Datasheet > DS1836C-20

DS1836C-20

更新时间： 2024-09-25 23:48:47

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
9页	121K
描述
Voltage Detector

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中文翻译

获取价格

数据手册

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DS1836C-20 数据手册

DS1836/A/B/C/D

3.3V/5V MicroManager

www.dalsemi.com

FEATURES

PIN ASSIGNMENT

ꢀ 5V or 3.3V power-on reset

RST(*RST)

V_CC

V_BAT

ꢀ True 3V operation power switch

ꢀ Switches to battery at 3.8V (2.6V for 3.3V

versions)

ꢀ Excellent for systems designed to operate

with dual power supplies

ꢀ Asserts resets during power transients

ꢀ Maintains reset for 350 ms after V_CCreturns

to an in-tolerance condition

ꢀ Reduces need for discrete components

ꢀ Precision temperature-compensated voltage

reference and voltage sensor

ꢀ 8-pin DIP or space saving 8-pin SOIC surface

mount available

ꢀ CMOS reset output for low current operation

ꢀ Operating temperature of -40°C to +85°C

ꢀ Perfect for PIC microprocessor applications

NMI

GND

V_OUT

8-Pin DIP (300-mil)

RST(*RST)

V_CC

V_BAT

NMI

GND

V_OUT

8-Pin SOIC (150-mil)

DS1836A/C (*DS1836B/D)

PIN DESCRIPTION

V_CC

V_BAT

- Power Supply Input

- Battery Supply Input

- No Connect

V_OUT

GND

- Power Supply Output

- Ground

- Sense Input

NMI

- Non-maskable Interrupt

- Reset Output

RST (*RST)

DESCRIPTION

The DS1836 MicroManager performs three vital system functions. First a precision temperature-

compensated reference and comparator circuit monitor the status of the voltage on V_CCand when an out-

of-tolerance condition is detected, an internal power-fail signal is generated which forces the reset active.

If V_CCcontinues to degrade it switches to the battery supply when V_CCdrops below 3.8 volts (2.6 volts

for 3.3-volt versions). When V_CCexceeds 3.9 volts (2.8 volts for 3.3-volt versions); V_OUTwill again be

supplied from V_CC. Reset will remain active for 350 ms after V_CCreturns to an in-tolerance condition.

Lastly, the DS1836 supports a sense input that sends a non-maskable interrupt whenever the sense input

drops below 1.25 volts.

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中文翻译

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