SENSE

VDD

SET

GND

Nominal Monitored Rail

Up to 5 V

TPS3702

Up to

6.5 V

UV

OV

NMI

RST

Up to

18 V

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

±40 ±25 ±10

5

20

35

50

65

80

95

110 125 140

Temperature ( C)

°

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Avg

Undervoltage Accuracy vs Temperature

-0.5

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

±40 ±25 ±10

5

20

35

50

65

80

95

110 125 140

Temperature ( C)

°

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Avg

C001

Overvoltage Accuracy vs Temperature

Product

Folder

Sample &

Buy

Technical

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Software

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TPS3702

SBVS251 – JANUARY 2015

TPS3702 High-Accuracy, Overvoltage and Undervoltage Monitor

1 Features

3 Description

The TPS3702 is an integrated overvoltage and

1

•

Input Voltage Range: 2 V to 18 V

undervoltage window detector in a small SOT-6

•

High Threshold Accuracy:

package. This highly accuracy voltage monitor is

–

0.25% (typ)

ideal for systems that operate on low-voltage supply

rails and have narrow margin supply tolerances. Low

–

0.9% (–40°C to 125°C)

threshold hysteresis options of 0.55% and 1.0%

•

Fixed Window Thresholds Optimized for Nominal

prevent false reset signals when the monitored

Rails Between 1 V and 5 V

voltage supply is in its normal range of operation.

•

Open-Drain Outputs for Overvoltage and

Internal glitch immunity and noise filters further

Undervoltage Indication

eliminate

false

resets

resulting

from

erroneous

signals.

•

Internal Glitch Immunity

•

Threshold Adjust Using the SET Pin

The TPS3702 does not require any external resistors

for

setting

overvoltage

and

undervoltage

reset

•

Low Quiescent Current: 7 µA (typ)

thresholds, which further increases overall accuracy

•

Internal Threshold Hysteresis: 0.55%, 1.0%

and reduces solution size and cost. The SET pin is

•

SOT-6 Package

used to select between the two available threshold

voltages designed into each device. A separate

SENSE input pin and VDD pin allow for the

2 Applications

redundancy

sought

by

safety-critical

and

high-

•

FPGA and ASIC Applications

reliability

systems.

This

device

also

features

•

DSP-Based Systems

independent reset outputs for the OV and UV pins; as

a result of the open-drain configuration, UV and OV

•

Industrial Control Systems

can be tied together.

•

Factory Automation

This device has a low typical quiescent current

•

Personal Electronics

specification of 7 µA and is qualified for use over the

•

Building Automation

industrial temperature range of –40°C to 125°C.

•

Motor Drives

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

TPS3702

SOT (6)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Typical Application Circuit

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.