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参数资料
| 型号： | DS2703G+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC BATT AUTHENTICAT SHA-1 8-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 10,000 |
| 功能： | 电池验证 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TDFN |
| 供应商设备封装： | 8-TDFN-EP（2x3） |
| 包装： | 带卷 (TR) |
DS2703 SHA-1 Battery Pack Authentication IC
SET OVERDRIVE [8Bh]. This command sets the 1-Wire Overdrive bit to select the Overdrive 1-Wire timings
shown in the Electrical Characteristics table. The Overdrive bit is stored in EEPROM so that the programmed
speed selection can be recalled on initial power up. The host must apply a programming pulse to complete the
command.
Table 5. 1-Wire Speed Control Function Commands
COMMAND
Clear Overdrive
Set Overdrive
HEX
8D
8B
FUNCTION
Clears the Overdrive 1-Wire Speed bit to select Standard 1-Wire
timings
Sets the Overdrive 1-Wire Speed bit to select Overdrive 1-Wire
timings
THERMISTOR MEASUREMENT
The DS2703’s 1-Wire interface allows a thermistor to be multiplexed on the DQ line for thermal measurements of
the cell pack without adding an additional pack connection. See the Typical Operating Circuit, Figure 5. The
thermistor is connected between the DQ and THM pins. THM is normally high impedance to prevent the thermistor
from interfering with 1-Wire communication. When an Activate THM command is received, THM is internally driven
to VSS and the DQ pin becomes high impedance allowing the thermistor resistance to be measured. See the
timing diagram in Figure 12.
Figure 2. Thermistor Mode Duration when C VB is .22μF
1000
Normal Mode of
Operation Restored
Worst Case Slowest
Transition
800
600
Typical Transition
Time
400
Worst Case Quickest
Transition Time
200
Valid Thermistor
Measurement Period
0
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
DQ Pullup Voltage (V)
9 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2703K | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| DS2703U | 制造商:Maxim Integrated Products 功能描述:BATT PACK ID W/SHA-1 8PIN USOP - Rail/Tube |
| DS2703U/T&R | 制造商:Maxim Integrated Products 功能描述:BATT PACK ID W/SHA-1 8PIN USOP T&R - Tape and Reel |
| DS2703U+ | 功能描述:电池管理 SHA-1 Battery Pack Authentication RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| DS2703U+R | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:SHA-1 Battery Pack Authentication IC |
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