AZ431BMATR [BCDSEMI]
ADJUSTABLE PRECISION SHUNT REGULATORS; 可调式精密并联稳压器
| 型号： | AZ431BMATR |
| 厂家： | 
BCD SEMICONDUCTOR MANUFACTURING LIMITED |
| 描述： | ADJUSTABLE PRECISION SHUNT REGULATORS |
| 文件： | 总20页 (文件大小：187K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
General Description
Features
The AZ431 series ICs are three-terminal adjustable
shunt 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 and other adjustable regulators.
·
Programmable Precise Output Voltage from 2.5V
to 36V or 18V
Very Accurate Reference Voltage: 0.15% Typical
High Stability under Capacitive Load
Low Temperature Deviation: 4.5mV Typical
Low Equivalent Full-range Temperature Coeffi-
·
·
·
·
o
cient with 20PPM/ C Typical
·
·
·
·
Low Dynamic Output Resistance: 0.2Ω Typical
Sink Current Capacity from 1mA to 100 mA
Low Output Noise
The AZ431 series ICs contain two voltage types,
AZ431-A for 40V and AZ431-B for 20V. The output
voltage of both types can be set to any value between
V
(2.5V) and the corresponding maximum cathode
o
REF
Wide Operating Range of -40 to 125 C
voltage.
Applications
The AZ431 precision reference is offered in two band-
gap tolerance: 0.4% and 0.8%.
·
·
·
·
·
Charger
Voltage Adapter
Switching Power Supply
Graphic Card
Precision Voltage Reference
These ICs are available in 5 Packages: TO-92, SOT-23-
3, SOT-23-5, SOT-89 and SOIC-8.
SOIC-8
SOT-89
TO-92
SOT-23-5
SOT-23-3
Figure 1. Package Types of AZ431
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Pin Configuration
R Package
(SOT-89)
N Package
(SOT-23-3)
M Package
(SOIC-8)
ANODE
CATHODE
1
8
7
6
5
REF
3
ANODE
ANODE
NC
2
3
4
ANODE
ANODE
1
2
3
1
2
NC
REF ANODE CATHODE
REF
CATHODE
K Package
(SOT-23-5)
Z Package
(TO-92)
3
NC
NC
1
2
3
5
4
ANODE
REF
CATHODE
2
1
ANODE
REF
CATHODE
Figure 2. Pin Configuration of AZ431 (Top View)
Functional Block Diagram
CATHODE
+
-
REF
VREF
ANODE
Figure 3. Functional Block Diagram of AZ431
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Ordering Information
AZ431
-
E1: Lead-Free
Blank: Tin Lead
Circuit Type
TR: Tape and Reel or Ammo
Blank: Tube or Bulk
Bandage Tolerance
A: 0.4%
B: 0.8%
A: AZ431(40V)
B: AZ431(20V)
Package
M: SOIC-8
Z: TO-92
N: SOT-23-3 K: SOT-23-5
R: SOT-89
40V Products
Part Number
Marking ID
Tin Lead Lead Free
Tempera-
ture Range Tolerance
Voltage
Packing
Type
Package
Tin Lead
Lead Free
0.4%
AZ431AN-ATR
AZ431BN-ATR
AZ431AK-ATR
AZ431BK-ATR
AZ431AZ-A
AZ431AN-ATRE1
AZ431BN-ATRE1
AZ431AK-ATRE1
AZ431BK-ATRE1
AZ431AZ-AE1
N41
EA1
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Bulk
-40 to 125oC
0.8%
SOT-23-3
SOT-23-5
N42
EA2
-40 to 125oC
0.4%
K3A
E3A
0.8%
0.4%
0.4%
K3B
E3B
AZ431AZ-A
AZ431AZ-A
AZ431BZ-A
AZ431BZ-A
AZ431AM-A
AZ431AZ-AE1
AZ431AZ-AE1
AZ431BZ-AE1
AZ431BZ-AE1
AZ431AM-AE1
AZ431AZ-ATR
AZ431BZ-A
AZ431AZ-ATRE1
AZ431BZ-AE1
Ammo
-40 to 125oC
0.8%
TO-92
Bulk
0.8%
0.4%
AZ431BZ-ATR
AZ431AM-A
AZ431BZ-ATRE1
AZ431AM-AE1
Ammo
Tube
-40 to 125oC
-40 to 125oC
0.4%
0.8%
0.8%
0.4%
0.8%
AZ431AM-ATR
AZ431BM-A
AZ431AM-ATRE1 AZ431AM-A
AZ431BM-AE1 AZ431BM-A
AZ431BM-ATRE1 AZ431BM-A
AZ431AM-AE1 Tape & Reel
AZ431BM-AE1 Tube
