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FUNCTION/TRUTH TABLES

TPS3307-18, TPS3307-25, TPS3307-33

SLVS199B – DECEMBER 1998 – REVISED OCTOBER 2004

An internal timer delays the return of the RESET output to the inactive state (high) to ensure proper system

(low) again.

The TPS3307-xx family of devices incorporates a manual reset input, MR. A low level at MR causes RESET to

become active. In addition to the active-low RESET output, the TPS3307-xx family includes an active-high

RESET output.

The devices are available in either 8-pin MSOP or standard 8-pin SO packages.

The TPS3307-xx devices are characterized for operation over a temperature range of –40

°C to 85°C.

SUPPLY VOLTAGE MONITORING

NOMINAL SUPERVISED VOLTAGE

THRESHOLD VOLTAGE (TYP)

DEVICE

SENSE1

SENSE2

SENSE3

SENSE1

SENSE2

SENSE3

TPS3307-18

3.3V

1.8V

User defined

2.93V

1.68V

TPS3307-25

3.3V

2.5V

User defined

2.93V

2.25V

TPS3307-33

5V

3.3V

User defined

4.55V

2.93V

(1)

The actual sense voltage has to be adjusted by an external resistor divider according to the application requirements.

AVAILABLE OPTIONS

PACKAGED DEVICES

MARKING

CHIP FORM

PowerPAD™

SMALL OUTLINE

DGN PACKAGE

(Y)

µ-SMALL OUTLINE

(D)

(DGN)

TPS3307-18D

TPS3307-18DGN

TIAAP

TPS3307-18Y

-40

°C to 85°C

TPS3307-25D

TPS3307-25DGN

TIAAQ

TPS3307-25Y

TPS3307-33D

TPS3307-33DGN

TIAAR

TPS3307-33Y

MR

RESET

RESET

L

X

L

H

H

0

0

0

L

H

H

0

0

1

L

H

H

0

1

0

L

H

H

0

1

1

L

H

H

1

0

0

L

H

H

1

0

1

L

H

H

1

1

0

L

H

H

1

1

1

H

L

(1)

X = Don't care

2