AZ432AR-E1 [DIODES]

Voltage Reference, BIPolar;


型号：	AZ432AR-E1
厂家：	DIODES INCORPORATED
描述：	Voltage Reference, BIPolar CD
文件：	总15页 (文件大小：270K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

General Description

Features

The AZ432 series ICs are low voltage three-terminal

adjustable regulators with guaranteed thermal stability

over a full operation range. These ICs feature sharp

turn-on characteristics, low temperature coefficient

and low output impedance, which make them ideal

substitutes for Zener diodes in applications such as

switching power supply, charger, motherboard and

other adjustable regulators.

Wide Programmable Precise Output Voltage from

1.25V to 18V

High Stability under Capacitive Load

Low Temperature Deviation: 3mV Typical

Low Equivalent Full-Range Temperature Coeffi-

cient: 20PPM/ C Typical

Low Dynamic Output resistance: 0.05Ω Typical

High Sink Current Capacity from 55µA to 100

The output voltage can be set to any value between

1.25V and 18V with two external resistors.

Low Output Noise

Wide Operating Range of -40 to 125 C

The AZ432 precision reference is offered in two band-

gap tolerance: 0.5% and 1%.

Applications

These ICs are available in 4 packages: TO-92, SOT-

23-3, SOT-23-5, SOT-89.

Graphic Card

PC Motherboard

Voltage Adapter

Switching Power Supply

Charger

SOT-23-3

TO-92

SOT-23-5

SOT-89

Figure 1. Package Types of AZ432

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Pin Configuration

Z Package

(TO-92)

N Package

(SOT-23-3)

K Package

(SOT-23-5)

R Package

(SOT-89)

ANODE

REF

3 CATHODE

2 ANODE

1 REF

CATHODE

REF

CATHODE

REF ANODE CATHODE

Figure 2. Pin Configuration of AZ432 (Top View)

Functional Block Diagram

CATHODE

REF

V_REF

ANODE

Figure 3. Functional Block Diagram of AZ432

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Ordering Information

Package

Temperature Range

Voltage Tolerance

Part Number

AZ432AZ

AZ432BZ

AZ432AN

AZ432BN

AZ432AK

AZ432BK

AZ432AR

AZ432BR

Marking ID

AZ432AZ

AZ432BZ

N48

Packing Type

Bulk

0.5%

TO-92

Ammo

SOT-23-3

SOT-23-5

SOT - 89

Reel

N49

-40 to 125^oC

K43

K44

R42A

R42B

Some of our products are available in Lead Free packages; If buyers need Lead Free product, please add -E1 after

the part number in your order. For example, AZ358M is a standard tin-lead product, AZ358M-E1 means a Lead

Free product.

AZ432 X

Circuit Type

Bandgap Tolerance

A: 0.5%

Package

Z: TO-92

N: SOT-23-3

K: SOT-23-5

R: SOT-89

B: 1%

Absolute Maximum Ratings (Note 1)

Parameter

Symbol

Value

Unit

Cathode Voltage

Cathode Current Range (Continuous)

Reference Input Current Range

-100 to 100

REF

Z,R Package

N,K Package

770

370

Power Dissipation

Storage Temperature Range

-65 to 150

STG

TO-92

130

330

250

100

SOT-23-3

SOT-23-5

SOT-89

Package Thermal Impedance

C/W

Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the

device. These are stress ratings only, and functional operation of the device at these or any other conditions

beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Max-

imum Ratings" for extended periods may affect device reliability.

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Recommended Operation Ratings

Parameter

Cathode Voltage

Symbol

Min

REF

Max

Unit

Cathode Current

Operating Ambient Temperature Range

0.1

-40

100

125

Electrical Characteristics

(Typical and limits apply for T =25 C unless otherwise noted.)

Test

Circuit

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

0.5%

1.244

1.238

1.250

1.256

1.262

Reference Voltage

V_REFV_KA=V_REF,I_KA=10mA

0 to 70^oC

-40 to 85^oC

V_KA=V_REF

I_KA=10mA

Deviation of Reference Voltage

Over-Temperature

∆ V_REF

Ratio of Change in V_REFto the

Change in Cathode Voltage

∆ V_REF

∆ V_KA

I_KA=10mA, ∆Vz: V_REFto 16V

I_KA=10mA, R1=10KΩ, R2=∞

-0.5

-1.5 mV/V

Reference Input Current

0.15

I_REF

0.4

µ A

Deviation of Reference Current

Over Full Temperature Range

I_KA=10mA, R1=10KΩ, R2=∞

T_A=-40 to 85^oC

∆I_REF

0.1

0.4

I_KA

(MIN)

Minimum Cathode Current for

Regulation

V_KA=V_REF

_REF=0, V_KA=18V

0.04

0.01

0.10

0.05

I_KA

Off-State Cathode

Current

µ A

(OFF) V_KA=6V, V_REF=0

V_KA=V_REF, I_KA=1 to 100mA

f≤1.0kHz

Dynamic Impedance

Z_KA

0.05

0.15

Ω

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Electrical Characteristics (Continued)

