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參數(shù)資料
| 型號(hào)： | 101-0405 |
| 廠商： | Rabbit Semiconductor |
| 文件頁數(shù)： | 65/80頁 |
| 文件大?。?/td> | 0K |
| 描述： | MODULE RABBITCORE RCM2010 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | RabbitCore® |
| 模塊/板類型： | MPU 核心模塊 |
| 適用于相關(guān)產(chǎn)品： | RCM2010 |
| 其它名稱： | 316-1009 |
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RabbitCore RCM2000
The drain on the battery by the RCM2000 is typically 10 A when no other power is sup-
plied. If a 950 mAh battery is used, the battery can last more than 6 years:
Since the shelf life of the battery is 10 years, the battery can last for its full shelf life. The
actual life in your application will depend on the current drawn by components not on the
RCM2000 and the storage capacity of the battery.
C.1.2 Battery-Backup 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.
VRAM and Vcc are nearly equal (<100 mV, typically 10 mV) when power is supplied to
the RCM2000.
Figure C-2 shows the RCM2000 battery-backup circuit.
Figure C-2. RCM2000 Battery-Backup Circuit
VRAM is also available on pin 34 of header J2 to facilitate battery backup of the external
circuit. Note that the recommended minimum resistive load at VRAM is 100 k
, and new
battery life calculations should be done to take external loading into account.
950 mAh
10 A
------------------------
10.8 years (shelf life = 10 years).
=
R11
10 kW
VRAM
VBAT-EXT
External Battery
R12
47 kW
2 kW
R14
RT1
22 kW
mPBAT
Vcc
22 kW
R7
47 kW
U5
pin 5
R8
D2
D1
D3
T
thermistor
C19
1 nF
C9
1 nF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 101-0404 | MODULE RABBITCORE RCM2000 |
| 006200505130000+ | CONN FFC/FPC 5POS 1MM R/A SMD |
| 006208505110000 | CONN FFC/FPC 5POS 1MM ZIF SMD |
| 006208505110000+ | CONN FFC/FPC 5POS 1MM ZIF SMD |
| 395-030-541-204 | CARD EDGE 30POS DL .100X.200 BLK |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 101-0406 | 功能描述:開發(fā)板和工具包 - 其他處理器 Cloning Board RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評(píng)估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| 1010-406 | 制造商:MISCELLANEOUS 功能描述: |
| 101-040600-14 | 制造商:Distributed By MCM 功能描述:RJ11 PLUGS STRANDED FLAT WIREPK10 |
| 101-040600-24 | 制造商:Distributed By MCM 功能描述:RJ11 PLUGS SOLID FLAT WIRE PK10 |
| 101-040610-14 | 制造商:Distributed By MCM 功能描述:RJ11 PLUGS STRANDEDROUND WIRE PK10 |
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