PT7M1233A-15TCE datasheet, PDF

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PT7M1233A-15TCE: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, PDSO3, LEAD FREE, TO-261, SOT-223, 4 PIN; CategoryPower/power management The power supply circuit; File Size260KB，8 Pages; ManufacturerPericom Semiconductor Corporation (Diodes Incorporated); Websitehttps://www.diodes.com/; Environmental Compliance

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PT7M1233A-15TCE Overview

Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, LEAD FREE, TO-261, SOT-223, 4 PIN

PT7M1233A-15TCE Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Pericom Semiconductor Corporation (Diodes Incorporated)
Parts packaging code	TO-261
package instruction	SOP, SOT-223
Contacts	4
Reach Compliance Code	compliant
ECCN code	EAR99
Other features	RESET THRESHOLD VOLTAGE IS 2.72V
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G3
JESD-609 code	e3
length	6.5 mm
Number of channels	1
Number of functions	1
Number of terminals	3
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Encapsulate equivalent code	SOT-223
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
power supply	1/5.5 V
Certification status	Not Qualified
Maximum seat height	1.8 mm
Maximum supply current (Isup)	0.012 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	1 V
Nominal supply voltage (Vsup)	3.6 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn)
Terminal form	GULL WING
Terminal pitch	2.3 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	40
width	3.5 mm

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PT7M1233/1233A

Supervisory Circuit

Features



High accurate:

1.5%

(25°

Operating voltage range: 1.0V ~ 5.5V

Operating temperature range: -40° to + 85°

Detect voltage temperature characteristics:

2.5%



TYP

Output configuration: Bi-dir

Reset timeout period: typical 200ms

Description

The PT7M1233/1233A series are designed to monitor

power supplies in µ and digital systems. They

provide excellent circuit reliability and low cost by

eliminating external components and adjustments.

The devices perform a single function: assert a reset

signal whenever the V

supply voltage falls below a

preset threshold. Reset remains asserted 200ms after

has risen above the reset threshold.

PT7M1233/1233A are bidirectional output, allowing it

to monitor a pushbutton on the reset output.

Pin Configuration

PT7M1233/1233A

VCC RST GND

TO-92

Pin Description

Name Type

Description

Reset Output and Pushbutton Input:

RST is asserted when V

drops below voltage threshold V

TH-

. Active

low. When other devices pull RST low, the reset condition occurs and will remain a reset timeout period at

least 200ms.

Ground

Supply Voltage.

RST

I/O

GND

VCC

12-07-0002

PT0195-3

0705/12

PT7M1233/1233A

Supervisory Circuit

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Block Diagram

Vcc

Reset

Monitor

VCC Resistor

Divider

Timing

Delay

T.C.

Reference

RST

GND

Function Description

Power Monitor

A microprocessor’s (µP’s) reset input starts the µP in a known state. Whenever the µ is in an unknown state, it should be held in

reset. The supervisory circuits assert reset during power-up and prevent code execution errors during power-down or brownout

conditions.

On power-up, once Vcc reaches about 1.0V, RST is a guaranteed logic low of 0.4V or less. As Vcc rises, RST stays low. When

Vcc rises above the reset threshold V

RST

, an internal timer releases RST after about 200ms. RST asserts whenever Vcc drops

below the reset threshold, i.e. brownout condition. If brownout occurs in the middle of a previously initiated reset pulse, the pulse

continues for at least another 200ms. On power-down, once Vcc falls below the reset threshold, RST stays low and is guaranteed

to be 0.4V or less until Vcc drops below 1V.

Reset Output: Bi-direction

PT7M1233

The devices provide RST output pin for a pushbutton switch. When the devices are not in a reset cycle, it continuously monitors

the RST signal for a low going edge. If an edge is detected, the devices will debounce the switch by pulling the RST line low.

After the internal timer has expired, the devices will continue to monitor the RST line. If the line is still low, they will continue to

monitor the line looking for a rising edge. Upon detecting a release, they will force the RST line low and hold it low for 200ms.

PT7M1233A

When an out-of-tolerance condition is detected, an internal power fail signal is generated which forces reset to the active state.

When V

returns to an in-tolerance condition, the reset signal is kept in the active state for approximately 200ms to allow the

power supply and processor to stabilize. The second function of the PT7M1233A is pushbutton reset control. The PT7M1233A

debounces a pushbutton closure and will generate a 200ms reset pulse upon release.

