A431K3R-A [AITSEMI]

SHUNT REGULATOR ADJUSTABLE PRECISION;


型号：	A431K3R-A
厂家：	AiT Semiconductor
描述：	SHUNT REGULATOR ADJUSTABLE PRECISION
文件：	总9页 (文件大小：583K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

DESCRIPTION

FEATURES

The A431 is available in SOT-23, SOT89-3 and

TO-92 packages.



Programmable output Voltage to 36V

Low dynamic output impedance

Sink current capability of 1 to 100mA

Low output noise voltage

Fast turn on response

Available in SOT-23, SOT89-3 and TO-92

packages.

ORDERING INFORMATION

TYPICAL APPLICATION

Package Type

SOT-23

Part Number

A431E3R-A

A431E3VR-A

A431K3R-A

A431K3VR-A

A431ZA-A

SPQ: 3,000pcs/Reel

SOT89-3

SPQ: 1,000pcs/Reel

TO-92

A431ZVA-A

A431ZB-B

A:SPQ: 2,000pcs/Box

B:SPQ: 1,000pcs/Bag

A431ZVB-B

V: Halogen free Package

R: Tape & Reel

A: Ammo Pack

B: Bulk

V_KA=V_REFx (1+R₁/R₂)+I_REFx R₁

Note

Output Voltage Tolerance:

-A: 0.5%

-B: 1%

AiT provides all RoHS products

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 1 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

PIN DESCRIPTION

Top View

Symbol

Pin #

Function

SOT-23

SOT-89

TO-92

REFERENCE

CATHODE

ANODE

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 2 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

ABSOLUTE MAXIMUM RATINGS

T_A= 25℃, unless otherwise noted.

SOT-23, SOT89-3

TO-92

37V

36V

V_KA, Cathode Voltage

I_KA, Cathode Current Range (Continuous)

I_REF, Reference Input Current Range

-100mA~+150mA

-0.05mA~+10m

SOT-23

SOT89-3

TO-92

350mW

P_D, Power Dissipation

500mW

770mW

SOT89-3

TO-92

250℃/W

R_θJA, Thermal Resistance from Junction to Ambient

162℃/W

T_OPR, Operating Temperature Range

T_J, Junction Temperature

-25℃~+85℃

150℃

T_STG, Storage Temperature Range

-65℃~ +150℃

Stress beyond above listed “Absolute Maximum Ratings” may lead permanent damage to the device. These are stress ratings only and

operations of the device at these or any other conditions beyond those indicated in the operational sections of the specifications are not

implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

Parameter

Cathode Voltage

Cathode Current

Symbol

V_KA

Conditions

Min

V_REF

Typ.

Max

Unit

I_KA

100

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 3 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

ELECTRICAL CHARACTERISTICS

T_A=25℃

Parameter

Symbol

V_REF

Conditions

Min

Typ.

2.50

Max

2.513

2.525

Unit

0.5% 2.487

V_KA=V_REF

Reference Input Voltage

I_KA=10mA

2.475

Deviation of Reference Input

Voltage Over Temperature

ΔV_REF

V_KA=V_REF, I_KA=10mA

-25℃ ≤ T_A≤ +85℃

ΔV_KA

4.5

-1.0

-0.5

1.5

-2.7

-2.0

mV/V

μA

ΔT

Ratio of Change in Reference

Input Voltage to the change in

Cathode Voltage

=10V~V_REF

ΔV_REF

ΔV_KA

I_KA=10mA

ΔV_KA

=36V~ 10V

I_KA=10mA, R₁=10kΩ,

R₂=∞

Reference Input Current

I_REF

I_KA=10mA, R₁=10kΩ

R₂=∞

Deviation of Reference Input

Current Over Full Temperature

ΔI_REF

0.4

1.2

μA

ΔT

-25℃ ≤ T_A≤ +85℃

Minimum Cathode Current for

Regulation

I_KA(MIN)

I_KA(OFF)

Z_KA

V_KA=V_REF

0.45

0.05

0.15

1.0

0.5

μA

Off-Stage Cathode Current

V_KA=36V, V_REF=0V

V_KA=V_REF,I_KA=1 to

100mA, f≤1kHz

Dynamic Impedance

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 4 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

TYPICAL PERFORMANCE CHARACTERISTICS

Cathode Current vs. Cathode Voltage

Change in Reference input voltage vs.

Cathode Voltage

Pulse Response

Dynamic Impedance vs. Frequency

Small Signal Voltage Amplification vs.

Frequency

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 5 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

PACKAGE INFORMATION

Dimension in SOT-23 Package (Unit: mm)

UNIT

b_p

H_E

A₁

L_p

1.40

0.95

2.04

1.78

0.50

0.35

0.19

0.08

3.10

2.70

1.65

1.20

3.00

2.20

0.100

0.013

0.50

0.20

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 6 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

Dimension in SOT89-3 Package (Unit: mm)

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 7 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

Dimension in TO-92 (Unit: mm)

Millimeters

Inches

Symbol

Min

Max

3.700

1.400

0.550

0.510

4.700

Min

Max

0.146

0.055

0.022

0.020

0.185

3.300

1.100

0.380

0.360

4.300

3.430

4.300

0.130

0.043

0.015

0.014

0.169

0.135

0.169

4.700

0.185

1.270 TYP

0.050 TYP

2.440

14.100

2.640

14.500

1.600

0.380

0.096

0.555

0.104

0.571

0.063

0.015

0.000

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 8 -

AiT Semiconductor Inc.

A431

www.ait-ic.com

SHUNT REGULATOR

ADJUSTABLE PRECISION

IMPORTANT NOTICE

AiT Semiconductor Inc. (AiT) reserves the right to make changes to any its product, specifications, to

discontinue any integrated circuit product or service without notice, and advises its customers to obtain the

latest version of relevant information to verify, before placing orders, that the information being relied on is

current.

AiT Semiconductor Inc.'s integrated circuit products are not designed, intended, authorized, or warranted to

be suitable for use in life support applications, devices or systems or other critical applications. Use of AiT

products in such applications is understood to be fully at the risk of the customer.

As used herein may

In order to

involve potential risks of death, personal injury, or server property, or environmental damage.

minimize risks associated with the customer's applications, the customer should provide adequate design and

operating safeguards.

AiT Semiconductor Inc. assumes to no liability to customer product design or application support. AiT

warrants the performance of its products of the specifications applicable at the time of sale.

REV2.3

- JAN 2012 RELEASED, OCT 2018 UPDATED -

- 9 -

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