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Datasheet> All Categories > Power/power management> The power supply circuit> PT7M7823STAEX
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PT7M7823STAEX

Description
Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN
CategoryPower/power management    The power supply circuit   
File Size1MB，15 Pages
ManufacturerDiodes Incorporated
Environmental Compliance
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PT7M7823STAEX Overview

Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN

PT7M7823STAEX Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerDiodes Incorporated
package instructionLSSOP, TSOP5/6,.11,37
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time53 weeks
Other featuresRESET THRESHOLD IS 2.93V
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G5
length2.9 mm
Number of channels1
Number of functions1
Number of terminals5
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply3.3 V
Certification statusNot Qualified
Maximum seat height1.45 mm
Maximum supply current (Isup)0.036 mA
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)3 V
Nominal supply voltage (Vsup)3.3 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width1.6 mm

PT7M7823STAEX Preview

PT7M7803/7809-7812/7823-7825
μP Supervisor Circuits
Features
Precision supply-voltage monitor
- 4.63V (PT7M78xxL)
- 4.38V (PT7M78xxM)
- 3.08V (PT7M78xxT)
- 2.93V (PT7M78xxS)
- 2.63V (PT7M78xxR)
- 2.32V (PT7M78xxZ)
- 2.20V (PT7M78xxY)
- 4.00V (PT7M78xxJ)
- 2.25V (PT7M78xxK)
- 2.80V (PT7M78xxG)
200ms reset pulse width
Debounced CMOS-compatible manual-reset input
(7811, 7812, 7823, 7825)
Reset Output Signal for Watchdog and Power
Abnormal, Manual Reset
Reset Push-Pull output (PT7M7809,7811,7823,
7824,7825)
Reset Open-Drain output (PT7M7803)
Voltage monitor for power-fail or low battery
warning
Guaranteed RESET/RESET valid at V
CC
=1.0V
Description
The PT7M78xx family microprocessor (P) supervisory
circuits are targeted to improve reliability and accuracy
of power-supply circuitry in
P
systems. These devices
reduce the complexity and number of components
required to monitor power-supply and battery functions.
The main functions are:
1. Asserting reset output during power-up, power-
down and brownout conditions for
P
system.
2. Watchdog functions
3. Manual reset.
Applications
Power-supply circuitry in
P
systems
Networking
Security System
Server/Storage
Embedded System
Function Comparison Table
Part No.
1
2
3
4
5
6
7
8
PT7M7803
PT7M7809
PT7M7810
PT7M7811
PT7M7812
PT7M7823
PT7M7824
PT7M7825
RESET output
Push-Pull
Open-Drain
-
-
-
-
-
-
-
-
-
-
RESET output
(push-pull)
-
-
-
-
Manual Reset
Input
-
-
-
-
Watchdog
Input
-
-
-
-
-
-
All trademarks are property of their respective owners.
2017-04-0010
www.diodes.com
5/10/2017
PT0109-24
1
PT7M7803/7809-7812/7823-7825
Pin Configuration
SOT23-3/SC70-3
PT7M7803
PT7M7809
1
GND
1
SOT143-4
PT7M7810
GND
1
PT7M7811
GND
V CC
4
1
PT7M7812
GND
V CC
4
V CC
3
V CC
3
2
RESET
2
RESET
2
RESET
MR
3
2
RESET
MR
3
SOT23-5
PT7M7811
1
GND
V CC
5
1
PT7M7812
GND
V CC
5
2
NC
2
NC
3
RESET
MR
4
3
RESET
MR
4
PT7M7823
1
RESET
V CC
5
1
PT7M7824
RESET
V CC
5
PT7M7825
1
RESET
V CC
5
2
GND
2
GND
2
GND
3
MR
WDI
4
3
RESET
WDI
4
3
RESET
MR
4
Pin Description
All trademarks are property of their respective owners.
2017-04-0010
www.diodes.com
5/10/2017
PT0109-24
2
PT7M7803/7809-7812/7823-7825
Pin
MR
Type
I
Description
Manual-Reset: (CMOS).
Active low. Pull low to force a reset. Reset remains asserted for the duration of
the Reset Timeout Period after MR transitions from low to high. Leave unconnected or connected to VCC if
not used.
Supply Voltage.
Reset is asserted when V
CC
drops below the Reset Threshold Voltage (V
RST
). Reset
remains asserted until V
CC
rises above V
RST
and keep asserted for the duration of the Reset Timeout Period
(t
RS
) once V
CC
rises above V
RST
.
Ground Reference
for all signals.
Watchdog Input (CMOS).
