DM300023 Microchip Technology, DM300023 Datasheet - Page 16

• Manufacturer Part Number: DM300023
• Description: KIT DEMO DSPICDEM SMPS BUCK
• Manufacturer: Microchip Technology
• Series: dsPIC™r

Specifications of DM300023

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Voltage - Input: 7 ~ 15V
• Regulator Topology: Buck
• Board Type: Fully Populated
• Utilized Ic / Part: dsPIC30F2020
• Processor To Be Evaluated: dsPIC30F202x/1010
• Interface Type: RS-232
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Output: -
• Power - Output: -
• Frequency - Switching: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

dsPICDEM™ SMPS Buck Development Board
DS70181A-page 12
2.1.1
The dsPICDEM™ SMPS Buck Development Board obtains +9V power from a power
connector for a +9V AC/DC wall adapter as well as auxiliary power connection points
(AUX PWR IN). A separate +5V DC regulator provides the operating voltage (V
required by the dsPIC30F2020 device.
2.1.2
An RJ11 female connector (J5) connects the MPLAB
device for programming and debugging.
2.1.3
An RS-232 serial communication port (J6) is provided for monitoring and controlling the
power supply by a remote processor. The PGM DEBUG switch (SW2) must be in set
in program mode position (PGM) to communicate via the UART.
2.1.4
An external load can be connected to VOUT1 through connector J1. An on-board 5Ω
5 watt resistor is connected at the output of VOUT1 through MOSFET U6 to optionally
load the first buck converter circuit. This load can be enabled or disabled in software.
See Figure A-3: “dsPICDEM™ SMPS Buck Development Board Schematic 2 of 3”
2.1.5
An external load can be connected to VOUT2 through connector J1.See Figure
A-4: “dsPICDEM™ SMPS Buck Development Board Schematic 3 of 3”
2.1.6
Header J7 is an expansion connector that matches the dsPIC30F2020 device pins (see
Table 2-2 for pin usage information).
Input Power Connector
ICD Connector
RS-232 Serial Port
VOUT1
VOUT2
Expansion Header
®
ICD 2 to the dsPIC30F2020
© 2006 Microchip Technology Inc.
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