Az431 - Regulador Shunt

8/11/2019 Az431 - Regulador Shunt

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ADJUSTABLE PRECISION SHUNT REGULATORS AZ431

Data Sheet

Apr. 2005 Rev. 1. 7 BCD Semiconductor Manufacturing Limited

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Figure 2. Pin Configuration of AZ431 (Top View)

M Package(SOIC-8)

Z Package(TO-92)

(SOT-23-3)N Package R Package

(SOT-89)

Figure 3. Functional Block Diagram of AZ431

Pin Configuration

Functional Block Diagram

REF

ANODE

NC

CATHODE

NC

1

2

3

4 5

6

7

8

ANODE

REF CATHODE REF ANODE CATHODE

1 2 31 2

3 ANODE

ANODE

ANODE

K Package(SOT-23-5)

NC

CATHODE

ANODE

REF3

2

1

4

5

NC

4

REF

VREF

CATHODE

ANODE

+

-

CATHODE

ANODE

REF1

2

3


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Data Sheet


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Ordering Information (Continued)

20V Product s

PackageTempera-

ture RangeVoltage

Tolerance

Part Number Marking ID PackingTypeTin Lead Lead Free Tin Lead Lead Free

SOT-23-3 -40 to 125 oC0.4% AZ431AN-BTR AZ431AN-BTRE1 N44 EA4 Tape & Reel

0.8% AZ431BN-BTR AZ431BN-BTRE1 N45 EA5 Tape & Reel

SOT-23-5 -40 to 125 oC 0.4% AZ431AK-BTR AZ431AK-BTRE1 K4A E4A Tape & Reel

0.8% AZ431BK-BTR AZ431BK-BTRE1 K4B E4B Tape & Reel

TO-92 -40 to 125

oC

0.4% AZ431AZ-B AZ431AZ-BE1 AZ431AZ-B AZ431AZ-BE1 Bulk

0.4% AZ431AZ-BTR AZ431AZ-BTRE1 AZ431AZ-B AZ431AZ-BE1 Ammo

0.8% AZ431BZ-B AZ431BZ-BE1 AZ431BZ-B AZ431BZ-BE1 Bulk

0.8% AZ431BZ-BTR AZ431BZ-BTRE1 AZ431BZ-B AZ431BZ-BE1 Ammo

SOIC-8 -40 to 125 oC

0.4% AZ431AM-B AZ431AM-BE1 AZ431AM-B AZ431AM-BE1 Tube

0.4% AZ431AM-BTR AZ431AM-BTRE1 AZ431AM-B AZ431AM-BE1 Tape & Reel

0.8% AZ431BM-B AZ431BM-BE1 AZ431BM-B AZ431BM-BE1 Tube

0.8% AZ431BM-BTR AZ431BM-BTRE1 AZ431BM-B AZ431BM-BE1 Tape & Reel

SOT-89 -40 to 125 oC0.4% AZ431AR-BTR AZ431AR-BTRE1 431C E43C Tape & Reel

0.8% AZ431BR-BTR AZ431BR-BTRE1 431D E43D Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.


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Data Sheet


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Parameter Test

CircuitSymbol Conditions

AZ431 (40V)Unit

Min Typ Max

Reference Voltage 0.4%

4 VREF VKA=VREF, IKA=10mA2.490 2.500 2.510

V 0.8% 2.480 2.500 2.520

Deviation of ReferenceVoltage Over-Temperature

4 VREFVKA=VREFIKA= 10mA

0 to 70 oC 4.5 8mV

-40 to 85 oC 4.5 10

Ratio of Change in Reference

Voltage to the Change inCathode Voltage

5VREFVKA IKA=10mA

VKA=10V to V REF

-1.0 -2.7

mV/VVKA=36V to 10V

-0.5 -2.0

Reference Current 5 IREF IKA=10mA,R1=10K , R2= 0.7 4 A

Deviation of Reference CurrentOver Full Temperature Range

5 IREFIKA=10mA, R1=10K

R2= , TA=-40 to 85oC

0.4 1.2 A

Minimum Cathode Current forRegulation

4IKA

(MIN)VKA=VREF 0.4 1.0 mA

Off-State Cathode Current 6IKA

(OFF)VKA=36 V, V REF =0 0.05 1.0

A

Dynamic Impedance 4Z

KA

VKA=VREF, I KA=1 to 100mA,

f 1.0KHz 0.15 0.5

Electrical Characteris tics for AZ431(40V)Operating Conditions: T A=25 oC unless otherwise specified.


