收藏本站
AVR454
Table 2-5. CONN1: Battery Pack Connections to Host or Charger
Pin
1
2
3
4
5
6
Name
B+
BATT
B-
SAFETY
SMBCLK
SMBDATA
Direction
I/O
Input
I/O
Output
I/O
I/O
Usage
Pack main positive high-current terminal
Charger Active signal
Pack main negative high-current terminal
Indicates pack safe/unsafe state
SMBus clock line
SMBus data line
2.1.5.1 Safety Signal
The PC0 I/O pin is used for the Safety Signal, as it is high-voltage compatible and is
also an output-only signal. The signal is impedance controlled. R26 provides a
permanent 10K resistance to ground so that whenever the pack is connected, the
Host or Charger sees a ‘Normal’ condition. When PC0 is driven low R22 provides a
1K resistance to GND, indicating a ‘Hot’ condition.
Additional I/O pins could be used, along with additional resistance values, to supply
all of the Safety Signal conditions indicated in the SMBus specification (see SMBus
spec. section 4.4.4 for more details).
2.1.5.2 Charger Active Signal (BATT)
When high voltage is present on the BATT pin and the AVR is in Power-Off mode, a
reset to occurs, thereby waking up a ‘sleeping’ pack when a charger is connected. A
diode is used to prevent internal battery voltage of the pack from being presented at
the pack’s external BATT terminal. BATT is also used to power the internal high-
voltage FET driver circuits for the Charge and Precharge FETs. Therefore the charger
must supply a voltage equal to B+ on the BATT signal. Note that since BATT is
connected via a diode as suggested, the FET pin drivers will only be able to bring the
gate to within a diode-drop of the BATT signal when turned off; the gate-source
resistors are left to further reduce the FET gate-source voltages to zero.
2.1.6 Test Points
The SB100 board has several test points for development purposes. Figure 2-6
shows their placements on the board.
Figure 2-6. Test point placements
7
2598C-AVR-06/06
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
ATAVRSB200 KIT EVAL FOR AVR SMART BATTERY
ATAVRSB201 KIT REF FOR AVR SMART BATTERY
ATDH1150USB ACCY USB CABLE JTAG ISP AT18F
ATDVK90CAN1 KIT DEV FOR AT90CAN128 MCU
ATEVK1104AU KIT EVAL AT32UC3A3256AU
ATEVK1105AU KIT EVAL AT32UC3A0512AU
ATEVK525 ADD ON KIT FOR STK525
ATEVK527 KIT EVAL PWM AVR USB 4 SERIES
相关代理商/技术参数
ATAVRSB200 功能描述:开发板和工具包 - AVR Development platform for SB20x ref design RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V
ATAVRSB201 功能描述:开发板和工具包 - AVR Development kit for ATMEGA16HVA RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V
ATAVRSB202 功能描述:开发板和工具包 - AVR Battery Mgmt Eval kit for ATMEGA32HVB RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V
ATAVRSBIN1 功能描述:多功能传感器开发工具 9DOF Inertial Sensor Board 1 RoHS:否 制造商:Texas Instruments 工具用于评估:LMP91200 接口类型:SPI 工作电压:1.8 V to 5.5 V 最大工作温度:
ATAVRSBIN2 功能描述:多功能传感器开发工具 9DOF Inertial Sensor Board 2 RoHS:否 制造商:Texas Instruments 工具用于评估:LMP91200 接口类型:SPI 工作电压:1.8 V to 5.5 V 最大工作温度:
ATAVRSBLP1 功能描述:光学传感器开发工具 Ambient Light and Proximity Snsr Brd RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度:
ATAVRSBPR1 功能描述:压力传感器开发工具 Barometric Pressure Sensor Board 1 RoHS:否 制造商:Freescale Semiconductor 工具用于评估:MPL3115A2 接口类型:USB 最大工作温度:
ATAVRSECURITYX 功能描述:安全/ 验证开发工具 Security Module Kit for Xplain Series RoHS:否 制造商:Digi International 产品:Development Kits 工具用于评估:XEB-AW140 接口类型:SPI, USB 工作电源电压:3.1 V to 3.6 V