If WDI remains high or low for the duration of the watchdog timeout period
(t
WD
), the internal watchdog timer trigger a reset output. Floating WDI or connecting WDI to a high-
impedance three-state buffer disables the watchdog feature. The internal watchdog timer clears whenever
reset is asserted or WDI occurs a rising or falling edge.
Active-Low Reset Output (Push-Pull or Open-Drain).
It goes low when Vcc is below the reset threshold.
It remains low for about 200ms after one of the following occurs: Vcc rises above the reset threshold
(VRST), the watchdog triggers a reset, or MR goes from low to high.
The inverse of RESET,
active high. Whenever RESET is high, RESET is low.
No connection.
VCC
Power
GND
-
WDI
I
RESET
RESET
NC
O
O
-
Block Diagram
PT7M7823/24/25 Block Diagram
WDI
(PT7M7823/24)
Watchdog
Transition Detector
VCC
Watchdog Timer
Timebase for Reset
& Watchdog
(PT7M7823/
24/25)
Reset Generator
RESET
RESET
(PT7M7824/
25)
MR
(PT7M7823/25)
VCC
V
RST
All trademarks are property of their respective owners.
2017-04-0010
www.diodes.com
5/10/2017
PT0109-24
3
PT7M7803/7809-7812/7823-7825
PT7M7803/09/10/11/12 Block Diagram
VCC
Timebase for Reset
(PT7M7803/
/09/11)
RESET
RESET
(PT7M7810/
12)
V
RST
MR
(PT7M7811/12)
VCC
Reset Generator
Maximum Ratings
Storage Temperature ............................................................-65
o
C to +150
o
C
Ambient Temperature with Power Applied.......................... -40
o
C to +85
o
C
Supply Voltage to Ground Potential (Vcc to GND) ..............-0.3V to +7.0V
DC Input Voltage (All inputs except Vcc and GND)......-0.3V to V
CC
+0.3V
Open-drain RESET …………………………………….…..-0.3V to +7.0V
DC Output Current (All outputs) ..........................................................20mA
Power Dissipation .......................................... 320mW (Depend on package)
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other condi-
tions above those indicated in the operational sec-
tions of this specification is not implied. Exposure
to absolute maximum rating conditions for extended
periods may affect reliability.
Recommended Operation Conditions
Sym
V
CC
Description
Supply Voltage for 78xxL/M/J
Supply Voltage for 78xxT/S
Supply Voltage for 78xxR/Z/Y/K/G
Input High Voltage (WDI, MR)
Input High Voltage for Open-drain RESET
Input Low Voltage
Operating Temperature
Test Conditions
-
-
-
-
-
-
Min.
4.5
3.0
2.7
0.7V
CC
0
-
-40
Typ.
5.0
3.3
3.0
-
--
-
-
Max.
5.5
5.5
5.5
V
CC
5.5
0.3V
CC
85
Unit
V
V
V
V
V
V
º
C
V
IH
V
IL
T
A
All trademarks are property of their respective owners.
2017-04-0010
www.diodes.com
5/10/2017
PT0109-24
4
PT7M7803/7809-7812/7823-7825
DC Electrical Characteristics
(V
CC
= V
RN
+ 5% to 5.5V, T
A
= -40~85º unless otherwise noted.)(Note 1)
C,
Symbol
V
CC
I
CC
V
IH
V
IL
V
RST
Description
Operating Voltage Range
Supply Current
Input High Voltage
Input Low Voltage
Threshold Voltage(Falling-
edge)(Note
2)
Test Conditions
-
Vcc = 5V, No
load
Pin: MR, WDI
Pin: MR, WDI
T
A
= 25º
C
T
A
= -40 ~ 85º
C
Vcc varies
between
V
RN
±5%
78xx
7823/24/25L/M
7823/24/25
T/S/R/K/Z/Y
Others
7803/09/10/11/12
7823/24/25
Min.
1.0
-
-
0.7V
CC
-
V
RN
- 1.5%
V
RN
- 2.5%
-
-
-
Vcc-1.5
0.8×
Vcc
0.8×
Vcc
0.8×
Vcc
Vcc-1.5
0.8×
Vcc
-
-
-
-
-
-20
-
-
10
35
Typ.
-
10
13
-
-
V
RN
V
RN
12
4
50
-
-
-
-
-
-
-
-
-
-
120
-15
-
-
20
52
Max.
5.5
30
36
V
CC
0.3V
CC
V
RN
+ 1.5%
V
RN
+ 2.5%
-
-
-
-
-
-
-
-
-
0.4
0.3
0.3
1
160
-
800
µA
400
40
75
k
µA
µA
V
V
V
V
mV
V
Unit
V
µA
V
V
V
RTH
Reset Threshold Hysteresis
(Note
2)
Vcc
4.5V Isource=800µ
A
Output High
Voltage(Except
7823/24/25)
V
OH
Output High
Voltage(7823/24/25)
Vcc
2.7V Isource=500µ
A
Vcc
1.8V Isource=150µ
A
Vcc
1.0V Isource=4µ
A
7823/24/25L/M, Vcc=V
RST
Isource=120µ
A
7823/24/25T/S/R/K, Vcc=V
RST
Isource=30µA
Vcc
4.5V Isink=3.2mA
Vcc
2.7V Isink=1.2mA
Vcc
1.0V Isink=100µ
A
I
LKG
Open-Drain Output
Leakage Current
Average WDI Input
Current (Note
3)
RESET Output Short-
Circuit Current (only for
PT7M7823/24/25)