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Data Sheet


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Electrical Characteris tics for AZ431(20V)

Parameter Test

CircuitSymbol Conditions

AZ431 (20V)Unit

Min Typ Max

Reference Voltage 0.4%

4 VREF VKA=VREF, IKA=10mA2.490 2.500 2.510

V 0.8% 2.480 2.500 2.520

Deviation of Reference Voltage Over-Temperature

4 VREFVKA=VREFIKA=10mA

0 to 70 oC 4.5 8mV

-40 to 85 oC 4.5 10

Ratio of Change in Reference

Voltage to the Change inCathode Voltage

5VREFVKA IKA=10mA

VKA=10V to V REF

-1.0 -2.7

mV/VVKA=18V to 10V

-0.5 -2.0

Reference Current 5 IREF IKA=10mA, R1=10K , R2= 0.7 4 A

Deviation of Reference CurrentOver Full Temperature Range

5 IREFIKA=10mA, R1=10K ,R2=

TA=-40 to 85oC

0.4 1.2 A

Minimum Cathode Current for Regulation

4IKA

(MIN)VKA=VREF 0.4 1.0 mA

Off-State Cathode Current 6IKA

(OFF)VKA=18V, V REF =0 0.05 1.0

A

Dynamic Impedance 4 ZKAVKA=VREF, IKA=1 to 100mAf 1.0KHz 0.2 0.5

Operating Conditions: T A=25oC unless otherwise specified.


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Data Sheet


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Figure 4. Test Circuit 4 for V KA=Vref

Figure 5. Test Circuit 5 for V KA>Vref

Figure 6. Test Circuit 6 for I OFF

IOFF

VINVKA

Electrical Characteristics (Continued)

VIN VKA

R1

IKA

VREF

VIN VKA

IKA

R1

R2 VREF

VKA=VREF (1+R1/R2)+ I REF R1

IREF

R3


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Data Sheet


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Figure 7. Reference Voltage vs. Ambient Temperature Figure 8. Reference Current vs. Ambient Temperature

Figure 9. Cathode Current vs. Cathode Voltage Figure 10. Current vs. Cathode Voltage

Typical Performance Characteristi cs

-60 -40 -20 0 20 40 60 80 100 120 1402.485

2.490

2.495

2.500

2.505

2.510

R e

f e r e n c e

V o

l t a g e

( V )

Ambient Temperature ( oC)

VKA

= VREF

IKA

= 10mA

-60 -40 -20 0 20 40 60 80 100 120 1400.0

0.5

1.0

1.5

R1=10K,R

2=Infinite

IKA

=10mA

R e

f e r e n c e

C u r r e n

t ( A )

Ambient Temperature ( 0C)

-2 -1 0 1 2 3-100

-50

0

50

100

150

C a

t h o

d e

C u r r e n

t ( m A )

Cathode Voltage (V)

VKA

=VREF

T A

=25 0C

-1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5

-200

0

200

400

600

800

C a

t h o

d e

C u r r e n

t ( A )

Cathode Voltage (V)

VKA

=VREF

T A=250C


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Data Sheet


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Figure 11. Off-state Cathode Current vs. Figure 12. Ratio of Delta Reference Voltage to the

Figure 13. Small Signal Voltage Gain vs. Frequency

Ambient Temperature Ratio of Delta Cathode Voltage

Typical Performance Characterist ics (Continued)

-40 -20 0 20 40 60 80 100 1200.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

O f f - S t a

t e C a

t h o

d e

C u r r e n

t ( A )


