PT7M6709 Datasheet, PDF (1/12 Pages) Pericom Semiconductor Corporation – Multi-voltage Supervisor

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PT7M6709/6714
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Multi-voltage Supervisor
Features
Description
 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:
 PT7M6709: 15μA typical
 PT7M6714: 20μA typical
 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
PT7M6709
1 IN1 Vcc 10
2 IN2 PWRGD1 9
3 IN3 PWRGD2 8
4 IN4 PWRGD3 7
5 GND PWRGD4 6
MSOP
PT7M6714
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.
1 MR Vcc 10
2 PFI1 RESET 9
3 PFI2 PFO1 8
4 PFI3 PFO2 7
5 GND PFO3 6
MSOP
Applications
 Tele-communications
 Servers
 High-End Printers
 Desktop and Notebook Computers
 Data Storage Equipment
 Networking Equipment
 Multi-voltage Systems
12-07-0002
PT0235-2
07/05/12
1