AZ432BKTR-E1 [BCDSEMI]
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR; 低电压（ 1.25V ）可调式精密并联稳压器
| 型号： | AZ432BKTR-E1 |
| 厂家： | 
BCD SEMICONDUCTOR MANUFACTURING LIMITED |
| 描述： | LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR |
| 文件： | 总17页 (文件大小：175K) |
| 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-
·
·
·
o
cient: 20PPM/ C Typical
·
·
Low Dynamic Output Resistance: 0.05Ω Typical
High Sink Current Capacity from 0.1mA to 100
mA
The output voltage can be set to any value between
1.25V and 18V with two external resistors.
·
·
Low Output Noise
o
Wide Operating Range of -40 to 125 C
The AZ432 precision reference is offered in two volt-
age tolerance: 0.5% and 1.0%.
Applications
These ICs are available in 4 packages: TO-92 (bulk or
ammo packing), SOT-23, SOT-23-5, SOT-89-3.
·
·
·
·
·
Graphic Card
PC Motherboard
Voltage Adapter
Switching Power Supply
Charger
SOT-89-3
TO-92 Ammo Packing
TO-92
SOT-23
SOT-23-5
Figure 1. Package Types of AZ432
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
1
Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Pin Configuration
Z Package
N Package
(SOT-23)
Z Package
(TO-92)
(TO-92 Ammo Packing)
ANODE
3
2
1
CATHODE
ANODE
REF
3
2
1
CATHODE
ANODE
REF
3
1
2
REF
CATHODE
R Package
(SOT-89-3)
K Package
(SOT-23-5)
NC
1
2
3
5
4
ANODE
REF
NC
1
2
3
CATHODE
REF ANODE CATHODE
Figure 2. Pin Configuration of AZ432 (Top View)
Functional Block Diagram
CATHODE
+
REF
-
VREF
ANODE
Figure 3. Functional Block Diagram of AZ432
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Ordering Information
AZ432
-
E1: Lead Free
Blank: Tin Lead
Circuit Type
TR: Tape and Reel or Ammo
Blank: Tube or Bulk
Package
Z: TO-92
N: SOT-23
K: SOT-23-5
R: SOT-89-3
Bandage Tolerance
A: 0.5%
B: 1.0%
Part Number
Marking ID
Tin Lead Lead Free
AZ432AZ
Tempera-
ture Range Tolerance
Voltage
Packing
Type
Package
Tin Lead
AZ432AZ
Lead Free
AZ432AZ-E1
0.5%
0.5%
AZ432AZ-E1
AZ432AZ-E1
AZ432BZ-E1
AZ432BZ-E1
EA8
Bulk
AZ432AZTR
AZ432BZ
AZ432AZTR-E1
AZ432BZ-E1
AZ432AZ
AZ432BZ
AZ432BZ
Ammo
-40 to 125oC
1.0%
TO-92
Bulk
1.0%
0.5%
AZ432BZTR
AZ432BZTR-E1
AZ432ANTR-E1
AZ432BNTR-E1
AZ432AKTR-E1
AZ432BKTR-E1
AZ432ARTR-E1
AZ432BRTR-E1
Ammo
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
-40 to 125oC
1.0%
SOT-23
SOT-23-5
SOT-89-3
EA9
0.5%
AZ432AKTR
AZ432BKTR
AZ432ARTR
AZ432BRTR
K43
E7A
-40 to 125oC
1.0%
K44
E8A
0.5%
R42A
R42B
E42A
-40 to 125oC
1.0%
E42B
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
VKA
Value
20
Unit
V
Cathode Voltage
IKA
Cathode Current Range (Continuous)
Reference Input Current Range
-100 to 100
10
mA
mA
IREF
Z, R Package
N, K Package
150
-65 to 150
770
370
PD
Power Dissipation
mW
oC
oC
TJ
Junction Temperature
TSTG
Storage Temperature Range
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 Operation Ratings
Parameter
Symbol
VKA
Min
Max
18
Unit
V
VREF
Cathode Voltage
IKA
Cathode Current
0.1
-40
100
125
mA
oC
Operating Ambient Temperature Range
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Electrical Characteristics
o
(Typical and limits apply for T =25 C, unless otherwise noted.)
