Microchip Technology MCP1630 Evaluation Board MCP1630RD-SALED MCP1630RD-SALED Data Sheet

 2004-2013 Microchip Technology Inc.

DS21896C-page 1

• High-Speed PWM Operation (12 ns Current 

Sense to Output Delay)

• Operating Temperature Range:

- -40°C to +125°C

• 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 PIC

®

 Microcontroller (MCU))

• External Voltage Reference Input (for adjustable 

voltage or current output application)

• Peak Current Mode Operation > 1 MHz

• Low Operating Current: 2.8 mA (typ.)

• Fast Output Rise and Fall Times: 5.9 ns and 

6.2 ns

• 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 

PIC

®

 microcontroller)

• Buck/Boost/Buck-Boost/SEPIC/Flyback/Isolated 

Converters

• Parallel Power Supplies

• “MCP1630 NiMH Demo Board User’s Guide”, 

Microchip Technology Inc., DS51505, 2004

• “MCP1630 Low-Cost Li-Ion Battery Charger 

User’s Guide”, Microchip Technology Inc., 
DS51555, 2005

• “MCP1630 Li-Ion Multi-Bay Battery Charger 

User’s Guide”, Microchip Technology Inc., 
DS51515, 2005

• “MCP1630 Dual Buck Demo Board User’s Guide”, 

Microchip Technology Inc., DS51531, 2005

The MCP1630/V 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
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 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/V inputs were developed to be easily
attached to the I/O of a MCU. The MCU supplies the
oscillator and reference to the MCP1630/V 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 is set
on the peak current. With the fast comparator speed
(typically 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.

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.

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8

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5

FB

CS

OSC IN

COMP

V

IN

V

REF

V

EXT

GND

1

2

3

4

8

7

6

5

FB

CS

OSC IN

COMP

V

IN

V

REF

V

EXT

GND