AZ431BM-A [DIODES]
Voltage Reference, BIPolar, PDSO8;
| 型号： | AZ431BM-A |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Voltage Reference, BIPolar, PDSO8 光电二极管 |
| 文件： | 总21页 (文件大小：195K) |
| 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
High Stability under Capacitive Load
Low Temperature Deviation: 4.5mV Typical
Low Equivalent Full-range Temperature Coeffi-
·
·
·
o
cient with 20PPM/ C Typical
·
·
·
Sink Current Capacity from 1mA to 100mA
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
o
Wide Operating Range of -40 to 125 C
V
(2.5V) and the corresponding maximum cathode
REF
Applications
voltage.
·
·
·
·
·
Charger
Voltage Adapter
Switching Power Supply
Graphic Card
Precision Voltage Reference
The AZ431 precision reference is offered in two volt-
age tolerance: 0.4% and 0.8%.
These ICs are available in 5 Packages: TO-92, SOT-23-
3L, SOT-23-5L, SOT-89-3L and SOIC-8.
SOIC-8
SOT-89-3L
TO-92
SOT-23-5L
SOT-23-3L
Figure 1. Package Types of AZ431
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
1
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Pin Configuration
N Package
R Package
M Package
(SOIC-8)
(SOT-23-3L)
(SOT-89-3L)
ANODE
CATHODE
ANODE
ANODE
NC
1
8
7
6
5
REF
3
2
3
4
ANODE
ANODE
1
2
3
1
2
NC
CATHODE
REF ANODE
CATHODE
REF
K Package
(SOT-23-5L)
Z Package
(TO-92)
3
2
1
CATHODE
ANODE
NC
NC
1
2
3
5
4
ANODE
REF
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
Aug. 2006 Rev. 2. 0
2
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
Voltage Tolerance
A: 0.4%
B: 0.8%
A: AZ431(40V)
B: AZ431(20V)
Package
M: SOIC-8
Z: TO-92
N: SOT-23-3L K: SOT-23-5L
R: SOT-89-3L
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
SOT-23-
3L
-40 to 125oC
0.8%
N42
EA2
0.4%
K3A
E3A
SOT-23-
5L
-40 to 125oC
0.8%
K3B
E3B
0.4%
0.4%
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%
0.4%
AZ431BZ-ATR
AZ431AM-A
AZ431BZ-ATRE1
AZ431AM-AE1
Ammo
Tube
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
-40 to 125oC
0.8%
SOIC-8
0.8%
0.4%
AZ431BM-ATR
AZ431AR-ATR
AZ431BR-ATR
AZ431AR-ATRE1
AZ431BR-ATRE1
431A
431B
E43A
E43B
Tape & Reel
Tape & Reel
SOT-89-
3L
-40 to 125oC
0.8%
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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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
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
SOT-23-
3L
-40 to 125oC
0.8%
N45
EA5
0.4%
K4A
E4A
SOT-23-
5L
-40 to 125oC
0.8%
K4B
E4B
0.4%
0.4%
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
0.8%
0.4%
AZ431BM-BTR
AZ431AR-BTR
AZ431BR-BTR
AZ431AR-BTRE1
AZ431BR-BTRE1
431C
431D
E43C
E43D
Tape & Reel
Tape & Reel
SOT-89-
3L
-40 to 125oC
0.8%
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
AZ431 (40V): 40
AZ431 (20V): 20
-100 to 150
Unit
VKA
Cathode Voltage
V
IKA
Cathode Current Range (Continuous)
Reference Input Current Range
mA
mA
IREF
10
M, Z, R Package: 770
N, K Package: 370
150
PD
Power Dissipation
mW
oC
oC
TJ
Junction Temperature
TSTG
Storage Temperature Range
-65 to 150
M Package: 150
N Package: 300
Z Package: 150
R Package: 100
K Package: 250
2000
oC/W
θJA
Package Thermal Impedance
ESD (Human Body Model)
V
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
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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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
4.5
8
10
16
VKA=VREF
IKA= 10mA
Deviation of Reference Voltage
Over Full Temperature Range
-40 to 85oC
-40 to 125oC
∆VREF
4
5
mV
∆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
µA
µA
IKA=10mA, R1=10KΩ
R2=∞, TA=-40 to 125oC
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
µA
VKA=36V, VREF=0
Off-state Cathode Current
Dynamic Impedance
0.05
0.15
(Off)
VKA=VREF, IKA=1 to 100mA,
ZKA
Ω
f ≤ 1.0KHz
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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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)
Test
Circuit
Parameter
Symbol
Conditions
Unit
Min
2.490
2.480
Typ
2.500
2.500
4.5
Max
2.510
2.520
8
0.4%
0.8%
VREF VKA=VREF, KA=10mA
I
Reference Voltage
4
V
0 to 70oC
VKA=VREF
IKA= 10mA
Deviation of Reference Voltage
Over Full Temperature Range
-40 to 85oC
-40 to 125oC
∆VREF
4
5
4.5
4.5
10
16
mV
∆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
mV/
V
IKA=10mA
=
-0.5
0.7
-2.0
4
IREF
IKA=10mA, R1=10KΩ, R2=∞
Reference Current
5
5
µA
µA
IKA=10mA, R1=10KΩ, R2=∞
TA=-40 to 125oC
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
µA
VKA=18V, VREF=0
Off-state Cathode Current
Dynamic Impedance
(Off)
VKA=VREF, IKA=1 to 100mA
ZKA
Ω
f ≤ 1.0KHz
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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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
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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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