V_KA

V_IN

I_KA

V_REF

Figure 4. Test Circuit 4 for V_KA=V_REF

V_IN

V_KA

I_KA

I_REF

V_KA=V_REF(1+R1/R2)+ I_REFR1

V_REF

Figure 5. Test Circuit 5 for V_KA>V_REF

V_KA

V_IN

I_OFF

Figure 6. Test Circuit 6 for I_OFF

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Typical Performance Characteristics

1.253

0.18

R2=∞

1.252

_KA=10mA

I_KA^KA=10^Rm^EFA

0.17

0.16

0.15

0.14

0.13

0.12

R1=10KΩ

1.251

1.250

1.249

1.248

1.247

-50

-25

100

125

150

-50

-25

100

Ambient Temperature (^oC)

Figure 8. Reference Current vs. Ambient Temperature

Figure 7. Reference Voltage vs. Ambient Temperature

150

400

V_KA=V_REF

T_A=25^oC

300

200

T_A=25^oC

100

-100

-200

-300

-50

-100

-150

-1

-1.0

-0.5

0.0

0.5

1.0

1.5

Cathode Voltage (V)

Figure 9. Cathode Current vs. Cathode Voltage

Figure 10. Current vs. cathode Voltage

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Typical Performance Characteristics (Continued)

Output

360

I _KA

6.8K

I_KA=10mA

T_A=25^oC

10µF

4.3K

GND

500K

100

10k

100k

Small Signal Frequency (HZ)

Figure 11. Small Signal Voltage Gain vs. Frequency

Output

100Ω

0.1

I_KA

50Ω

0.01

GND

10k

100k

Frequency (Hz)

Figure 12. Dynamic Impedance vs. Frequency

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Typical Performance Characteristics (Continued)

Iutput

Output

GND

1.8KΩ

Pulse

Generator

50Ω

f=100KHz

Output

-1

Time (µS)

Figure 13. Pulse Response of Input and Output Voltage

-0.3

I_KA=10mA

∆V_KA=V_REFto 16V.

-0.4

-0.5

-40

120

Ambient Temperature (^oC)

Figure 14. Ratio of Delta Reference Voltage to the Ratio of Delta

Cathode Voltage vs. Ambient Temperature

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Typical Applications

V_OUT

V_IN

V_O=(1+R1/R2) V_REF

V_REF

AZ432

Figure 15: Shunt Regulator

V_IN

V_OUT

V_O=(1+R2/R3) V_REF

V_REF

AZ432

Figure 16: High Current Shunt Regulator

V_IN

I_out

I_OUT= V_REF/R2 + I_KA

AZ432

Figure17: Current Source or Current Limit

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Typical Applications (Continued)

AZ1117

2.5V/1A

8.2K

250

AZ432

250

Figure18: Precision 2.5V/1A Regulator

V_OUT

R2 680

COMP

AZ431

PWM Controller

VFB

PS521

Figure 19: PWM Converter with Reference

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Mechanical Dimensions

TO - 92

Unit: mm

2.54

Φ1.5×0.2

Φ4.5±0.1

0.46

0.38

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Mechanical Dimensions (Continued)

Unit: mm

SOT - 23-3

0.200 MIN

0.550 REF

2.900±0.100

+0.050

0.400

-0.010

0.950±0.030

1.900 REF

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Mechanical Dimensions (Continued)

Unit: mm

SOT - 23 - 5

2.90±0.10

0.15±0.07

0.25±0.05

4°

R0.15±0.05

R0.10

0.40±0.10

0.95±0.025

10°±5°

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

Data Sheet

LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR

AZ432

Mechanical Dimensions (Continued)

Unit: mm

SOT - 89

4.50±0.10

1.73±0.10

1.50±0.10

1.40

R0.20

3°

0.42

0.42±0.06

0.40±0.04

0.50±0.06

3.00

R0.15

BCD Semiconductor Manufacturing Limited

Dec. 2003 Rev. 1. 1

http://www.bcdsemi.com

http://www.aacmicro.com

BCD Semiconductor Corporation

860 Hillview Court, Suite 160, Milpitas, CA 95035, USA

Shanghai SIM-BCD Semiconductor manufacturing Co., Ltd.

800 Yi Shan Road, Shanghai 200233, PRC

Tel: +1-408-586 8809, Fax: +1-408-586 8802

Tel: +86-21-6485-1491, Fax: +86-21-5450-0008

Tel: +86-21-6495 9539, Fax: +86-21-6485 9673

Advanced Analog circuits (Shanghai) Corporation

8F, B Zone, 900 Yi Shan Road, Shanghai 200233, PRC

BCD Semiconductor (Taiwan) company Limited

Room 2210, 22nd Fl, 333, Keelung Road, Sec. 1, TaiPei (110), Taiwan

Tel: +886-2-2758 6828, Fax: +886-2-2758 6892

IMPORTANT NOTICE

BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any pro-

ducts or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for

use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any

liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limi-

ted does not convey any license under its patent rights or other rights nor the rights of others.

AZ432AR-E1 [DIODES]

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