MCP1630DM-DDBS2 Microchip Technology, MCP1630DM-DDBS2 Datasheet - Page 9

• Manufacturer Part Number: MCP1630DM-DDBS2
• Description: BOARD DEMO BOOST COUPLED INDUCTR
• Manufacturer: Microchip Technology
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of MCP1630DM-DDBS2

• Main Purpose: DC/DC, Step Up
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 15 ~ 40V
• Current - Output: 30mA
• Voltage - Input: 3 ~ 5.5V
• Regulator Topology: Boost
• Frequency - Switching: 100kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MCP1630
• Output Voltage: 15 V to 40 V
• Product: Power Management Modules
• For Use With/related Products: MCP1630, PIC12F683
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1.1
© 2006 Microchip Technology Inc.
INTRODUCTION
In certain applications, a higher output voltage is required that needs to be driven from
a lower Input voltage (i.e., 3V). The selection of switching device for these applications
is faced with certain problems which are listed below.
• The high voltage MOSFET's generally do not operate with a low 3V gate drive
• The larger drain-source capacitance of high-voltage MOSFET's requires energy in
• The high voltage MOSFET's with low gate drive voltage are a rare commodity
The MCP1630 Coupled Inductor Boost Converter Demo Board reduces the
drain-to-source voltage on the main boost converter switch. This allows the use of low
gate threshold voltage switches for high voltage output boost applications.
The MCP1630 is a high-speed, microcontroller-adaptable, Pulse Width Modulator
(PWM). A coupled Inductor boost design with an MCP1630 device provides a viable
solution for obtaining high output voltages with low gate drive voltage.
This chapter covers the following topics.
• What is the MCP1630 Coupled Inductor Boost Converter Demo Board?
• What the MCP1630 Coupled Inductor Boost Converter Demo Board Kit includes
FIGURE 1-1:
Diagram.
the inductor to slew drain to output voltage, thus resulting in a loss in efficiency
compared to their lower voltage counterparts. For example, a high voltage
MOSFET of 40V to 60V is generally available with a gate drive voltage of 5-10V,
whereas, it's difficult to locate a high voltage MOSFET of 40V to 60V with a lower
gate drive of 3V. Also, high voltage MOSFET's are large and more expensive than
their low voltage counterparts
Input Voltage
Chapter 1. Product Overview
3.0V - 5.5V
CONVERTER DEMO BOARD USER’S GUIDE
MCP1630 COUPLED INDUCTOR BOOST
Microcontroller adaptable,
MCP1630 High-Speed,
Pulse width Modulator
MCP1630 Coupled Inductor Boost Converter Demo Board Block
Push Button
Switch
PIC12F683 for Osc Input
and V
REF
Temp Sensor
MCP9700
Coupled Inductor
Boost Converter
0 mA - 30 mA
15V - 40V
DS51612A-page 5
1W max.
Load