Datasheet > ADM8618WCWAKSZ-RL7

ADM8618WCWAKSZ-RL7

更新时间： 2024-11-16 03:23:35

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
6页	121K
描述
IC IC,POWER SUPPLY SUPERVISOR,CMOS,TSSOP,4PIN,PLASTIC, Power Management Circuit

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Low-Voltage Manual Reset & Watchdog

Supervisory Circuits in 4-Lead SC70

Preliminary Technical Data

ADM8616/ADM8617/ADM8618

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Precision 1.8V to 5V Power Supply Monitoring

9 Reset Threshold Options:

1.58V to 4.63V

4 Reset Timeout Options:

ADM8616

1ms, 20ms, 140ms, 1120ms

Watchdog Timer

Reset Output Stages

RESET

GENERATOR

REF

Push-Pull Active-Low (ADM8616)

Open-Drain Active-Low (ADM8617)

Push-Pull Active-High (ADM8618)

Low Power Consumption (3µA)

Guaranteed Reset Output valid to V_CC=1V

Power Supply Glitch Immunity

Specified Over -40°C to +85°C Temperature Range

4-Lead SC70 Package

WATCHDOG

DETECTOR

GND

WDI

APPLICATIONS

Microprocessor Systems

Computers

Figure 1.

Controllers

Intelligent Instruments

Portable Equipment

GENERAL DESCRIPTION

Each part is available in a choice of the following 9 reset

threshold options: 1.58V, 1.67V, 2.19V, 2.32V, 2.63V, 2.93V,

3.08V, 4.38V and 4.63V. There are four reset timeout options-

1ms, 20ms, 140ms and 1120ms. There are also four possible

watchdog timeouts available- 6.3ms, 102ms, 1.6s and 25s. The

parts differ in terms of reset output configuration, as indicated

in table 1.

The ADM8616/ADM8617/ADM8618 are supervisory circuits

which monitor power supply voltage levels and code execution

integrity in microprocessor-based systems. A power-on-reset

signal is generated when the supply voltage rises to a preset

threshold level.The ADM8616–ADM8618 have an on-chip

watchdog timer which can reset the microprocessor if it fails to

strobe within a preset timeout period.

The ADM8616/ADM8617/ADM8618 are available in 4-lead

SC70 packages and typically consume only 3µA, making them

suitable for use in low power portable applications.

Table 1. Selection Table

Output Stage

Part No.

Watchdog

RESET

ADM8616

ADM8617

ADM8618

Yes

Push-Pull

Open-Drain

Push-Pull

Rev. PrC

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

registered trademarks are the property of their respective companies.

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

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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