101-0402 Rabbit Semiconductor, 101-0402 Datasheet - Page 65

• Manufacturer Part Number: 101-0402
• Description: KIT DEV TCP/IP 2000 INTL
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 2000r
• Type: MPU Moduler

Specifications of 101-0402

• Contents: RabbitCore Module, Dev. Board, Cable and Dynamic C® CD-Rom
• For Use With/related Products: RCM2000, RCM2010, RCM2020
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

B.1 Power Supplies
Power is supplied to the TCP/IP Development Board from an external source either
through header J7 or from another TCP/IP Development Board through header J5, the
RJ-12 jack.
The TCP/IP Development Board itself is protected against reverse polarity by Shottky
diodes at D6 and D7 as shown in Figure B-1. The Shottky diode has a low forward voltage
drop, 0.3 V, which keeps the minimum DCIN required to power the TCP/IP Development
Board lower than a normal silicon diode would allow.
Capacitor C28 provides surge current protection for the voltage regulator, and allows the
external power supply to be located some distance away from the TCP/IP Development
Board. A switching power regulator is used. The input voltage range is from 9 V to 40 V.
Getting Started
Appendix B describes the power circuitry distributed on the
TCP/IP Development Board.
A
Figure B-1. TCP/IP Development Board Power Supply Schematic
PPENDIX
B. P
OWER
M
ANAGEMENT
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