Microchip Technology DIGITAL POWER, Руководство пользователя

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Digital Power Development Board User’s Guide
DS50002814A-page 12
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2018 Microchip Technology Inc.
1.2.9 ICSP™ Programming Port
Dedicated lines for programming the MCU device on the inserted DP PIM board are
accessible via an RJ-25 modular connector or on a 6-pin header.
1.2.10 General Purpose Soldering Pad Area
The soldering point matrix on the bottom of the board with Plated-Through-Hole (PTH)
pads can be used to assemble any small extension circuitry needed for testing or
prototyping.
1.2.11 Solder Pad for Ground Connection
A bare gold-plated copper area is located on the upper and the bottom edges of the
board. These areas can either be used for soldering a solid ground connection or for
attaching alligator clips to connect instrument ground.
1.2.12 USB Connector
The Digital Power Development Board can be powered via the micro USB connector,
J2, at the right side of the board. The DP PIM board supply input and the +5V power
rail for the mikroBUS click board are directly connected to the positive supply line of the
USB. This connector is only for powering. The input voltage must be in the range of
3.6V to 6.3V. The mikroBUS click board can tighten this constraint; please refer to the
specifications before powering. Communication is not possible via this USB connector.
1.2.13 On-Board LDO
The +3.3V power rail for the mikroBUS click board is supplied by the on-board LDO
(Microchip’s MCP1755), connected to the +5V supply rail coming from the USB. The
total load for the mikroBUS click board supply current and the additional load caused
by its active GPIO lines should not exceed 300 mA. The DC level insertion
potentiometer and the pull-up resistor of the user push button are also connected to this
line. The Power Good output drives the Reset line of the board, ensuring stable
performance.
1.2.14 Power Indicator LED
The green LED (LD1) is on when the supply voltage is applied on the +5V supply rail.
1.2.15 User LEDs
The Digital Power Development Board has two user-programmable on-board LEDs.
The red LED is connected to TP52, while the green LED is connected to TP54. Logic
level high drives the LEDs.
1.3 ELECTRICAL CHARACTERISTICS
Table 1-1 shows the electrical characteristics of the Digital Power Development Board.
TABLE 1-1: ELECTRICAL CHARACTERISTICS
Parameter Value
Input Voltage Range 3.6 V
DC
to 6.3 V
DC
Current Consumption <10 mA
Maximal Load Current 1A
Operating Temperature Range 0°C to +65°C