参数资料
| 型号： | EVAL-ADM1191EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/16页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADM1191 |
| 产品培训模块： | Hot Swap Design |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADM1191 |
| 主要属性： | 数字电流和电压监视，通过片上 12 位模数转换器进行 |
| 次要属性： | I²C 接口 |
| 已供物品： | 板 |
| 相关产品： | ADM1191-2ARMZ-R7DKR-ND - IC PWR MONITOR DGTL ALERT 10MSOP ADM1191-2ARMZ-R7CT-ND - IC PWR MONITOR DGTL ALERT 10MSOP ADM1191-2ARMZ-R7TR-ND - IC PWR MONITOR DGTL ALERT 10MSOP |
Data Sheet
APPLICATIONS INFORMATION
ALERTB OUTPUT
The ALERTB output is an open-drain pin with 30 V tolerance.
This output can be used as an overcurrent flag by connecting it
ADM1191
condition at a different current level, with a gain of 18. See
to the general-purpose logic input of a controller. During normal
operation, this output is pulled high (an external pull-up resistor
should be used because this is an open-drain pin). When an
overcurrent condition occurs, the ADM1191 pulls this output low.
The ALERTB pin is disabled by default on power up. See the
VCC
R SENSE
SENSE
I LOAD
ADM1191
ALERT_EN register to enable.
3.15V TO 26V R SENSE
A
CURRENT
SENSE
AMPLIFIER
VCC
SENSE
CONTROLLER
APPLIED
VOLTAGE
ALERT
ALERTB
ALERTB
ADM1191
INTERRUPT
P = VI
SETV
COMPARATOR
SETV
SDA
SDA
SCL
CONV
A1
SCL
CONV
Figure 26. SETV Operation
KELVIN SENSE RESISTOR CONNECTION
GND
A0
When using a low value sense resistor for high current
Figure 25. Using the ALERTB Output as an Interrupt
SETV PIN
The SETV pin allows the user to adjust the current level that
trips the ALERTB output. The output of the current sense amplifier
is compared with the voltage driven onto the SETV pin. If the
current sense amplifier output is higher than the SETV voltage,
the output of the comparator asserts. By driving a different
voltage onto the SETV pin, the ADM1191 detects an overcurrent
measurement, the problem of parasitic series resistance can
arise. The pad and solder resistance can be a substantial fraction
of the rated resistance, making the total resistance larger than
expected. This error problem can be largely avoided by using a
Kelvin sense connection. This type of connection separates the
high current path through the resistor and the voltage drop
across the resistor. A 4-pad resistor may be used or a split pad
layout can be used with a 2-pad sense resistor to achieve Kelvin
sensing.
Rev. C | Page 15 of 16
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| EVAL-ADM1276EBZ | BOARD EVAL FOR ADM1276 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADM1191EBZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Digital Power Monitor with Convert Pin and ALERTB O |
| EVAL-ADM1192EBZ | 功能描述:BOARD EVALUATION FOR ADM1192 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-ADM1275EBZ | 功能描述:BOARD EVALUATION FOR ADM1275 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-ADM1276EBZ | 功能描述:BOARD EVAL FOR ADM1276 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-ADM2481EBZ | 功能描述:BOARD EVAL FOR ADM2481 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:* 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
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