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参数资料
| 型号： | ADM1191 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Digital Power Monitor with Convert Pin and ALERTB O |
| 中文描述： | 数字电源监视器转换引脚和ALERTB ? |
| 文件页数： | 12/16页 |
| 文件大小： | 269K |
| 代理商： | ADM1191 |
ADM1191
WRITE EXTENDED BYTE
In the write extended byte operation, the master device writes
to one of the three extended registers of the slave device, as follows:
Rev. 0 | Page 12 of 16
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address, followed by the
write bit (low).
3.
The addressed slave device asserts an acknowledge on SDA.
4.
The master sends the register address byte. The MSB of
this byte is set to 1 to indicate an extended register write.
The two LSBs indicate which of the three extended registers is
to be written to (see Table 8). All other bits should be set to 0.
5.
The slave asserts an acknowledge on SDA.
6.
The master sends the command byte. The command byte
is identified by an MSB = 0. An MSB = 1 indicates an
extended register write.
7.
The slave asserts an acknowledge on SDA.
8.
The master asserts a stop condition on SDA to end the
transaction.
S
ASLAVE
REGISTER
ADDRESS
A P
REGISTER
DATA
A
1
2
3
4
5
6
7 8
0
Figure 21. Write Extended Byte
Table 9, Table 10, and Table 11 give details of each extended
register.
Table 8. Extended Register Addresses
A6
A5
A4
A3
0
0
0
0
0
0
0
0
0
0
0
0
A2
0
0
0
A1
0
1
1
A0
1
0
1
Extended Register
ALERT_EN
ALERT_TH
CONTROL
Table 9. ALERT_EN Register Operations
Bit
Default
Name
0
0
EN_ADC_OC1
Function
Enabled if a single ADC conversion on the I channel has exceeded the threshold set in the ALERT_TH
register.
Enabled if four consecutive ADC conversions on the I channel have exceeded the threshold set in the
ALERT_TH register.
Enables the OC_ALERT register. If an overcurrent condition is present, the OC_ALERT register captures
and latches this condition.
N/A.
Clears the ON_ALERT, OC_ALERT, and ADC_ALERT status bits in the status register. These can immediately
reset if the source of the alert has not been cleared or disabled with the other bits in this register. This bit
self-clears to 0 after the status register bits have been cleared.
1
0
EN_ADC_OC4
2
1
EN_OC_ALERT
3
4
0
0
EN_OFF_ALERT
CLEAR
Table 10. ALERT_TH Register Operations
Bit
Default
Function
7:0
FF
The ALERT_TH register sets the current level at which an alert occurs. Defaults to ADC full scale. The ALERT_TH 8-bit
number corresponds to the top eight bits of the current channel data.
Table 11. CONTROL Register Operations
Bit
Default
Name
Function
0
0
SWOFF
Forces the ALERTB pin to deassert. Can be active only if the EN_OFF_ALERT bit is high (see Table 9).
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| ADM1191_08 | 制造商:AD 制造商全称:Analog Devices 功能描述:Digital Power Monitor with Convert Pin and ALERTB Output |
| ADM1191-2ARMZ-R7 | 功能描述:IC PWR MONITOR DGTL ALERT 10MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 应用:热电冷却器 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.173"，4.40mm 宽）裸露焊盘 供应商设备封装:28-TSSOP 裸露焊盘 包装:管件 产品目录页面:1410 (CN2011-ZH PDF) |
| ADM1191-2ARMZ-R71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Digital Power Monitor with Convert Pin and ALERTB O |
| ADM1192 | 制造商:AD 制造商全称:Analog Devices 功能描述:Digital Power Monitor with Clear Pin and ALERT Output |
| ADM1192_08 | 制造商:AD 制造商全称:Analog Devices 功能描述:Digital Power Monitor with Clear Pin and ALERT Output |
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