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PT7M7452WTAE

Description
Power Supply Support Circuit, Adjustable, 1 Channel, +1.67VV, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN
CategoryPower/power management    The power supply circuit   
File Size543KB,11 Pages
ManufacturerPericom Semiconductor Corporation (Diodes Incorporated)
Websitehttps://www.diodes.com/
Environmental Compliance  
Download Datasheet Parametric View All

PT7M7452WTAE Overview

Power Supply Support Circuit, Adjustable, 1 Channel, +1.67VV, PDSO6, LEAD FREE, MO-178AB, SOT-23, 6 PIN

PT7M7452WTAE Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerPericom Semiconductor Corporation (Diodes Incorporated)
Parts packaging codeSOIC
package instructionTSSOP, TSOP6,.11,37
Contacts6
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresRESET THRESHOLD VOLTAGE IS 1.67V
Adjustable thresholdYES
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G6
JESD-609 codee3
length2.95 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals6
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSOP6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
power supply1/5.5 V
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply current (Isup)0.008 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1 V
Nominal supply voltage (Vsup)3.6 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Threshold voltage nominal+1.67V
Maximum time at peak reflow temperature40
width1.6 mm
|
Preliminary Data Sheet
PT7M7443-52
µP
Supervisory Circuit
Description
The PT7M7443~7452 low-current microprocessor reset
circuits feature single or dual manual reset inputs with an
extended 6.72s setup period. Because of the extended
setup period, short switch closures (nuisance resets) are
ignored.
On all devices, the reset output asserts when any of the
monitored supply voltages drops below its specified
threshold. The reset output remains asserted for the reset
timeout period (210ms typ) after all monitored supplies
exceed their reset thresholds. The reset output is one-shot
pulse asserted for the reset timeout period (140ms min)
when selected manual reset input(s) are held low for an
extended setup timeout period of 6.72s. These devices
ignore manual reset transitions of less than 6.72s (typ).
The PT7M7443~7448 are single fixed-voltage µP
supervisors. The PT7M7443/7444 have a single extended
manual reset input. The PT7M7445/7446 have two
extended manual reset inputs. The PT7M7447/7448 have
one extended and one immediate manual reset input.
The PT7M7449~7452 have one fixed-threshold µP
supervisor and one adjustable-threshold µP supervisor.
The PT7m7449/7450 have two delayed manual reset
inputs. The PT7M7451/7452 have one delayed and one
immediate manual reset input.
The PT7M7443~7452 have an active-low /RESET with
push-pull or open-drain output logic options. These
devices, offered in small SOT package, are fully
guaranteed over the extended temperature range (-40℃
to +85℃).
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Features
Single- or Dual-Supply Voltage Monitors
Precision Factory-Set Reset Thresholds from 1.6V to
4.6V
Adjustable Threshold to Monitor Voltages Down to
0.63V (PT7M7449~7452)
Single or Dual Manual Reset Inputs with Extended
6.72s Setup Period
Optional Short Setup Time Manual Reset Input
(PT7M7447/7448/7451/7452)
Immune to Short Voltage Transients
Low 3uA Supply Current
Guaranteed Valid Reset Down to VDD=1.0V
Active-Low
Outputs
/RESET(Push-Pull
or
Open-Drain)
140ms(min) Reset Timeout Period
Small 5 and 6-Pin SOT23 Packages
Ordering Information
Part Number
PT7M7443xTAE
PT7M7444xTAE
PT7M7445xTAE
PT7M7446xTAE
PT7M7447xTAE
PT7M7448xTAE
PT7M7449xTAE
PT7M7450xTAE
PT7M7451xTAE
PT7M7452xTAE
Package
lead-free SOT23-5
lead-free SOT23-5
lead-free SOT23-5
lead-free SOT23-5
lead-free SOT23-5
lead-free SOT23-5
lead-free SOT23-6
Lead-free SOT23-6
lead-free SOT23-6
lead-free SOT23-6
Note:
suffix “x” represents 9 kinds of factory trimmed reset
threshold voltage. Please see below table.
Applications
Monitoring lithiumion (Li
+
) cells or multicell
alkaline/ NiCd/ NiMH power supplies.
Table 1
Suffix “x” definition of PT7M7443~7452
Suffix x
L
M
T
Reset threshold (V)
4.63
4.38
3.08
S
2.93
R
2.63
Z
2.32
Y
2.19
W
1.67
V
1.58
PT0289(07/07)
1
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