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Multi-voltage Supervisor

12-07-0002

PT0235-2

07/05/12

1

PT7M6709/6714

Features

 Monitor 4 Power-Supply Voltages

 Factory-trimmed or User-Adjustable Threshold

Options:



Factory-trimmed Thresholds for 5.0V, 3.3V, 3.0V,

2.5V and 1.8V supplies



User-adjustable Threshold monitors down to

0.62V

 Low Current:





 4 Independent, Active Low, and Open-Drain outputs

with 10μA internal Pull-up to Vcc

 140ms Minimum Reset Timeout Period (PT7M6714

only)

 Immune to Battery Voltage Transients

 2.0V to 5.5V Supply Voltage Range

 -40°C to + 85°C Operating Temperature Range

 Small MSOP-10 Package

Pin Configuration

2

1

3

4

5

IN1

10

9

8

7

6

IN2

IN3

IN4

GND

Vcc

PWRGD1

PWRGD2

PWRGD3

PWRGD4

PT7M6709

MSOP

2

1

3

4

5

MR

10

9

8

7

6

PFI1

PFI2

PFI3

GND

Vcc

RESET

PFO1

PFO2

PFO3

PT7M6714

MSOP

Description

The PT7M6709/6714 quad voltage monitors provide

accurate monitoring of up to four supplies without any

external components. A variety of factory-trimmed

threshold voltages and supply tolerance are available to

optimize the PT7M6709/6714 for specific applications.

The selection includes input options for monitoring 5.0V,

3.3V, 3.0V, 2.5V and 1.8V voltages. Additional high-

input impedance comparator options can be used as

adjustable voltage monitors, general-purpose compare-

ators, or digital-level translators.

The PT7M6709 provides four independent open-drain

outputs with 10μA internal pull-up to Vcc. The

PT7M6714 provides an active-low, open-drain RESET

output with integrated reset timing and three power-fail

comparator outputs.

Each of the monitored voltages is available with trip

thresholds to support power-supply tolerances of either

5% or 10% below the nominal voltage. An internal

bandgap reference ensures accurate trip thresholds

across the operating temperature range.

The PT7M6709 consumes only 15μA (typical) of supply

current. The PT7M6714 consumes only 20μA (typical)

of supply current. The PT7M6709/6714 operates with

supply voltages of 2.0V to 5.5V.

An internal under-

voltage lockout circuit forces all four digital outputs low

when Vcc drops below the minimum operating voltage.

The four digital outputs have weak internal pull-ups to

Vcc, accommodating wire-ORed connections. Each

input threshold voltage has an independent output. The

PT7M6709/6714 are available in MSOP-10 packages

and operate over the extended (-40°C to + 85°C)

temperature range.

Applications

 Tele-communications

 Servers

 High-End Printers

 Desktop and Notebook Computers

 Data Storage Equipment

 Networking Equipment

 Multi-voltage Systems