12-07-0002

PT0195-3

0705/12

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Description	Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, LEAD FREE, TO-261, SOT-223, 4 PIN	Power Supply Support Circuit, Fixed, 1 Channel, LEAD FREE, TO-92, 3 PIN	Power Supply Support Circuit, Fixed, 1 Channel, LEAD FREE, TO-92, 3 PIN	Power Supply Support Circuit,	Power Supply Support Circuit, Fixed, 1 Channel, LEAD FREE, TO-92, 3 PIN	Power Supply Support Circuit,	Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, LEAD FREE, TO-261, SOT-223, 4 PIN	Power Supply Support Circuit	Power Supply Support Circuit, Fixed, 1 Channel, PDSO3, LEAD FREE, TO-261, SOT-223, 4 PIN
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	unknown	compliant	unknown	compliant
ECCN code	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
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
Is it lead-free?	Lead free	Lead free	Lead free	-	Lead free	-	Lead free	-	Lead free
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	-	conform to	-	conform to
Maker	Pericom Semiconductor Corporation (Diodes Incorporated)	-	-	Pericom Semiconductor Corporation (Diodes Incorporated)	Pericom Semiconductor Corporation (Diodes Incorporated)	Pericom Semiconductor Corporation (Diodes Incorporated)	Pericom Semiconductor Corporation (Diodes Incorporated)	Pericom Semiconductor Corporation (Diodes Incorporated)	Pericom Semiconductor Corporation (Diodes Incorporated)
Parts packaging code	TO-261	TO-92	TO-92	-	TO-92	-	TO-261	-	TO-261
Contacts	4	3	3	-	3	-	4	-	4
Other features	RESET THRESHOLD VOLTAGE IS 2.72V	RESET THRESHOLD VOLTAGE IS 4.3V	RESET THRESHOLD VOLTAGE IS 4.6V	-	RESET THRESHOLD VOLTAGE IS 2.88V	-	RESET THRESHOLD VOLTAGE IS 4.6V	-	RESET THRESHOLD VOLTAGE IS 2.88V
Adjustable threshold	NO	NO	NO	-	NO	-	NO	-	NO
JESD-30 code	R-PDSO-G3	O-XBCY-T3	O-XBCY-T3	-	O-XBCY-T3	-	R-PDSO-G3	-	R-PDSO-G3
JESD-609 code	e3	e3	e3	-	e3	-	e3	-	e3
Number of channels	1	1	1	-	1	-	1	-	1
Number of functions	1	1	1	-	1	-	1	-	1
Number of terminals	3	3	3	-	3	-	3	-	3
Maximum operating temperature	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
Package body material	PLASTIC/EPOXY	UNSPECIFIED	UNSPECIFIED	-	UNSPECIFIED	-	PLASTIC/EPOXY	-	PLASTIC/EPOXY
Package shape	RECTANGULAR	ROUND	ROUND	-	ROUND	-	RECTANGULAR	-	RECTANGULAR
Package form	SMALL OUTLINE	CYLINDRICAL	CYLINDRICAL	-	CYLINDRICAL	-	SMALL OUTLINE	-	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260	260	260	-	260	-	260	-	260
Certification status	Not Qualified	Not Qualified	Not Qualified	-	Not Qualified	-	Not Qualified	-	Not Qualified
Maximum supply voltage (Vsup)	5.5 V	5.5 V	5.5 V	-	5.5 V	-	5.5 V	-	5.5 V
Minimum supply voltage (Vsup)	1 V	1 V	1 V	-	1 V	-	1 V	-	1 V
Nominal supply voltage (Vsup)	3.6 V	3.6 V	3.6 V	-	3.6 V	-	3.6 V	-	3.6 V
surface mount	YES	NO	NO	-	NO	-	YES	-	YES
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	-	INDUSTRIAL	-	INDUSTRIAL	-	INDUSTRIAL
Terminal surface	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	-	Matte Tin (Sn)	-	Matte Tin (Sn)	-	Matte Tin (Sn)
Terminal form	GULL WING	THROUGH-HOLE	THROUGH-HOLE	-	THROUGH-HOLE	-	GULL WING	-	GULL WING
Terminal location	DUAL	BOTTOM	BOTTOM	-	BOTTOM	-	DUAL	-	DUAL
Maximum time at peak reflow temperature	40	NOT SPECIFIED	NOT SPECIFIED	-	NOT SPECIFIED	-	40	-	40

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