参数资料
型号: 20-101-0492
厂商: Rabbit Semiconductor
文件页数: 79/110页
文件大小: 0K
描述: MODULE OP6800 FULL-FEATURED
标准包装: 1
系列: SBC
模块/板类型: 单板计算机模块
适用于相关产品: OP6800
其它名称: 20-101-492
20-101-492-ND
66
MiniCom (OP6800)
The Demonstration Board has an onboard LM7805 linear regulator for the circuits on the
Demonstration Board only. Its major drawback is its inefficiency, which is directly propor-
tional to the voltage drop across it. The voltage drop creates heat and wastes power.
You may wish to use a switching power supply in your applications where better effi-
ciency is desirable. The LM2575 is an example of an easy-to-use switching voltage regu-
lator. This part greatly reduces the heat dissipation of the regulator. The drawback in using
a switching voltage regulator is its higher cost.
Figure C-3. Demonstration Board Power Supply
Capacitor C1 provides surge current protection for the voltage regulator, and allows the
external power supply to be located some distance away.
Be careful to limit the current draw in any prototype circuits you build on the prototyping
area of the Demonstration Board to avoid operating the linear regulator outside its recom-
mended limits. The LEDs and buzzer together can draw up to 70 mA, which still leaves
some current capacity for your own circuits (see Table C-1) if you plan to use them with
the LEDs and the buzzer.
If you need additional current from the linear regulator beyond that specified in Table C-1,
consider adding a heat sink to the linear regulator (remember to use silicone grease
between the tab and the heat sink), or use a lower voltage power supply.
LINEAR POWER SUPPLY
POWER
IN
J5
10 mF
7805
U1
+RAW
Vcc
C2
C1
10 mF
1
2
3
2
1
相关PDF资料
PDF描述
101-0492 INTERFACE OP6800 W/ETHERNET PORT
11FMN-BMTR-A-TB CONN FMN HSNG 11POS SGL REV SMD
11FMN-BMT-A-TF CONN FMN HSNG 11POS SNGL NOR SMD
AT24C01-10SI-2.7 IC EEPROM 1KBIT 400KHZ 8SOIC
AT24C01-10PI-2.7 IC EEPROM 1KBIT 400KHZ 8DIP
相关代理商/技术参数
参数描述
20-101-0494 功能描述:模块化系统 - SOM RCM2250 RabbitCore Module RoHS:否 制造商:Digi International 外观尺寸:ConnectCore 9P 处理器类型:ARM926EJ-S 频率:150 MHz 存储容量:8 MB, 16 MB 存储类型:NOR Flash, SDRAM 接口类型:I2C, SPI, UART 工作电源电压:3.3 V 最大工作温度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in
20-101-0495 功能描述:处理器配件 BASEPLATE RoHS:否 制造商:Olimex Ltd. 产品:Cable 用于:
20-101-0497 功能描述:单板计算机 OP6810 RoHS:否 制造商:Ampro By ADLINK 外观尺寸:EPIC 处理器类型:Intel Atom D510 频率:1.66 GHz 存储容量:2 GB (max) 存储类型:DDR2, L2 Cache 接口类型:Ethernet, PS/2, SATA, Serial, USB 工作电源电压:5 V, 12 V 功耗:13 W 最大工作温度:+ 70 C 尺寸:165.1 mm x 114.3 mm
201-01050 功能描述:铝质电解电容器 - 带引线 1 uF Electrolytic Capacitor RoHS:否 制造商:Kemet 引线类型: 电容:220 uF 容差:20 % 电压额定值:25 V 工作温度范围: 端接类型:Radial 外壳直径:8 mm 外壳长度:11 mm 引线间隔:5 mm 产品:General Purpose Electrolytic Capacitors 封装:Bulk
201-0105-01 功能描述:印刷电路板和试验板 JTAG 20 Pin Connector RoHS:否 制造商:3M Electronic Solutions Division 产品:Jumper & Insulated Wires 描述/功能:Jumper wire, 22 AWG 0.1 inch 长度:0.1 in 宽度: