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RS431BN

更新时间：2024-09-18 05:56:56

品牌：ORISTER

描述：Adjustable Precision Shunt Regulator

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RS431BN 概述

Adjustable Precision Shunt Regulator 可调式精密并联稳压器

RS431BN 数据手册

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Page No. : 1/1

RS431 Series Pin Assignment

RS431 Series

3-Lead Plastic SOT-23

Package Code: N

Pin 1: Reference

Pin 2: Cathode

Adjustable Precision Shunt Regulator

Pin 3: Anode

Description

The RS431 series are three-terminal adjustable regulators with

guaranteed thermal stability over applicable temperature ranges. The

output voltage may be set to any value between V_REF(approximately 2.5

volts) and 36 volts with two external resistors. These devices have a

typical dynamic output impedance of 0.2Ω. Active output circuitry provides

a very sharp turn-on characteristic, making these devices excellent

replacement for zener diodes in many applications.

3-Lead Plastic TO-92

Package Code: A

Pin 1: Reference

Pin 2: Anode

Pin 3: Cathode

Features

• Programmable Precise Output Voltage from 2.5V to 36V

• High Stability under Capacitive Load

• Low Temperature Deviation: 4.5mV Typical

• Low Dynamic Output Resistance: 0.2Ω Typical

• Sink Current Capacity from 1mA to 100 mA

• Low Output Noise

• Wide Operating Range of -40 to 125 ^oC

• Low Equivalent Full-range Temperature Coefficient with 20PPM/ ^oC Typical

Absolute Maximum Ratings

(Operating temperature range applies unless otherwise specified)

Characteristics

Cathode Voltage

Symbol

V_KA

Value

Unit

Cathode Current Range (Continuous)

Reference Input Current Range

I_K

-100~+150

0.05~+10

I_REF

SOT-23

370

770

TO-92

Power Dissipation

P_D

Operating Temperature Range (Max.)

Storage Temperature Range

T_opr

T_stg

-40~+125 *

-65~+150

^oC

Operating Conditions

Characteristics

Cathode Voltage

Symbol

V_KA

Min.

V_REF

Max.

Unit

Cathode Current Range (Continuous)

Operating Ambient Temperature Range

I_K

100

125

^oC

-40

DS-RS431-03 October, 2007

www.Orister.com

Page No. : 2/2

Functional Block Diagram & Symbol

Functional Block Diagram

Symbol

Cathode

Anode

Reference

Test Circuits

Fig 1. V_K=V_REF

Fig 2. V_K>V_REF

Fig 3. Off-State Current

I_I

V_K

I_REF

R₁

I_REF

I_K

I_OFF

I_K

V_REF

R₂

V_REF

Note: V_K=V_REF(1+R₁/R₂)+I_REFxR₁

Electrical Characteristics ^(T_A⁼²⁵^o^{C unless otherwise specified)}

Characteristics

Symbol

Test Conditions

Min

Typ

Max

Unit

0.4%

0.8%

2.49

2.48

2.50

2.51

2.52

Reference Input Voltage ^(Fig1)

V_REF

V_K=V_REF, I_K=10mA

T_min≤T_a≤T_{max (-40~+125}_℃

I_K=10mA,

Deviation of Reference Input Voltage

Over-Temperature ^(Fig1)

V_REF(dev)

4.5

1.0

0.5

0.7

0.4

2.7

2.0

)

mV/V

ΔV_REF

ΔV_K

ΔV_K=10V to V_REF

I_K=10mA,

Ratio of Change in Reference Input Voltage

to the Change in Cathode Voltage ^(Fig2)

ΔV_K=36V to 10V

I_K=10mA, R₁=10kΩ,

R₂=∞

Reference Input Current ^(Fig2)

I_REF

I_K=10mA, R₁=10kΩ,

Deviation of Reference Input Current Over

Full Temperature Range ^(Fig2)

Minimum Cathode Current for Regulation ^(Fig1)I_K(min)

Off-State Cathode Current ^(Fig3)

I_REF(dev)

1.2

R₂=∞, T_a=-40~+125 ^oC

V_K=V_REF

0.4

1.0

I_K(off)

V_K=36V, V_REF=0

V_K=V_REF, f≤1kHz

I_K=1 to 100mA

0.05

Dynamic Output Impedance ^(Fig1)

Z_K

0.15

0.5

DS-RS431-03 October, 2007

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Page No. : 3/3

Typical Performance Characteristics

DS-RS431-03 October, 2007

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Typical Performance Characteristics (Continued)

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Page No. : 5/5

Typical Performance Characteristics (Continued)

DS-RS431-03 October, 2007

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Page No. : 6/6

SOT-23 Dimension

DIM

Min.

