Panasonic AN1431T, AN1431M Datasheet

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Panasonic AN1431T, AN1431M Datasheet

AN1431T, AN1431M

Surface-mount Adjustable Output Shunt Regulator

Overview

The AN1431T and AN1431M are high accuracy stabilized power supplies in which the output voltage can be adjusted in the range from approx. 2.5 to 36V by using the external resistor under the operating temperature. Because of its fast rise characteristics, it can be replaced with Zener diode and has the wide application range.

Features

High precision reference voltage : 2.5V±2%

High-temperature stability : 17ppm/˚C typ.

Output voltage externally adjustable : 2.5 to 36V

Fast rise

Low input impedance : 0.2Ω (typ.)

Low output noise voltage

Pin Name

áAN1431Tñ

 

 

Pin No.

Pin name

 

 

 

 

1

Cathode

 

 

 

 

2

Reference pin

 

 

 

 

3

Anode

 

 

 

 

áAN1431Mñ

 

 

 

 

 

 

Pin No.

Pin name

 

 

 

1

Reference pin

 

 

 

2

Anode

 

 

 

3

Cathode

 

 

 

 

Block Diagram

AN1431T

 

 

 

 

Unit : mm

5.0±0.2

4.0±0.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.1±0.2

 

 

 

 

 

 

 

 

 

 

13.5±0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ 0.2

0.45– 0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.54

 

 

 

 

 

2.3±0.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

3

1

 

 

 

 

 

 

 

 

 

 

 

JEDEC : TO-92

(SSIP003-P-0000)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AN1431M

 

 

 

 

 

 

 

 

 

 

 

 

Unit : mm

5.0±0.2

 

 

4.0±0.2

 

 

 

 

 

 

 

 

 

 

 

5.1±0.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13.5±0.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+ 0.2

 

 

0.45 – 0.1

2.54

2.3±0.2

2

3

1

JEDEC : TO-92 (SSIP003-P-0000)

 

 

Current

 

 

 

 

 

 

Source

 

 

 

 

Output Tr

+

 

 

 

 

 

 

Error

 

 

 

 

 

 

Amp.

 

 

 

 

 

 

Voltage

 

 

 

 

Reference

3

1

IK 2

3

1

2

IREF

V1

 

 

R1

 

 

VKA

 

 

 

 

R2

VREF

 

 

 

 

 

 

 

 

 

 

 

VKA = VREF (1 + R1 ) + IREF · R1

R2

R2 = 2.5kΩ

Pin number in

is for the AN1431T.

Pin number in

is for the AN1431M.

Absolute Maximum Ratings (Ta=25˚C)

Parameter

Symbol

Rating

Unit

Supply voltage

 

VCC

37

V

 

 

 

 

 

Supply current

 

ICC

–100 to+150

mA

 

 

 

 

 

Power dissipation

 

PD

650 *

mW

 

 

 

 

 

Reference input current

 

IREF

– 0.05 to+10

mA

 

 

 

 

 

Operating ambient

AN1431T

Vopr

–20 to+85

˚C

temperature

AN1431M

–25 to+80

 

 

Storage temperature

AN1431T

Tstg

–55 to+150

˚C

 

 

AN1431M

–55 to+125

 

 

 

* For the AN1431M, SM to the printed board (glass epoxy of 20 ´ 20 ´ 1.7mm with copper film of 1cm2)

Recommended Operating Range (Ta=25˚C)

Parameter

Symbol

Range

 

 

 

Operating supply voltage range

VKA

VREF (2.5 to 36V)

Electrical Characteristics (Ta=25˚C)

Parameter

Symbol

Condition

min

typ

max

Unit

 

 

 

 

 

 

 

 

 

Reference voltage

VREF

VKA=VREF, IK=10mA

2.45

2.50

2.55

V

 

 

 

 

 

 

 

 

 

Reference voltage temperature deviation

VREF (Jev) *1 *2

VKA=VREF, IK=10mA,

 

 

 

3

17

mV

Ta=0 to+70˚C

 

 

 

 

 

 

 

 

 

 

 

Reference voltage fluctuation

DVREF

IK=10mA, DVKA=10V to VREF

 

 

 

–1.2

–2.7

mV/V

 

 

 

DVKA

IK=10mA, DVKA=36 to 10V

 

 

 

–1

–2

mV/V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reference input current

IREF

IK=10mA, R1=10kΩ , R2= ¥

 

 

 

2

4

µA

 

 

 

 

 

 

 

 

 

 

 

 

Reference input current temperature deviation

IREF (Jev) *2

IK=10mA, R1=10kΩ , R2= ¥,

 

 

 

0.4

1.2

µA

 

 

 

 

 

Ta=0 to+70˚C

 

 

 

 

 

 

Minimum cathode current

Imin

VKA=VREF

 

 

 

0.4

1.0

mA

 

 

 

 

 

 

 

 

 

 

 

 

Off-state cathode current

IOFF

VKA=36V, VREF=0V

 

 

 

0.1

1.0

µA

 

 

 

 

 

 

 

 

 

 

 

 

Dynamic impedance

|ZKA| *3

VKA=VREF, IK=1 to 100mA,

 

 

 

0.2

0.5

Ω

<

 

 

 

 

 

f = 1kHz

 

 

 

 

 

 

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