Datasheet > LM431BQ

LM431BQ

更新时间： 2023-09-03 20:31:00

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
12页	1028K
描述
Automotive Precision Programmable Reference

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LM431BQ 数据手册

LM431BQ

Precision Programmable Reference

GENERAL DESCRIPTION

FEATURES

The LM431BQ is a precision programmable shunt

voltage reference that can be used in automotive

applications. It is a three-terminal adjustable-output

device that can keep stable under all capacitive loads.

It requires two external resistors to set the output

voltage from V_REFto 36V.

● AEC-Q100 Qualified for Automotive Applications

Device Temperature Grade 1

T_A= -40℃ to +125℃

● Adjustable Output Voltage: V_REFto 36V

● Sink-Current Capability: 1mA to 100mA

● ▲Reference Voltage Tolerance at +25℃: 0.5%

● Temperature Drift: 5mV (TYP)

● Output Impedance: 0.1Ω (TYP)

● ▲High Stability under Capacitive Load

● Low Output Noise

The LM431BQ features low dynamic impedance, low

noise, and low temperature coefficient to ensure a

stable output voltage over a wide range of operating

temperatures and currents. These high performances

make it very suitable for multiple applications, such as

precision audio components and flyback switching

power supplies.

● Operating Junction Temperature Range:

-40℃ to +125℃

● Available in a Green SOT-23 Package

This device is AEC-Q100 qualified (Automotive

Electronics Council (AEC) standard Q100 Grade 1) and

it is suitable for automotive applications.

APPLICATIONS

AEC-Q100 Grade 1 Applications

Portable, Battery-Powered Equipment

Voltage Monitoring

The LM431BQ is available in a Green SOT-23 package.

Flyback Switching Power Supplies

Instrumentation

Product Testing

Precision Audio Components

TYPICAL APPLICATION

Input

V_KA

I_KA

V_REF

Figure 1. Typical Application Circuit

SG Micro Corp

JUNE 2022 – REV. A. 1

www.sg-micro.com

12 3 4 5 6 7...12

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