ADM6339GARJZ-RL7

更新时间： 2024-11-06 12:33:55

品牌	Logo	应用领域
亚德诺 - ADI		微处理器监控
页数	文件大小	规格书
12页	203K
描述
Quad Voltage Microprocessor Supervisory Circuit

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ADM6339GARJZ-RL7 数据手册

Quad Voltage Microprocessor

Supervisory Circuit

ADM6339

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Accurate monitoring of up to four power supply voltages

6 factory-set threshold options: −5.0 V, +1.8 V, +2.5 V, +3.0 V,

+3.3 V, and +5.0 V

Adjustable input threshold options: −0.5 V ( 2.0% accuracy),

+0.62 V ( 0.8% accuracy), and +1.23 V

200 ms typical reset timeout

Open-drain RESET output (10 μA internal pull-up)

Reset output stage: active low, valid to IN₁= 1 V or IN₂= 1 V

Low power consumption (55 μA)

5V PULLUP

RESET

200ms

TIMEOUT

Glitch immunity

Specified from −40°C to +85°C

ADM6339

REF

6-lead SOT-23 package

Figure 1.

APPLICATIONS

Telecommunications

Microprocessor systems

Data storage equipment

Servers/workstations

GENERAL DESCRIPTION

active low output asserts, triggering a system reset. The output

is open drain with a weak internal pull-up to the monitored IN₂

supply of typically 10 μA. After all voltages exceed the selected

threshold level, the reset signal remains low for the reset

timeout period (200 ms typical).

The ADM6339 is a high accuracy supervisory circuit capable of

monitoring up to four system supply voltages.

The ADM6339 incorporates a variety of internally pretrimmed

undervoltage threshold options for monitoring −5.0 V, +1.8 V,

+2.5 V, +3.0 V, +3.3 V, and +5.0 V supply voltages. Tolerance levels

of 5% and 10% are available. The device is also available

with one to three adjustable threshold options. The adjustable

voltage threshold options are +1.23 V, +0.62 V, and −0.5 V. See

the Ordering Guide section for a list and description of all

available options.

The ADM6339 output remains valid as long as IN₁or IN₂exceeds

1 V. Unused monitored inputs should not be allowed to float or

to be grounded; instead, they should be connected to a supply

voltage greater than their specified threshold voltages.

The ADM6339 is available in a 6-lead SOT-23 package. The

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

to +85°C.

If a monitored power supply voltage decreases below the mini-

mum voltage threshold (or rises above the maximum voltage

threshold for the −0.5 V and −5.0 V input options), a single

Rev. A

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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