参数资料
型号: 101-0521
厂商: Rabbit Semiconductor
文件页数: 25/138页
文件大小: 0K
描述: MODULE RABBITCORE RCM3210
标准包装: 1
系列: RabbitCore®
模块/板类型: MPU 核心模块
适用于相关产品: RCM3210
其它名称: 101-521
101-521-ND
114
RabbitCore RCM3200
The drain on the battery by the RCM3200 is typically 12 A when no other power is sup-
plied. If a 165 mAh battery is used, the battery can last almost 2 years:
The actual life in your application will depend on the current drawn by components, not
on the RCM3200 and the storage capacity of the battery. The RCM3200 does not drain the
battery while it is powered up normally.
Cycle the main power off/on on the RCM3200 after you install a backup battery for the
first time, and whenever you replace the battery. This step will minimize the current drawn
by the real-time clock oscillator circuit from the backup battery should the RCM3200
experience a loss of main power.
NOTE: Remember to cycle the main power off/on any time the RCM3200 is removed
from the Protoyping 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 the real-time clock oscillator circuit.
D.1.2 Battery-Backup Circuit
Figure D-2 shows the battery-backup circuit.
Figure D-2. RCM3200 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, VOSC, is supplied to U5, which keeps the 32.768 kHz oscillator working
when the voltage begins to drop.
165 mAh
12 A
------------------------
1.6 years.
=
VRAM
150 kW
R34
VBAT-EXT
External Battery
R33
47 kW
VOSC
D1
R32
100 W
C38
100 nF
C41
2.2 nF
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相关代理商/技术参数
参数描述
101-0522 功能描述:模块化系统 - SOM MICRO-CNTLR DAUG/BD 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
10-105220-25P 制造商:Amphenol Aerospace 功能描述:RECEPT
10-105220-25S 制造商:Amphenol Aerospace 功能描述:RECEPT
10-105220-26P 制造商:Amphenol Aerospace 功能描述:RECEPT
10-105220-26S 制造商:Amphenol Aerospace 功能描述:RECEPT