Datasheet > ADM1192

ADM1192

更新时间： 2024-11-29 04:31:19

品牌	Logo	应用领域
亚德诺 - ADI		监控
页数	文件大小	规格书
20页	389K
描述
Digital Power Monitor with Clear Pin and ALERT Output

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中文翻译

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数据手册

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ADM1192 数据手册

Digital Power Monitor

with Clear Pin and ALERT Output

ADM1192

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Powered from 3.15 V to 26 V

Precision current sense amplifier

Precision voltage input

ADM1192

SDA

VCC

12-bit ADC for current and voltage readback

12-BIT

ADC

SCL

ADR

I C

ALERT output allows basic P-channel FET hot swap

up to 26 V

SETV input for setting overcurrent alert threshold

Programmable overcurrent filtering via TIMER pin

CLRB input pin

I²C® fast mode-compliant interface (400 kHz maximum)

10-lead MSOP

SENSE

MUX

CURRENT

SENSE

AMPLIFIER

ALERT

SETV

COMPARATOR

APPLICATIONS

Power monitoring/power budgeting

Central office equipment

GND

CLRB

TIMER

Figure 1.

Telecommunication and data communication equipment

PCs/servers

3.15V TO 26V

SENSE

GENERAL DESCRIPTION

VCC

SENSE

ALERT

The ADM1192 is an integrated current sense amplifier that

offers digital current and voltage monitoring via an on-chip,

12-bit analog-to-digital converter (ADC), communicated

through an I²C interface.

CONTROLLER

ALERT

ADM1192

P = VI

SDA

SCL

SETV

SCL

CLRB

An internal current sense amplifier senses voltage across the sense

resistor in the power path via the VCC pin and the SENSE pin.

TIMER

ADR

GND

A 12-bit ADC can measure the current seen in the sense resistor

and in the supply voltage on the VCC pin. An industry-standard

I²C interface allows a controller to read current and voltage

data from the ADC. Measurements can be initiated by an I²C

command. Alternatively, the ADC can run continuously, and

the user can read the latest conversion data whenever it is

required. Up to four unique I²C addresses can be created,

depending on the way the ADR pin is connected.

Figure 2. Applications Diagram

The ALERT output can be used as a flag to warn a micro-

controller or field programmable gate array (FPGA) of an

overcurrent condition. ALERT outputs of multiple ADM1192

devices can be tied together and used as a combined alert.

A SETV pin is also included. A voltage applied to this pin is

internally compared to the output voltage on the current sense

amplifier. The output of the SETV comparator asserts when the

current sense amplifier output exceeds the SETV voltage. This

event is detected at the ALERT block. The ALERT block then

charges up the external TIMER capacitor with a fixed current.

When this timing cycle is complete, the ALERT output asserts.

A basic P-channel FET hot swap circuit can be implemented

with the ALERT output. The value of the TIMER capacitor

should be set so that the charging time of this capacitor is much

longer than the period where a higher than nominal inrush

current may be flowing.

The ADM1192 is packaged in a 10-lead MSOP.

Rev. 0

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

12 3 4 5 6 7...20

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与ADM1192相关器件

型号	品牌	获取价格	描述	数据表
ADM1192_08	ADI	获取价格	Digital Power Monitor with Clear Pin and ALERT Output
ADM1192-1ARMZ-R7	ADI	获取价格	Digital Power Monitor with Clear Pin and ALERT Output
ADM1201AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1202-1AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1202-2AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1203-1AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1203-2AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1203-3AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1203-4AUJ	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, MO-193BA, TSOT-8, Power Management Circuit
ADM1232	ADI	获取价格	Microprocessor Supervisory Circuit

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