TL7705ACD1013TRA

更新时间： 2024-01-15 03:13:16

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		监控
页数	文件大小	规格书
7页	417K
描述
SUPPLY VOLTAGE SUPERVISORS

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数据手册

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TL7705ACD1013TRA 数据手册

TL7700A Series

SUPPLY VOLTAGE SUPERVISORS

POWER-ON RESET GENERATOR

AUTOMATIC RESET GENERATION AFTER

VOLTAGE DROP

WIDE SUPPLY VOLTAGE RANGE ... 3V TO

18V

PRECISION VOLTAGE SENSOR

TEMPERATURE-COMPENSATED VOLTAGE

REFERENCE

TRUE AND COMPLEMENT RESET OUTPUTS

EXTERNALLY ADJUSTABLE PULSE WIDTH

Minidip

DESCRIPTION

The TL7700A series are monolithic supply voltage

supervisorIC’sspecificallydesigned foruseasreset

controllers in microcomputer and microprocessor

systems. During power-up the device tests the sup-

ply voltage and keeps the RESET and RESET out-

puts active (high and low, respectively) as long as

the supply voltage has not reached its nominal volt-

age value. Taking RESIN low has the same effect.

To ensure that the microcomputer system has reset,

the TL7700A then initiates an internal time count

that delays the return of the reset outputs to their in-

active states. Since the time delay for most micro-

computers and microprocessors is in the order of

several machine cycles, the device internal time de-

lay is determined by an external capacitor con-

nected to the C_Tinput (pin 3).

SO8

ORDERING NUMBERS

Temperature Range

0 to 70^oC

Minidip

TL77XXACP

TL77XXAIP

S08

TL77XXACD

TL77XXAID

-25 to 85^oC

t_{po = 1.3 x 10}⁴x C_T

(top view)

PIN CONNECTION

Where : C_Tis in farads (F) and t_poin seconds (s). In

addition, when the supply voltage drops below the

nominal value, the outputs will be active until the

supply voltage returns to the nominal value. An ex-

ternal capacitor (typically 0.1µF) mustbeconnected

to the REF output (pin 1) to reduce the influence of

fast transients in the supply voltage.

The TL7700AI series is characterized for operation

from – 25^oC to 85^oC ; the TL7700AC series is char-

acterized from 0^oC to 70^oC.

1/7

July 2000

12 3 4 5 6 7

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