AZ431BM-AE1 Tape & Reel
SOIC-8
SOT-89
AZ431BM-ATR
AZ431AR-ATR
AZ431BR-ATR
AZ431AR-ATRE1
AZ431BR-ATRE1
431A
431B
E43A
E43B
Tape & Reel
Tape & Reel
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Ordering Information (Continued)
20V Products
Part Number
Marking ID
Tin Lead Lead Free
Tempera-
ture Range Tolerance
Voltage
Packing
Type
Package
SOT-23-3
SOT-23-5
Tin Lead
Lead Free
0.4%
AZ431AN-BTR
AZ431BN-BTR
AZ431AK-BTR
AZ431BK-BTR
AZ431AZ-B
AZ431AN-BTRE1
AZ431BN-BTRE1
AZ431AK-BTRE1
AZ431BK-BTRE1
AZ431AZ-BE1
N44
EA4
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Bulk
-40 to 125oC
0.8%
N45
EA5
-40 to 125oC
0.4%
K4A
E4A
0.8%
0.4%
0.4%
K4B
E4B
AZ431AZ-B
AZ431AZ-B
AZ431BZ-B
AZ431BZ-B
AZ431AM-B
AZ431AZ-BE1
AZ431AZ-BE1
AZ431BZ-BE1
AZ431BZ-BE1
AZ431AZ-BTR
AZ431BZ-B
AZ431AZ-BTRE1
AZ431BZ-BE1
Ammo
-40 to 125oC
0.8%
TO-92
Bulk
0.8%
0.4%
0.4%
AZ431BZ-BTR
AZ431AM-B
AZ431BZ-BTRE1
AZ431AM-BE1
Ammo
AZ431AM-BE1
AZ431AM-BE1 Tape & Reel
AZ431BM-BE1 Tube
AZ431BM-BE1 Tape & Reel
Tube
AZ431AM-BTR
AZ431BM-B
AZ431AM-BTRE1 AZ431AM-B
AZ431BM-BE1 AZ431BM-B
AZ431BM-BTRE1 AZ431BM-B
-40 to 125oC
0.8%
SOIC-8
SOT-89
0.8%
0.4%
AZ431BM-BTR
AZ431AR-BTR
AZ431BR-BTR
AZ431AR-BTRE1
AZ431BR-BTRE1
431C
431D
E43C
E43D
Tape & Reel
Tape & Reel
-40 to 125oC
0.8%
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
AZ431 (40V): 40
VKA
Cathode Voltage
V
AZ431 (20V): 20
-100 to +150
10
IKA
Cathode Current Range (Continuous)
Reference Input Current Range
mA
mA
IREF
M,Z,R Package: 770
N,K Package: 370
160
PD
Power Dissipation
mW
oC
oC
TJ
Junction Temperature
TSTG
Storage Temperature Range
-65 to +150
M Package: 150
N Package: 330
Z Package: 150
oC/W
θJA
Package Thermal Impedance
R Package: 50
K Package: 250
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 Maximum
Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
AZ431(40V): 36
AZ431(20V): 18
100
Unit
V
VKA
VREF
Cathode Voltage
IKA
Cathode Current
1.0
-40
mA
oC
Operating Ambient
Temperature Range
125
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Electrical Characteristics for AZ431(40V)
o
Operating Conditions: T =25 C unless otherwise specified.
A
AZ431 (40V)
Min Typ Max
Test
Circuit
Parameter
Symbol
Conditions
Unit
0.4%
0.8%
2.490 2.500 2.510
2.480 2.500 2.520
VREF
VKA=VREF, IKA=10mA
Reference Voltage
4
V
0 to 70oC
4.5
4.5
8
VKA=VREF
Deviation of Reference
Voltage Over-Temperature
∆VREF
4
5
mV
IKA= 10mA
-40 to 85oC
10
∆ VKA
10V to VREF
∆VKA
36V to 10V
=
-1.0
-2.7
Ratio of Change in Reference
Voltage to the Change in
Cathode Voltage
∆VREF
∆VKA
IKA=10mA
mV/V
=
-0.5
0.7
-2.0
4
IREF
IKA=10mA,R1=10KΩ, R2=∞
Reference Current
5
5
µ A
µ A
IKA=10mA, R1=10KΩ
R2=∞, TA=-40 to 85oC
Deviation of Reference Current
Over Full Temperature Range
∆IREF
0.4
1.2
IKA
Minimum Cathode Current for
Regulation
VKA=VREF
4
6
4
0.4
1.0
1.0
0.5
mA
(MIN)
IKA
µ A
VKA=36 V, VREF=0
Off-State Cathode Current
Dynamic Impedance
0.05
0.15
(OFF)
VKA=VREF, IKA=1 to 100mA,
ZKA
Ω
f ≤ 1.0KHz
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Electrical Characteristics for AZ431(20V)
o
Operating Conditions: T =25 C unless otherwise specified.
A
AZ431 (20V)
Min Typ Max
Test
Circuit
Parameter
Symbol
Conditions
Unit
0.4%
0.8%
2.490 2.500 2.510
2.480 2.500 2.520
VREF
VKA=VREF, IKA=10mA
Reference Voltage
4
V
0 to 70oC
4.5
4.5
8
VKA=VREF
Deviation of Reference Voltage
Over-Temperature
∆VREF
4
5
mV
IKA=10mA
-40 to 85oC
10
∆ VKA
10V to VREF
∆VKA
18V to 10V
=
-1.0
-2.7
Ratio of Change in Reference
Voltage to the Change in
Cathode Voltage
∆VREF
∆VKA
IKA=10mA
mV/V
=
-0.5
0.7
-2.0
4
IREF
IKA=10mA, R1=10KΩ, R2=∞
Reference Current
5
5
µ A
µ A
IKA=10mA, R1=10KΩ,R2=∞
TA=-40 to 85oC
Deviation of Reference Current
Over Full Temperature Range
∆IREF
0.4
1.2
IKA
Minimum Cathode Current for
Regulation
VKA=VREF
4
6
4
0.4
0.05
0.2
1.0
1.0
0.5
mA
(MIN)
IKA
µ A
VKA=18V, VREF=0
Off-State Cathode Current
Dynamic Impedance
(OFF)
VKA=VREF, IKA=1 to 100mA
ZKA
Ω
f ≤ 1.0KHz
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Electrical Characteristics (Continued)
R1
VKA
VIN
IKA
VREF
Figure 4. Test Circuit 4 for VKA=Vref
R3
VIN
VKA
IKA
R1
IREF
VKA=VREF(1+R1/R2)+ IREF R1
R2
VREF
Figure 5. Test Circuit 5 for VKA>Vref
VKA
VIN
IOFF
Figure 6. Test Circuit 6 for IOFF
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics
2.510
2.505
2.500
2.495
2.490
2.485
1.5
1.0
0.5
0.0
R1=10K,R2=Infinite
IKA=10mA
VKA = VREF
IKA = 10mA
-60 -40 -20
0
20
40
60
80 100 120 140
-60 -40 -20
0
20
40
60
80 100 120 140
Ambient Temperature (oC)
Ambient Temperature (0C)
Figure 7. Reference Voltage vs. Ambient Temperature
Figure 8. Reference Current vs. Ambient Temperature
800
150
VKA=VREF
TA=250C
600
400
200
0
VKA=VREF
TA=250C
100
50
0
-50
-200
-100
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
-2
-1
0
1
2
3
Cathode Voltage (V)
Cathode Voltage (V)
Figure 9. Cathode Current vs. Cathode Voltage
Figure 10. Current vs. Cathode Voltage
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
2.0
1.8
-0.9
AZ431-20V: VKA=3.5V to 18V
AZ431-40V: VKA=3.5V to 36V
1.6
AZ431-20V:VKA=18V
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-1.0
-1.1
-1.2
-1.3
-1.4
AZ431-40V:VKA=36V
VREF=0
-40
-20
0
20
40
60
80
100
120
-40
-20
0
20
40
60
80
100
120
Ambient Temperature (oC)
Ambient Temperature (oC)
Figure 11. Off-state Cathode Current vs.
Ambient Temperature
Figure 12. Ratio of Delta Reference Voltage to the
Ratio of Delta Cathode Voltage
Output
1K
60
10K
100K
1000K
60
50
40
30
20
10
0
I KA
15K
242
50
40
30
20
10
0
10uF
TA = 25oC
KA = 10mA
I
8.2K
GND
1K
10K
100K
1000K
Small Signal Frequency
Figure 13. Small Signal Voltage Gain vs. Frequency
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
IKA=10mA
TA=25oC
Output
10
1K
IKA
50
1
GND
0.1
1K
10K
100K
1000K
Frequency (Hz)
Figure 14. Reference Impedance vs. Frequency
100
90
80
70
60
50
40
30
20
10
0
A:
B:
VKA=5V
VKA=10V
150
R1 (10K)
VKA=15V: No oscillation
IKA
A
B
R2
0.01uF
0.1uF
1uF
2uF
Load Capacitance
Figure 15. Stability Boundary Conditions vs. Load Capacitance
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
5
Input
Output
4
3
220
Pulse
Generator
f=100KHz
50
Output
2
1
0
GND
0
2
4
6
Time (µS)
Figure 16. Pulse Response of Input and Output Voltage
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Application
R3
VOUT
VIN
R1
V =(1+R1/R2) V
O
REF
VREF
R2
AZ431
Figure 17. Shunt Regulator
VIN
VOUT
R1
R4
V =(1+R2/R3)*V
R2
O
REF
VREF
R3
AZ431
Figure 18. High Current Shunt Regulator
R2
VIN
Iout
I
= V /R2 + I
REF KA
OUT
R1
AZ431
Figure19. Current Source or Current Limit
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Application (Continued)
V
AZ1117
Adjust
VOUT
IN
R1
8.2K
5V, 1.5A
R2
250
AZ431
R3
250
Figure20. Precision 5V 1.5A Regulator
R3
R4
C1
R1
VOUT
R2 680
R5
C2
U2
Q1
3
4
COMP
2
AZ431
PWM Controller
VFB
PS521
Figure 21. PWM Converter with Reference
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions
TO-92
Unit: mm (inch)
1.100(0.043)
3.430(0.135)
MIN
1.400(0.055)
0.360(0.014)
0.510(0.020)
0.000(0.000)
0.380(0.015)
Φ1.600(0.063)
MAX
4.400(0.173)
4.700(0.185)
0.380(0.015)
0.550(0.022)
1.270(0.050)
TYP
2.440(0.096)
2.640(0.104)
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOT-23-3
Unit: mm(inch)
0.100(0.004) GAUGE PLANE
7.0°
4×R0.100(0.004)
3.0 °
0.500(0.020)
0.700(0.028)
R0.100(0.004)
0.900(0.035)
1.100(0.043)
7.0°
~
0.0° 10.0°
2.0°
0.020(0.001)
0.100(0.004)
1.050(0.041)REF
0.080(0.003)
0.150(0.006)
0.200(0.008)MIN
0.550(0.022)REF
2.800(0.110)
3.000(0.118)
1.200(0.047)
1.400(0.055)
2.300(0.091)
2.500(0.098)
0.390(0.015)
0.450(0.018)
0.920(0.036)
0.980(0.039)
1.900(0.075)REF
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOT-23-5
Unit: mm(inch)
2.800(0.110)
3.000(0.118)
0.080(0.003)
0.220(0.009)
0.200(0.008)
0.300(0.012)
4°
R0.100(0.004)
R0.200(0.008)
R0.100(0.004)
4°
0.925(0.036)
0.975(0.038)
0.300(0.012)
0.500(0.020)
5°
15°
0.010(0.0004)
0.150(0.006)
0.650(0.026)
1.050(0.041)
5°
15°
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOT-89
Unit: mm(inch)
4.400(0.173)
4.600(0.181)
1.400(0.055)
1.600(0.063)
1.630(0.064)
1.830(0.072)
0.000(0.000)
0.076(0.003)
1.400(0.055)*
R0.200(0.008)
2.300(0.091)
2.600(0.102)
3°
0.360(0.014)
0.480(0.019)
0.440(0.017)
0.360(0.014)
0.440(0.017)
0.360(0.014)
0.480(0.019)
0.560(0.022)
3.000(0.118)
R0.150(0.006)
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOIC-8
Unit: mm(inch)
4.800(0.189)
0.320(0.013)
1.350(0.053)
1.750(0.069)
5.000(0.197)
0.675(0.027)
0.725(0.029)
D
5.800(0.228)
6.200(0.244)
1.270(0.050)
TYP
D
20:1
φ
0.800(0.031)
0.200(0.008)
0.100(0.004)
0.300(0.012)
0°
8°
1.000(0.039)
3.800(0.150)
4.000(0.157)
1°
5°
0.330(0.013)
0.510(0.020)
0.900(0.035)
6)
00
(0.
50
.1
R0
0.190(0.007)
0.250(0.010)
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 7
19
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BCD Semiconductor Corporation
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Advanced Analog Circuits (Shanghai) Corporation
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Tel: +886-2-2758 6828, Fax: +886-2-2758 6892
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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-
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