Max.

3.04

1.60

1.30

0.50

2.30

0.10

0.177

0.67

1.15

2.75

0.65

Marking:

2.80

1.20

0.89

0.30

1.70

0.013

0.085

0.32

0.85

2.10

0.25

4 3 1

Pb Free Mark

(Note)

Pb-Free: "

Normal: None

B S

Note: Pb-free product can distinguish by the green

label or the extra description on the right

side of the label.

Pin Style: 1.Reference 2.Cathode 3.Anode

Material:

*: Typical, Unit: mm

• Lead solder plating: Sn60/Pb40 (Normal),

Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free)

• Mold Compound: Epoxy resin family,

flammability solid burning class: UL94V-0

3-Lead SOT-23 Plastic

Surface Mounted Package

Package Code: N

TO-92 Dimension

DIM

Min.

4.33

12.70

0.36

3.36

0.36

Max.

4.83

0.56

*1.27

3.76

0.56

*2.54

*1.27

*5°

Marking:

α2

α3

Pb Free Mark

(Note)

Pb-Free: "

R S

Normal: None

4 3 1

Control Code

Date Code

Note: Green label is used for pb-free packing

Pin Style: 1.Reference 2.Anode 3.Cathode

α1

α2

α3

Material:

*2°

• Lead solder plating: Sn60/Pb40 (Normal),

Sn/3.0Ag/0.5Cu or Pure-Tin (Pb-free)

• Mold Compound: Epoxy resin family,

flammability solid burning class: UL94V-0

*: Typical, Unit: mm

α1

3-Lead TO-92 Plastic Package

Package Code: A

Ordering Information

Package

SOT-23

TO-92

V_REF: 2.5±0.8%

RS431BN

V_REF: 2.5±0.4%

RS431AN

RS431BA

RS431AA

DS-RS431-03 October, 2007

www.Orister.com

Page No. : 7/7

Soldering Methods for Orister’s Products

1. Storage environment: Temperature=10^oC~35^oC Humidity=65%±15%

2. Reflow soldering of surface-mount devices

Figure 1: Temperature profile

Critical Zone

to T

Ramp-up

Tsmax

Tsmin

Preheat

Ramp-down

t 25^oC to Peak

Time

Profile Feature

Average ramp-up rate (T_Lto T_P)

Preheat

Sn-Pb Eutectic Assembly

Pb-Free Assembly

<3^oC/sec

- Temperature Min (Ts_min

)

100^oC

150^oC

200^oC

- Temperature Max (Ts_max

- Time (min to max) (ts)

Tsmax to T_L

)

60~120 sec

60~180 sec

- Ramp-up Rate

<3^oC/sec

Time maintained above:

- Temperature (T_L)

- Time (t_L)

183^oC

217^oC

60~150 sec

240^oC +0/-5^oC

60~150 sec

260^oC +0/-5^oC

Peak Temperature (T_P)

Time within 5^oC of actual Peak

10~30 sec

20~40 sec

Temperature (t_P)

Ramp-down Rate

<6^oC/sec

Time 25^oC to Peak Temperature

<6 minutes

<8 minutes

3. Flow (wave) soldering (solder dipping)

Products

Pb devices.

Peak temperature

245^oC ±5^oC

260^oC +0/-5^oC

Dipping time

5sec ±1sec

Pb-Free devices.

DS-RS431-03 October, 2007

www.Orister.com

Page No. : 8/8

Important Notice:

• All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of Orister Corporation.

• Orister Corporation reserves the right to make changes to its products without notice.

• Orister Corporation products are not warranted to be suitable for use in Life-Support Applications, or systems.

• Orister Corporation assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.

DS-RS431-03 October, 2007

www.Orister.com

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