Datasheet > EVAL-ADM2914EBZ

EVAL-ADM2914EBZ

更新时间： 2024-01-06 17:00:09

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	371K
描述
Quad UV/OV Positive/Negative

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中文翻译

获取价格

数据手册

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EVAL-ADM2914EBZ 数据手册

Quad UV/OV Positive/Negative

Voltage Supervisor

ADM2914

FEATURES

FUNCTIONAL BLOCK DIAGRAM

TIMER

Quad UV/OV positive/negative supervisor

Supervises up to 2 negative rails

Adjustable UV and OV input thresholds

High threshold accuracy over temperature: 1.5%

1 V buffered reference output

Open-drain UV and OV reset outputs

Adjustable reset timeout with disable option

Outputs guaranteed down to V_CCof 1 V

Glitch immunity

ADM2914

VH1

TIMER

500mV

VL1

VH2

62 μA supply current

16-lead QSOP package

VL2

VH3

OUTPUT

LOGIC

APPLICATIONS

500mV

Server supply monitoring

FPGA/DSP core and I/O voltage monitoring

Telecommunications equipment

Medical equipment

VL3

VH4

MUX

LOGIC

REF

LATCH/DIS

REF

VL4

SEL

GND

Figure 1.

GENERAL DESCRIPTION

the V_CCpin to limit the current flow into the V_CCpin to no

greater than 10 mA. The ADM2914 uses the internal shunt

regulator to regulate V_CCif the supply line exceeds the absolute

maximum ratings.

The ADM2914 is a quad voltage supervisory IC ideally suited

for monitoring multiple rails in a wide range of applications.

Each monitored rail has two dedicated input pins, VHx and VLx,

which allows each rail to be monitored for both overvoltage

(OV) and undervoltage (UV) conditions. A common active low

The ADM2914 is available in two models. The ADM2914-1

offers a latching overvoltage output that can be cleared by

undervoltage ( ) and overvoltage ( ) pin is shared by each

of the monitored voltage rails.

LATCH

toggling the

input pin. The ADM2914-2 has a disable

output

pin that can override and disable both the

signals.

and

The ADM2914 includes a 1 V buffered reference output, REF,

that acts as an offset when monitoring a negative voltage. The

three-state SEL pin determines the polarity of the third and

fourth inputs, that is, it configures the device to monitor

positive or negative supplies.

The ADM2914 is available in a 16-lead QSOP package. The

device operates over the extended temperature range of −40°C

to +125°C.

The device incorporates an internal shunt regulator that enables

the device to be used in higher voltage systems. This feature

requires a resistor to be placed between the main supply rail and

Rev. B

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

www.analog.com

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