ZSM530GTA datasheet, PDF - EEWORLD Datasheet

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ZSM530GTA: DescriptionPower Supply Support Circuit, Fixed, 1 Channel, PDSO4, SOT-223, 4 PIN; CategoryPower/power management The power supply circuit; File Size139KB，5 Pages; ManufacturerZetex Semiconductors; Websitehttp://www.zetex.com/; Environmental Compliance

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ZSM530GTA Overview

Power Supply Support Circuit, Fixed, 1 Channel, PDSO4, SOT-223, 4 PIN

ZSM530GTA Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	Zetex Semiconductors
package instruction	SOT-223, 4 PIN
Reach Compliance Code	not_compliant
ECCN code	EAR99
Adjustable threshold	NO
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	R-PDSO-G4
JESD-609 code	e3
length	6.5 mm
Humidity sensitivity level	1
Number of channels	1
Number of functions	1
Number of terminals	4
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
Peak Reflow Temperature (Celsius)	260
Certification status	Not Qualified
Maximum seat height	1.8 mm
Maximum supply voltage (Vsup)	6.5 V
Minimum supply voltage (Vsup)	1 V
Nominal supply voltage (Vsup)	5 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	10
width	3.5 mm

ZSM530GTA Preview

SUPPLY VOLTAGE

MONITOR

ISSUE 1 – NOVEMBER 1995

DEVICE DESCRIPTION

The ZSM530 is a three terminal under

v o l t a g e mo ni t or ci r cui t f or us e i n

microprocessor systems. The threshold

voltage of the device has been set to 4.3 volts

making it ideal for 5 volt circuits.

Included in the device is a precise voltage

reference and a comparator with built in

hysteresis to prevent erratic operation. The

ZSM530 features an open collector output

capable of sinking at least l0mA which only

requires a single external resistor to interface

to following circuits.

Operation of the device is guaranteed from

one volt upwards, from this level to the

device threshold voltage the output is held

low providing a power on reset function.

Should the supply voltage, once established,

at any time drop below the threshold level

then the output again will pull low.

The device is available in a TO92 package for

through hole applications as well as SO8 and

SOT223 for surface mount requirements.

ZSM530

FEATURES

•

SO8, SOT223 and TO92 packages

Power on reset generator

Automatic reset generation

Low standby current

Guaranteed operation from 1 volt

Wide supply voltage range

Internal clamp diode to discharge

delay capacitor

4.3 volt threshold for 5 volt logic

20mV hysteresis prevents erratic operation

APPLICATIONS

Microprocessor systems

Computers

Computer peripherals

Instrumentation

Automotive

Battery powered equipment

SCHEMATIC DIAGRAM

4-354

ZSM530

ABSOLUTE MAXIMUM RATING

Input Supply Voltage

Offstate Output Voltage

Onstate Output

Sink Current(

Note 1

)

Clamp Diode

Forward Current(

Note 1

)

Operating Junction

Temperature

Operating Temperature

Storage Temperature

-1 to 10V

10V

Internally limited

100mA

150°C

-40 to 85°C

-55 to 150°C

Power Dissipation

TO92

SOT223

SO8

780mW

2W(

Note 2

)

780mW(

Note 2

)

TEST CONDITIONS

amb

=25°C for typical values, T

amb

=-40 to 85°C for min/max values (Note3))

COMPARATOR

PARAMETER

Threshold Voltage

High state output (V

increasing)

Threshold Voltage

Low state output (V

decreasing)

Hysteresis

SYMBOL

4.2

0.01

MIN

TYP.

MAX.

UNITS

4.31

4.29

0.02

4.4

0.05

OUPUT

Output sink saturation:

=3.8V, I

sink

=8.0mA)

=3.8V, I

sink

=2.0mA)

=1.0V, I

sink

=0.1mA)

Onstate output sink current

, Output=3.8V)

Offstate output leakage current

, Output=5V)

Clamp diode forward voltage

=10mA)

Propagation delay

5V to 3.8V, R

=10k, T

amb

=25°C)

sink

0.6

0.02

1.2

0.46

0.15

1.0

0.4

0.25

0.5

1.5

µA

µs

TOTAL DEVICE

Operating input voltage range

Quiescent input current (V

=5V)

1.0 to 6.5

175

260

µA

Note:

1. Maximum package power dissipation must be observed.

2. Maximum power dissipation, for the SOT223 and SO8 packages, is calculated assuming

that the device is mounted on a PCB measuring 2 inches square.

3. Low duty cycle pulse techniques are used during test to maintain junction temperatures as

close to ambient as possible.

4-355

ZSM530

TYPICAL CHARACTERISTICS

500

=10K

=25 °C

400

Input Current (µA)

300

-40 °C 25 °C

85 °C

Output Voltage (V)

200

100

Input Voltage

(V)

Input Voltage

(V)

Input Current vs. Input Voltage

=4V

Output Voltage vs. Input Voltage

=10K

Vin (V)

Sink Current (mA)

-40 °C

25 °C

85 °C

Vout (V)

0.4

0.8

1.2

1.6

2.0

Output Saturation Voltage (V)

Time (µs)

Output Saturation Voltage vs. Sink Current

100

=0V

4.40

Reset Delay Time

4.35

Forward Current (mA)

85 °C

25 °C

-40 °C

Threshold Voltage (V)

Upper Threshold

4.30

Lower Threshold

4.25

0.4

0.8

1.2

1.6

2.0

4.20

-40

-20

100

Forward Voltage (V)

Temperature (°C)

Clamp Diode Forward Current vs. Voltage

Threshold Voltage vs. Temperature

4-356

ZSM530

TIMING DIAGRAM

Vcc

Threshold

Voltage

Output

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Output

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Output

Undefined

APPLICATION CIRCUIT

Note 4: A time delayed reset can be accomplished with the additional Cd.





RCd



(

mpu

)









−







=Time (Seconds)

=Microprocessor Reset Threshold

=Power Supply Voltage

4-357

ZSM530

CONNECTION DIAGRAMS

SO8

Package Suffix – N8

SOT223

Package Suffix – G

Top View

Top View –

Pin 4 floating or connected to pin 2

TO92 Package Suffix – C

Bottom View

ORDERING INFORMATION

Part Number

ZSM530N8

ZSM530G

ZSM530C

Package

SO8

SOT223

TO92

Part Mark

ZSM530

4-358

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