VKA = VREF
IKA = 10mA
R1=10K,R2=Infinite
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
VKA=VREF
TA=250C
TA=250C
600
100
400
200
0
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. Cathode Current vs. Cathode Voltage
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
2.0
-0.9
AZ431-20V: VKA=3.5V to 18V
AZ431-40V: VKA=3.5V to 36V
1.8
AZ431-20V:VKA=18V
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
AZ431-40V:VKA=36V
VREF=0
-1.0
-1.1
-1.2
-1.3
-1.4
-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
70
Output
AZ431 (20V)
TA=250C
KA=10mA
60
50
40
30
20
10
0
I KA
15K
I
242
10µF
8.2K
-10
1k
GND
10k
100k
1M
Small Signal Frequency (Hz)
Figure 13. Small Signal Voltage Gain vs. Frequency
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
10
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
70
Output
242
AZ431 (40V)
60
TA=250C
I KA
15K
50
IKA=10mA
10µF
40
30
20
10
0
8.2K
-10
1k
10k
100k
1M
GND
Small Signal Frequency (Hz)
Figure 14. Small Signal Voltage Gain vs. Frequency
Output
IKA=10mA
TA=25oC
1K
10
IKA
50
1
GND
0.1
1K
10K
100K
1,000K
Frequency (Hz)
Figure 15. Reference Impedance vs. Frequency
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
20
AZ431 (20V)
VKA=10V:No oscillation
18
150
16
14
12
10
8
VKA=15V:No oscillation
R1 (10K)
IKA
Stable
Stable
6
R2
VKA=VREF
VKA=5V
4
2
0
0.01
0.1
1
10
Load Capacitance (µF)
Figure 16. Stability Boundary Conditions vs. Load Capacitance
100
90
80
70
60
50
40
30
20
10
0
AZ431 (40V)
VKA=VREF
VKA= 5V
VKA=10V
VKA=15V
150
R1 (10K)
IKA
Stable
Stable
R2
0.001
10
0.01
0.1
1
Load Capacitance (µF)
Figure 17. Stability Boundary Conditions vs. Load Capacitance
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
12
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Performance Characteristics (Continued)
5
Input
Output
4
220
3
Pulse
Generator
f=100KHz
50
Output
2
1
0
GND
0
2
4
6
Time (µS)
Figure 18. Pulse Response of Input and Output Voltage
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
13
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Application
R3
VOUT
VIN
R1
V
=(1+R1/R2)*V
REF
OUT
VREF
R2
AZ431
Figure 19. Shunt Regulator
VIN
VOUT
R1
R4
V
=(1+R2/R3)*V
REF
R2
OUT
VREF
R3
AZ431
Figure 20. High Current Shunt Regulator
R2
VIN
IOUT
I
=V /R2 + I
REF KA
OUT
R1
AZ431
Figure 21. Current Source or Current Limit
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Typical Application (Continued)
VIN
AZ1117
Adjust
VOUT
R1
8.2K
5V, 1A
R2
250
AZ431
R3
250
Figure 22. Precision 5V 1A Regulator
R3
R5
R4
C1
R1
VOUT
R2 680
C2
U2
Q1
3
4
COMP
2
AZ431
PWM Controller
VFB
PS521
Figure 23. PWM Converter with Reference
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
15
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)
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOT-23-3L
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
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOT-23-5L
Unit: mm(inch)
2.820(0.111)
3.020(0.119)
0.100(0.004)
0.200(0.008)
0.200(0.008)
0.700(0.028)
REF
0.300(0.012)
0.400(0.016)
0°
8°
0.950(0.037)
TYP
1.800(0.071)
2.000(0.079)
0.000(0.000)
0.100(0.004)
1.050(0.041)
1.150(0.045)
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431
Mechanical Dimensions (Continued)
SOT-89-3L
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)
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
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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)
Aug. 2006 Rev. 2. 0
BCD Semiconductor Manufacturing Limited
20
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cations herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any
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BCD Semiconductor Manufacturing Limited
BCD Semiconductor Manufacturing Limited
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- IC Design Group
Shanghai SIM-BCD Semiconductor Manufacturing Limited
800, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6485 1491, Fax: +86-21-5450 0008
Advanced Analog Circuits (Shanghai) Corporation
8F, Zone B, 900, Yi Shan Road, Shanghai 200233, China
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
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Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd. Shenzhen Office
Advanced Analog Circuits (Shanghai) Corporation Shenzhen Office
27B, Tower C, 2070, Middle Shen Nan Road, Shenzhen 518031, China
Tel: +86-755-8368 3987, Fax: +86-755-8368 3166
BCD Semiconductor (Taiwan) Company Limited
4F, 298-1, Rui Guang Road, Nei-Hu District, Taipei,
Taiwan
BCD Semiconductor Corporation
3170 De La Cruz Blvd., Suite 105, Santa Clara,
CA 95054-2411, U.S.A
Tel: +886-2-2656 2808, Fax: +886-2-2656 2806
Tel: +1-408-988 6388, Fax: +1-408-988 6386
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