IN  + 0.3)V
V_EXT Short Circuit Current...........................Internally Limited
Storage temperature......................................-65 to +150
Maximum Junction Temperature, TJ..............................+150
Continuous Operating Temperature Range....-40 to +125
ESD protection on all pins, HBM........................................ 3kV

* Notice: Stresses above those listed under 'Maximu Ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

The MCP1630V is a high-speed Pulse Width Modula- tor (PWM) used to develop intelligent power systems.
When used with a microcontroller unit (MCU), the MCP1630/V will control the power system duty cycle to provide output voltage or current regulation. The MCU MCP1630V can be used to adjust output voltage or current, switch- ing frequency, maximum duty cycle and other features that make the power system more intelligent.

Typical applications of MCP1630V 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 MCP1630V inputs were developed to be easily attached to the I/O of a MCU. The MCU supplies the oscillator and reference to the MCP1630V 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 MCU. The reference input can be external, a D/A Converter (DAC) output or as simple as an I/O output from the MCU. 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 of MCP1630V is set on the peak current. With the fast comparator speed (typically 12ns), 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-speedPWM controllers.

For Voltage mode or Average Current mode applications, the MCP1630V provides a larger range for the external ramp voltage.

Additional protection features include: UVLO, overtemperature and overcurrent.