AZ431-20V:VKA

=18V AZ431-40V:V

KA=36V

VREF

=0

-40 -20 0 20 40 60 80 100 120-1.4

-1.3

-1.2

-1.1

-1.0

-0.9 AZ431-20V: VKA

=3.5V to 18V AZ431-40V: V

KA=3.5V to 36V

V

R E F

/ V

K A

( m V / V )


1K 10K 100K 1000K0

10

20

30

40

50

601K 10K 100K 1000K

0

10

20

30

40

50

60

T A

= 25 oCIKA

= 10mA

A v

( d B )

Small Signal Frequency

10uF

8.2K

15K I KA

Output

242

GND


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Data Sheet


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Figure 14. Reference Impedance vs. Frequency

Figure 15. Stability Boundary Conditions vs. Load Capacitance

IKAR1 (10K)

R2

150

1K 10K 100K 1000K0.1

1

10

R e

f e r e n c e

I m p e

d a n c e

( )

Frequency (Hz)

IKA

=10mA

T A

=25 oC

Typical Performance Characterist ics (Continued)

GND

Output

50

1K

IKA

0.01uF 0.1uF 1uF0

10

20

30

40

50

60

70

80

90

100

2uF

B

A

A: VKA

=5VB: V

KA=10V

VKA

=15V: No oscillation

Load Capacitance

C a

t h o

d e

C u r r e n

t ( m A )


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Data Sheet


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Figure 16. Pulse Response of Input and Output Voltage

Pulse

Generator f=100KHz

220

50

Output

GND0 2 4 6

0

1

2

3

4

5

Input

I n p u t a n

d O u

t p u

t V o

l t a g e

( V )

Time ( S)

Output

Typical Performance Characteris tics (Cont inued)


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Data Sheet


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Figure 21. PWM Converter with Reference

Figure20. Precision 5V 1.5A Regulator

AZ1117VIN VOUT Adjust

8.2K

AZ431

R1R2

R3

250

250

5V, 1.5A

Typical Applications (Continued)

PWM Controller

C1

R1

R2 680

U2

3

4

PS521

C2

2

R3 R4

R5

VOUT

AZ431

Q1COMP

VFB


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Data Sheet


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Mechanical Dimensions

TO-92 Unit: mm (inch)

2.440(0.096)

2.640(0.104)

0.380(0.015)0.550(0.022)

1.600(0.063)

MAX

1 4

. 1 0 0 ( 0

. 5 5 5

)

1 4

. 5 0 0 ( 0

. 5 7 1 )

1.270(0.050)TYP

3 .

3 0 0 ( 0

. 1 3 0 )

3 .

7 0 0 ( 0

. 1 4 6 )

4 .

3 0 0 ( 0

. 1 6 9 )

4 .

7 0 0 ( 0

. 1 8 5

)

1.100(0.043)

1.400(0.055)

4.400(0.173)

4.700(0.185)

3.430(0.135)MIN

0.360(0.014)

0.510(0.020)

0.000(0.000)

0.380(0.015)


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Data Sheet


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SOT-23-3

Mechanical Dimensions (Continued)

Unit: mm

0.600 0.100

2.4000 .100

3 . 0

2.9000.100

0.9500.030

1.900 REF

2. 0

1.3000.100

1.050RE F

1.000 0.100

0.060 0.040

0.550 REF

7. 0

7 . 0

0 . 0

1 0

. 0

0.400 +0.050-0.010

0 .100

+0.050

-0 .020

0.10 0GAUGEPLANE

0.200 MIN


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Data Sheet


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SOT- 89


Unit: mm

1.40

1.730.10

4.500.10

0.420.420.06

0.500.06

3.00

1. 050.15

2.450.15

4.10 0.15

1.500.10

0.400.04

1 0

3

1 0

*

R0.20

R0.15

00. 076

3


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Data Sheet


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Unit: mmSOIC- 8

8

D

44

32

R0 . 1 5

R0 . 1 5

1.00

0.420.09

4.90.10

1.550. 20

0.20 .10

0.90

0.8

6.000.20

0. 220.03

0.700. 025

0.32

0.20

3 .900.1 0

7

7 8

20:1D

1.27


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Az431 - Regulador Shunt

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