参数资料
型号: 101-1262
厂商: Rabbit Semiconductor
文件页数: 16/120页
文件大小: 0K
描述: KIT DEV RCM5400W US/INTERNATIONL
标准包装: 1
系列: RabbitCore 5000
类型: Wi-Fi / 802.11.b
频率: 2.4GHz
适用于相关产品: RCM5400W
已供物品: 板,模块,线缆,CD,电源
其它名称: 316-1138
106
RabbitCore RCM4400W
The drain on the battery by the RCM5400W is typically 7.5 A when no other power is
supplied. If a 165 mAh battery is used, the battery can last about 2.5 years:
The actual battery life in your application will depend on the current drawn by components
not on the RCM5400W and on the storage capacity of the battery. The RCM5400W does not
drain the battery while it is powered up normally.
Cycle the main power off/on after you install a backup battery for the first time, and when-
ever you replace the battery. This step will minimize the current drawn by the real-time
clock oscillator circuit from the backup battery should the RCM5400W experience a loss
of main power.
NOTE: Remember to cycle the main power off/on any time the RCM5400W is removed
from the Prototyping Board or motherboard since that is where the backup battery
would be located.
Rabbit’s Technical Note TN235, External 32.768 kHz Oscillator Circuits, provides addi-
tional information about the current draw by the real-time clock oscillator circuit.
C.1.2 Battery-Backup Circuit
Figure C-2 shows the battery-backup circuit.
Figure C-2. RCM5400W Backup Battery Circuit
The battery-backup circuit serves three purposes:
It reduces the battery voltage to the SRAM and to the real-time clock, thereby limiting
the current consumed by the real-time clock and lengthening the battery life.
It ensures that current can flow only out of the battery to prevent charging the battery.
A voltage, VRAM, is supplied to Y3, the integrated 32.768 kHz oscillator, which keeps
working when the voltage begins to drop.
165 mAh
7.5 A
------------------------
2.5 years.
=
VRAM
100 kW
R14
VBAT-EXT
External Battery
D1
Y3
OSC
相关PDF资料
PDF描述
X-10GW21 SWITCH LEVER SPDT 10A SOLDER
X-10GW2-B SWITCH ROLLER SPDT 10A SCREW
X-10GW2 SWITCH LEVER SPDT 10A SOLDER
X-10GW SWITCH LEVER SPDT 10A SOLDER
X-10GM2 SWITCH BASIC SPDT 10A SOLDER
相关代理商/技术参数
参数描述
10112620-106LF 功能描述:集管和线壳 RoHS:否 产品种类:1.0MM Rectangular Connectors 产品类型:Headers - Pin Strip 系列:DF50 触点类型:Pin (Male) 节距:1 mm 位置/触点数量:16 排数:1 安装风格:SMD/SMT 安装角:Right 端接类型:Solder 外壳材料:Liquid Crystal Polymer (LCP) 触点材料:Brass 触点电镀:Gold 制造商:Hirose Connector
10112620-142LF 制造商:FCI 功能描述:578-5NPF-BERGSTIK STR 制造商:FCI 功能描述:HEADER BERGSTIK STR 制造商:FCI 功能描述:OEM ITEM 578-5NPF-BERGSTIK STR
1011-262-0305 制造商:TE Connectivity / Deutsch 功能描述:BACKSHELL DT RECEPTACLE R/A 3WAY
10112626-101LF 功能描述:I/O 连接器 MINI-SAS HD 1X1 EXT BOARD CONN RoHS:否 制造商:Hirose Connector 产品:Plugs 系列:DH 端口数量: 位置/触点数量:51 节距:1 mm 触点电镀: 触点材料: 型式:Male 电流额定值:0.5 A 安装风格:Cable 端接类型:IDC 颜色: 安装角:
10112626102L 制造商:FCI 功能描述:MINI SAS 1X4 EXTERNAL