AZ431BZ-BTRG1 [BCDSEMI]
ADJUSTABLE PRECISION SHUNT REGULATORS; 可调式精密并联稳压器
| 型号： | AZ431BZ-BTRG1 |
| 厂家： | 
BCD SEMICONDUCTOR MANUFACTURING LIMITED |
| 描述： | ADJUSTABLE PRECISION SHUNT REGULATORS |
| 文件： | 总18页 (文件大小：473K) |
| 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-B
General Description
Features
The AZ431-B is a three-terminal adjustable shunt regu-
lator with guaranteed thermal stability over a full oper-
ation range. It features sharp turn-on characteristics,
low temperature coefficient and low output impedance,
which make it ideal substitute for Zener diode in appli-
cations such as switching power supply, charger and
other adjustable regulators.
·
Programmable Precise Output Voltage from 2.5V
to 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 output voltage of AZ431-B can be set to any value
o
between V
(2.5V) and the corresponding maximum
Wide Operating Range of -40 to 125 C
REF
cathode voltage.
Applications
The AZ431-B precision reference is offered in two
voltage tolerance: 0.4% and 0.8%.
·
·
·
·
·
Charger
Voltage Adapter
Switching Power Supply
Graphic Card
Precision Voltage Reference
This IC is available in 4 packages: TO-92 (bulk or
ammo packing), SOT-23, SOT-23-5 and SOT-89.
SOT-89
TO-92(Bulk Packing)
TO-92(Ammo Packing)
SOT-23-5
SOT-23
Figure 1. Package Types of AZ431-B
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Pin Configuration
K Package
(SOT-23-5)
R Package
(SOT-89)
N Package
(SOT-23)
ANODE
3
NC
ANODE
REF
1
5
4
2
3
*
(Note 1)
2
3
1
CATHODE
1
2
REF ANODE
CATHODE
CATHODE
REF
Note 1: Pin 2 is attached to substrate and
*
must be connected to ANODE or open
Z Package
Z Package
(TO-92(Bulk Packing))
(TO-92(Ammo Packing))
CATHODE
ANODE
REF
3
2
1
CATHODE
ANODE
REF
3
2
1
Figure 2. Pin Configuration of AZ431-B (Top View)
Functional Block Diagram
CATHODE
+
REF
-
VREF
ANODE
Figure 3. Functional Block Diagram of AZ431-B
BCD Semiconductor Manufacturing Limited
Aug. 2011 Rev. 3. 1
2
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Ordering Information
AZ431
-
E1: Lead Free
G1: Green
Circuit Type
Voltage Tolerance
A: 0.4%
B: 0.8%
TR: Tape and Reel or Ammo
Blank: Bulk
B: AZ431-B (20V)
Package
N: SOT-23
R: SOT-89
K: SOT-23-5
Z: TO-92
Part Number
Marking ID
Lead Free Green
Tempera-
ture Range Tolerance
Voltage
Packing
Type
Package
SOT-23
Lead Free
Green
0.4%
AZ431AN-BTRE1 AZ431AN-BTRG1 EA4
AZ431BN-BTRE1 AZ431BN-BTRG1 EA5
AZ431AK-BTRE1 AZ431AK-BTRG1 E4A
GA4
GA5
G4A
G4B
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Bulk
-40 to 125oC
0.8%
0.4%
-40 to 125oC
0.8%
SOT-23-5
AZ431BK-BTRE1 AZ431BK-BTRG1
AZ431AZ-BE1 AZ431AZ-BG1
AZ431AZ-BTRE1 AZ431AZ-BTRG1
AZ431BZ-BE1 AZ431BZ-BG1
E4B
0.4%
0.4%
AZ431AZ-BE1 AZ431AZ-BG1
AZ431AZ-BE1 AZ431AZ-BG1
AZ431BZ-BE1 AZ431BZ-BG1
AZ431BZ-BE1 AZ431BZ-BG1
Ammo
-40 to 125oC
0.8%
TO-92
Bulk
0.8%
0.4%
AZ431BZ-BTRE1 AZ431BZ-BTRG1
AZ431AR-BTRE1 AZ431AR-BTRG1
AZ431BR-BTRE1 AZ431BR-BTRG1
Ammo
E43C
E43D
G43C
G43D
Tape & Reel
Tape & Reel
-40 to 125oC
0.8%
SOT-89
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant. Products with
"G1" suffix are available in green packages.
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Absolute Maximum Ratings (Note 2)
Parameter
Symbol
VKA
Value
20
Unit
V
Cathode Voltage
IKA
Cathode Current Range (Continuous)
Reference Input Current Range
-100 to 150
10
mA
mA
IREF
Z, R Package: 770
N, K Package: 370
150
PD
Power Dissipation
mW
oC
TJ
Junction Temperature
oC
V
TSTG
ESD
Storage Temperature Range
ESD (Human Body Model)
-65 to 150
2000
Note 2: 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
VKA
Min
Max
18
Unit
V
VREF
Cathode Voltage
Cathode Current
IKA
1.0
-40
100
mA
Operating Ambient
Temperature Range
oC
TA
125
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Electrical Characteristics
o
Operating Conditions: T =25 C, unless otherwise specified.
