TPS3779BDBVR datasheet(3/28 Pages) TI1

No de pièce	TPS3779BDBVR

Description	Dual-Channel, Low-Power, High-Accuracy Voltage Detectors

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Fabricant	TI1 [Texas Instruments]

Site Internet	http://www.ti.com

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SENSE1

GND

SENSE2

VDD

OUT1

OUT2

1

2

3

6

5

4

SENSE1

GND

SENSE2

VDD

OUT1

OUT2

1

2

3

6

5

4

TPS3779, TPS3780

www.ti.com

SBVS250 – APRIL 2015

5 Device Comparison Table

PRODUCT

HYSTERESIS (%)

OUTPUT

TPS3779A

0.5

Push-pull

TPS3779B

5

Push-pull

TPS3779C

10

Push-pull

TPS3779D

1

Push-pull

TPS3780A

0.5

Open-drain

TPS3780B

5

Open-drain

TPS3780C

10

Open-drain

TPS3780D

1

Open-drain

6 Pin Configuration and Functions

DRY Package

DBV Package

1.45-mm × 1-mm µSON

SOT23-6

(Top View)

Pin Functions

NO.

I/O

DESCRIPTION

NAME

DRY

DBV

GND

2

5

—

Ground

OUT1 is the output for SENSE1. OUT1 is asserted (driven low) when the

voltage at SENSE1 falls below VIT–. OUT1 is deasserted (goes high) after

SENSE1 rises higher than VIT+. OUT1 is a push-pull output for the TPS3779

OUT1

5

2

O

and an open-drain output for the TPS3780. The open-drain device

(TPS3780) can be pulled up to 6.5 V independent of VDD; a pull-up resistor

is required for this device.

OUT2 is the output for SENSE2. OUT2 is asserted (driven low) when the

voltage at SENSE2 falls below VIT–. OUT2 is deasserted (goes high) after

SENSE2 rises higher than VIT+. OUT2 is a push-pull output for the TPS3779

OUT2

4

3

O

and an open-drain output for the TPS3780. The open-drain device

(TPS3780) can be pulled up to 6.5 V independent of VDD; a pull-up resistor

is required for this device.

This pin is connected to the voltage to be monitored with the use of an

SENSE1

1

6

I

external resistor divider. When the voltage at this pin drops below the

threshold voltage (VIT–), OUT1 is asserted.

This pin is connected to the voltage to be monitored with the use of an

SENSE2

3

4

I

external resistor divider. When the voltage at this pin drops below the

threshold voltage (VIT–), OUT2 is asserted.

Supply voltage input. Connect a 1.5-V to 6.5-V supply to VDD in order to

VDD

6

1

I

power the device. Good analog design practice is to place a 0.1-µF ceramic

capacitor close to this pin (required for VDD < 1.5 V).

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Product Folder Links: TPS3779 TPS3780

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