A
Test
Circuit
Parameter
Symbol
VREF VKA=VREF, IKA=10mA
0 to 70oC
Conditions
Min
Typ
Max
Unit
0.5%
1.0%
1.244 1.250 1.256
1.238 1.250 1.262
Reference Voltage
4
V
2
3
4
10
10
15
VKA=VREF
Deviation of Reference Voltage
Over Full Temperature Range
-40 to 85oC
∆VREF
4
mV
IKA=10mA
-40 to 125oC
∆VREF IKA=10mA,
∆VKA ∆VKA: VREF to 16V
Ratio of Change in VREF to the
Change in Cathode Voltage
5
5
5
-0.5
0.15
0.1
-1.5
0.4
0.4
mV/V
µA
IREF
IKA=10mA, R1=10KΩ, R2=∞
Reference Input Current
IKA=10mA, R1=10KΩ, R2=∞
TA=-40 to 125oC
Deviation of Reference Current
Over Full Temperature Range
∆IREF
µA
IKA
Minimum Cathode Current for
Regulation
VKA=VREF
4
6
4
55
80
µA
µA
Ω
(MIN)
VREF=0, VKA=18V
0.04
0.01
0.10
0.05
IKA
Off-state Cathode
Current
(OFF)
VKA=6V, VREF=0
VKA=VREF, IKA=1 to 100mA
ZKA
Dynamic Impedance
0.05
0.15
f≤1.0kHz
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
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
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Typical Performance Characteristics
1.253
0.18
R1=10KΩ
R2=Infinite
IKA=10mA
VKA=VREF
1.252
1.251
1.250
1.249
1.248
1.247
0.17
0.16
0.15
0.14
0.13
0.12
IKA=10mA
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
125
150
Ambient Temperature (oC)
Ambient Temperature (oC)
Figure 8. Reference Current vs. Ambient Temperature
Figure 7. Reference Voltage vs. Ambient Temperature
400
150
VKA=VREF
TA=25oC
300
VKA=VREF
TA=25oC
100
200
50
0
100
0
-100
-200
-300
-50
-100
-150
-1.0
-0.5
0.0
0.5
1.0
1.5
-1
0
1
Cathode Voltage (V)
Cathode Voltage (V)
Figure 9. Cathode Current vs. Cathode Voltage
Figure 10. Cathode Current vs. Cathode Voltage
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Typical Performance Characteristics (Continued)
Output
360
70
TA=250C
I KA
6.8K
60
50
40
30
20
10
0
IKA=10mA
10µF
4.3K
-10
1k
10k
100k
GND
Small Signal Frequency (Hz)
Figure 11. Small Signal Voltage Gain vs. Frequency
10
Output
100Ω
IKA
1
50Ω
0.1
GND
0.01
1k
10k
100k
1M
Frequency (Hz)
Figure 12. Dynamic Impedance vs. Frequency
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Typical Performance Characteristics (Continued)
3
Input
Output
R1
1.8KΩ
2
Pulse
Generator
f=100KHz
R2
50Ω
1
Output
GND
0
-1
0
1
2
3
4
5
6
Time (µS)
Figure 13. Pulse Response of Input and Output Voltage
-0.3
IKA=10mA
∆VKA=VREF to 16V
-0.4
-0.5
-40
0
40
80
120
Ambient Temperature (oC)
Figure 14. Ratio of Delta Reference Voltage to the Ratio of Delta
Cathode Voltage vs. Ambient Temperature
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Typical ApplicationS
R3
VOUT
VIN
R1
VOUT=(1+R1/R2)*VREF
VREF
R2
AZ432
Figure 15. Shunt Regulator
VIN
VOUT
R1
R4
R2
VOUT=(1+R2/R3)*VREF
VREF
AZ432
R3
Figure 16. High Current Shunt Regulator
R2
VIN
IOUT
R1
IOUT=VREF/R2+IKA
AZ432
Figure17. Current Source or Current Limit
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Typical Application (Continued)
V
AZ1117
2.5V/1A
IN
R1
8.2K
R2
250
AZ432
R3
250
Figure18. Precision 2.5V/1A Regulator
R3
R4
C1
R1
VOUT
R2 680
R5
C2
U2
Q1
3
4
COMP
2
AZ432
PWM Controller
VFB
PS521
Figure 19. PWM Converter with Reference
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
11
Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
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)
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Mechanical Dimensions (Continued)
TO-92 Ammo Packing
Unit: mm(inch)
12.400(0.488)
13.000(0.512)
±1.000(0.039)
±1.000(0.039)
4.400(0.173)
4.600(0.181)
Δh
ΔP
3.400(0.134)
3.600(0.142)
4.400(0.173)
4.600(0.181)
19.000(0.748)
21.000(0.827)
0.380(0.015)
0.550(0.022)
2.200(0.087)
2.800(0.110)
2.200(0.087)
2.800(0.110)
1.000 (0.039) MAX
15.500(0.610)
16.500(0.650)
5.500(0.217)
6.500(0.256)
6.050(0.238)
6.650(0.262)
8.500(0.335)
9.500(0.374)
2.500(0.098)
MIN
3.550(0.140)
4.150(0.163)
3.800(0.150)
4.200(0.165)
12.500(0.492)
12.900(0.508)
17.500(0.689)
19.000(0.748)
0.150(0.006)
0.250(0.010)
0.350(0.014)
0.450(0.018)
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
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Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Mechanical Dimensions (Continued)
SOT-23
Unit: mm(inch)
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
14
Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
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)
0.100(0.004)
1.050(0.041)
1.150(0.045)
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
15
Data Sheet
LOW VOLTAGE (1.25V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ432
Mechanical Dimensions (Continued)
SOT-89-3
Unit: mm(inch)
4.400(0.173)
1.400(0.055)
1.600(0.063)
4.600(0.181)
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)
0.520(0.020)
0.560(0.022)
3.000(0.118)
R0.150(0.006)
Mar. 2007 Rev. 1. 6
BCD Semiconductor Manufacturing Limited
16
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cations 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 Limited does not convey any license under its patent rights or
other rights nor the rights of others.
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