TC54VC4502EZBSTP datasheet, PDF

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TC54VC4502EZBSTP: Description1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3; Categoryaccessories; File Size33KB，3 Pages; ManufacturerTelCom Semiconductor, Inc. (Microchip Technology); Websitehttp://www.telcom-semi.com/

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TC54VC4502EZBSTP Overview

1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3

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TC54

VOLTAGE DETECTOR

FEATURES

Precise Detection Thresholds .... Standard

2.0%

Custom

1.0%

Small Packages ........... SOT-23A-3, SOT-89, TO-92

Low Current Drain ..................................... Typ. 1

Wide Detection Range .......................... 2.1V to 6.0V

Wide Operating Voltage Range ............ 1.5V to 10V

GENERAL DESCRIPTION

The TC54 Series are CMOS voltage detectors, suited

especially for battery-powered applications because of their

extremely low 1µA operating current and small surface-

mount packaging. Each part is laser trimmed to the desired

threshold voltage which can be specified from 2.1V to 6.0V,

in 0.1V steps.

The device includes a comparator, low-current high-

precision reference, laser-trimmed divider, hysteresis circuit

and output driver. The TC54 is available with either an open-

drain or complementary output stage.

In operation, the TC54's output (V

OUT

) remains in the

logic HIGH state as long as V

is greater than the

–

specified threshold voltage (V

DET

). When V

falls below

–

, the output is driven to a logic LOW. V

OUT

remains

DET

LOW until V

rises above V

–

DET

by an amount V

HYST

whereupon it resets to a logic HIGH.

APPLICATIONS

Battery Voltage Monitoring

Microprocessor Reset

System Brownout Protection

Switching Circuit in Battery Backup

Level Discriminator

PIN CONFIGURATIONS

*SOT-23A-3

VIN

1 2 3

SOT-89-3

TO-92

ORDERING INFORMATION

PART CODE TC54 V X XX X X X XX XXX

Output form:

N = Nch Open Drain

C = CMOS Output

Detected Voltage:

Ex: 21 = 2.1V; 60 = 6.0V

Extra Feature Code:

Fixed: 0

Tolerance:

1 =

1.0% (custom)

2 =

2.0% (standard)

TC54VC only

TC54

VSS

TC54

VOUT

VIN

VSS

TC54

VOUT

*SOT-23A-3 is equivalent to EIAJ (SC-59)

VIN

VSS

FUNCTIONAL BLOCK DIAGRAM

VIN

Temperature:

E: – 40°C to + 85°C

Package Type and Pin Count:

CB: SOT-23A-3*, MB: SOT-89-3, ZB: TO-92-3

–

VOUT

Taping Direction:

Standard Taping

Reverse Taping

No suffix: TO-92 Bulk

*SOT-23A-3 is equivalent to EIAJ (SC-59).

VREF

VSS

TC54VN has open-drain output.

TC54VC has complementary output.

TC54-10 11/8/96

4-279

TELCOM SEMICONDUCTOR, INC.

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