MR pull-up resistor
(internal)
V
CC
> V
TH(MAX)
for 7803
WDI connected to V
CC
: 5.5V
WDI connected to GND
PT7M782xL/M, RESET=0V,
Vcc=5.5V
PT7M782xT/S/R/K/Z/Y, RESET=0V,
Vcc=3.6V
PT7M7811/7812
PT7M7823/7824/7825
V
OL
Output Low Voltage
I
WDI
I
source
r
Note:
1. Parameters of room temperature guaranteed by production test and parameters of full-temperature guaranteed by design.
2. Valid for both RESET and RESET. V
RST
(V
RTH
-) is the Reset threshold voltage when V
CC
from high to low level, and V
RTH
+ is the Reset threshold
voltage when V
CC
from low to high level. V
RN
is nominal reset threshold voltage.
3. WDI is internally serviced within the watchdog period if WDI is left unconnected.
All trademarks are property of their respective owners.
2017-04-0010
www.diodes.com
5/10/2017
PT0109-24
5
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Description Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN Power Supply Support Circuit, Fixed, 1 Channel, +2.93VV, PDSO4, SOT-143, 4 PIN Power Supply Support Circuit, Fixed, 1 Channel, +2.63VV, PDSO4, SOT-143, 4 PIN Power Supply Support Circuit, Fixed, 1 Channel, +2.93VV, PDSO3, SOT-23, 3 PIN Power Supply Support Circuit, Fixed, 1 Channel, +2.93VV, PDSO3, SOT-23, 3 PIN Power Supply Support Circuit, Fixed, 1 Channel, +2.32VV, PDSO3, SOT-23, 3 PIN Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN Power Supply Support Circuit, Fixed, 1 Channel, PDSO5, SOT-23, 5 PIN
Is it Rohs certified? conform to conform to conform to conform to conform to conform to conform to conform to conform to
package instruction LSSOP, TSOP5/6,.11,37 LSOP, TO-253 LSOP, TO-253 SOP, TO-236 SOP, TO-236 SOP, TO-236 LSSOP, TSOP5/6,.11,37 LSSOP, TSOP5/6,.11,37 LSSOP, TSOP5/6,.11,37
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Factory Lead Time 53 weeks 20 weeks 25 weeks 54 weeks 53 weeks 53 weeks 25 weeks 25 weeks 25 weeks
Other features RESET THRESHOLD IS 2.93V RESET THRESHOLD IS 2.93V RESET THRESHOLD IS 2.63V RESET THRESHOLD IS 2.93V RESET THRESHOLD IS 2.93V RESET THRESHOLD IS 2.32V RESET THRESHOLD IS 2.93V RESET THRESHOLD IS 4.63V RESET THRESHOLD IS 4.63V
Adjustable threshold NO NO NO NO NO NO NO NO NO
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code R-PDSO-G5 R-PDSO-G4 R-PDSO-G4 R-PDSO-G3 R-PDSO-G3 R-PDSO-G3 R-PDSO-G5 R-PDSO-G5 R-PDSO-G5
length 2.9 mm 2.92 mm 2.92 mm 2.92 mm 2.92 mm 2.92 mm 2.9 mm 2.9 mm 2.9 mm
Number of channels 1 1 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1 1 1
Number of terminals 5 4 4 3 3 3 5 5 5
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code LSSOP LSOP LSOP SOP SOP SOP LSSOP LSSOP LSSOP
Encapsulate equivalent code TSOP5/6,.11,37 TO-253 TO-253 TO-236 TO-236 TO-236 TSOP5/6,.11,37 TSOP5/6,.11,37 TSOP5/6,.11,37
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE SMALL OUTLINE, LOW PROFILE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED 260 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
power supply 3.3 V 3.3 V 3 V 3.3 V 3.3 V 3 V 3.3 V 5 V 5 V
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.45 mm 1.22 mm 1.22 mm 1.17 mm 1.17 mm 1.17 mm 1.45 mm 1.45 mm 1.45 mm
Maximum supply current (Isup) 0.036 mA 0.03 mA 0.03 mA 0.03 mA 0.03 mA 0.03 mA 0.036 mA 0.036 mA 0.036 mA
Maximum supply voltage (Vsup) 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage (Vsup) 3 V 3 V 2.7 V 3 V 3 V 2.7 V 3 V 4.5 V 4.5 V
Nominal supply voltage (Vsup) 3.3 V 3.3 V 3 V 3.3 V 3.3 V 3 V 3.3 V 5 V 5 V
surface mount YES YES YES YES YES YES YES YES YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED 30 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 1.6 mm 1.3 mm 1.3 mm 1.3 mm 1.3 mm 1.3 mm 1.6 mm 1.6 mm 1.6 mm
Maker Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated -
Terminal pitch 0.95 mm - - 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm 0.95 mm
Threshold voltage nominal - +2.93V +2.63V +2.93V +2.93V +2.32V - - -

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