A
Test
Circuit
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
0.4%
0.8%
2.490
2.480
2.500
2.500
4.5
2.510
2.520
8
VREF VKA=VREF, IKA=10mA
Reference Voltage
4
V
0 to 70oC
VKA=VREF
Deviation of Reference Voltage
Over Full Temperature Range
-40 to 85oC
∆VREF
4
5
4.5
4.5
10
16
mV
IKA= 10mA
-40 to 125oC
∆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
0.4
1.2
1.0
IKA
Minimum Cathode Current for
Regulation
VKA=VREF
4
6
4
mA
µA
Ω
(Min)
IKA
VKA=18V, VREF=0
Off-state Cathode Current
Dynamic Impedance
0.05
0.2
1.0
0.5
(Off)
VKA=VREF, IKA=1 to 100mA
ZKA
f ≤ 1.0KHz
SOT-23
SOT-23-5
TO-92
177.65
177.65
107.04
111.03
oC/W
θJC
Thermal Resistance
SOT-89
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
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. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
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. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
7
Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Typical Performance Characteristics (Continued)
2.0
-0.9
1.8
VKA=3.5V to 18V
VKA=18V
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
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
60
50
40
30
20
10
0
Output
TA=250C
I KA
IKA=10mA
15K
242
10µF
8.2K
-10
1k
GND
10k
100k
1M
Small Signal Frequency (Hz)
Figure 13. Small Signal Voltage Gain vs. Frequency
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Typical Performance Characteristics (Continued)
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
20
18
16
14
12
10
8
VKA=10V:No oscillation
VKA=15V:No oscillation
150
R1 (10K)
IKA
Stable
Stable
6
VKA=VREF
VKA=5V
R2
4
2
0
0.01
0.1
1
10
Load Capacitance (µF)
Figure 16. Stability Boundary Conditions vs. Load Capacitance
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
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. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Typical Application
R3
VOUT
VIN
R1
V
=(1+R1/R2)*V
REF
OUT
VREF
R2
AZ431-B
Figure 19. Shunt Regulator
VIN
VOUT
R1
R4
V
=(1+R2/R3)*V
REF
R2
OUT
VREF
R3
AZ431-B
Figure 20. High Current Shunt Regulator
R2
VIN
IOUT
I
=V /R2 + I
REF KA
OUT
R1
AZ431-B
Figure 21. Current Source or Current Limit
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Typical Application (Continued)
VIN
AZ1117
Adjust
VOUT
R1
8.2K
5V, 1A
R2
250
AZ431-B
R3
250
Figure 22. Precision 5V 1A Regulator
R3
R5
R4
C1
R1
VOUT
R2 680
C2
U2
Q1
3
4
COMP
2
AZ431-B
PWM Controller
VFB
PS521
Figure 23. PWM Converter with Reference
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Mechanical Dimensions
TO-92(Bulk Packing)
Unit: mm(inch)
1.000(0.039)
3.430(0.135)
MIN
1.400(0.055)
0.320(0.013)
0.510(0.020)
0.000(0.000)
0.380(0.015)
Φ1.600(0.063)
MAX
4.400(0.173)
4.800(0.189)
0.360(0.014)
0.760(0.030)
1.270(0.050)
TYP
2.420(0.095)
2.660(0.105)
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Mechanical Dimensions (Continued)
TO-92(Ammo Packing)
Unit: mm(inch)
4.400(0.173
)
(
)
4.800 0.189
1.100(0.043
)
1.270(0.050
)
)
3.430(0.135
Typ
)
1.400(0.055
MIN
2.500(0.098
)
0.320(0.013
0.510(0.020)
)
(
)
4.000 0.157
)
0.000(0.000
13.000(0.512
)
0.380(0.015)
(
)
15.000 0.591
Φ1.600(0.063)
MAX
0.
0.
(0.015)
380
)
(0.022
550
)
2.540(0.100
Ty
p
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Mechanical Dimensions (Continued)
SOT-23
Unit: mm(inch)
0.100(0.004) GAUGE PLANE
7.0°
R0.100(0.004)
4×
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. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Mechanical Dimensions (Continued)
SOT-23-5
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)
0.150(0.006)
0.900(0.035)
1.300(0.051)
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
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Data Sheet
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-B
Mechanical Dimensions (Continued)
SOT-89
Unit: mm(inch)
4.400(0.173)
4.600(0.181)
1.550(0.061)REF
1.400(0.055)
1.600(0.063)
1.030(0.041)REF
45
2.300(0.091)
3.950(0.156)
2.060(0.081)REF
2.600(0.102)
4.250(0.167)
3
10
0.900(0.035)
1.100(0.043)
0.350(0.014)
0.450(0.018)
0.320(0.013)
0.320(0.013)
0.520(0.020)
0.520(0.020)
0.480(0.019)
3.000(0.118)
TYP
1.500(0.059)
1.800(0.071)
0.320(0.013)REF
1.620(0.064)REF
3
2.210(0.087)REF
R0.150(0.006)
10
Aug. 2011 Rev. 3. 1
BCD Semiconductor Manufacturing Limited
17
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