AP431AYLA [ANACHIP]
Adjustable Precision Shunt Regulator; 可调式精密并联稳压器
| 型号： | AP431AYLA |
| 厂家： | 
ANACHIP CORP |
| 描述： | Adjustable Precision Shunt Regulator |
| 文件： | 总17页 (文件大小：323K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP431/AP431A
Adjustable Precision Shunt Regulator
Features
Description
• Precision reference voltage
AP431 : 2.495V ± 1%
The AP431/AP431A are 3-terminal adjustable
precision shunt regulators with guaranteed
temperature stability over the applicable extended
commercial temperature range. The output voltage
AP431A : 2.495V ± 0.5%
• Sink current capability: 200mA
• Minimum cathode current for regulation: 300μA
• Equivalent full-range temp coefficient: 30 ppm/oC
• Fast turn-on response
may be set at any level greater than 2.495V(VREF
)
up to 36V merely by selecting two external resistors
that act as a voltage divider network. These devices
have a typical output impedance of 0.2Ω. Active
output circuitry provides very sharp turn-on
characteristics, making these devices excellent
improved replacements for Zener diodes in many
applications.
• Low dynamic output impedance: 0.2Ω
• Programmable output voltage to 36v
• Low output noise.
• Packages: TO92, SOT89, SOT23, SOT25 and
SOP
The precise (+/-) 1% Reference voltage tolerance of
the AP431/431A make it possible in many
applications to avoid the use of a variable resistor,
consequently saving cost and eliminating drift and
reliability problems associated with it.
Ordering Information
A P 4 3 1 X X X X X
Operating Temp. Range
Blank : -20oC~85oC
Reference Voltage
Package
Lead Free
Packing
Blank : Normal
Tolerance:
Blank : SOP-8L
Blank : Tube or bulk
I
: -40oC~85oC
Blank : +/- 1%
Y
: SOT89-3L
: TO92-3L
: SOT23-3L
: SOT23-3L
: SOT25
L : Lead Free Package
A
: Taping
A
: +/- 0.5%
V
W
R
Q
Typical Application Circuit
VIN
VOUT
+
+
R1
R2
Cin
Cout
AP431
VOUT = (1+R1/R2)VREF
Precision Regulator
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev.1.0 May.7, 2004
1/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Block Diagram
Symbol
Cathode (C)
REF (R)
+
-
REF (R)
VREF
Anode (A)
Anode (A)
Pin Configuration
Pin Configuration (Top View)
Order Number
Order Number
Pin Configuration (Top View)
AP431Y
AP431AY
AP431IY
AP431IAY
(SOT89)
3
2
1
Cathode
Anode
REF
AP431R
3
2
Cathode
AP431AR
AP431IR
AP431IAR
(SOT23)
Anode
1
REF
+
+
+
AP431V
AP431AV
AP431IV
AP431IAV
(TO92)
AP431W
AP431AW
AP431IW
AP431IAW
(SOT23)
3
2
1
Cathode
Anode
REF
3
REF
Anode
1
2
Cathode
Cathode
Anode
Anode
NC
1
2
3
4
8
7
6
5
REF
AP431Q
NC
1
AP431
AP431A
AP431I
AP431IA
(SOP)
AP431
AQ
5
4
Anode
REF
Anode
Anode
NC
AP431IQ
AP431IAQ
(SOT25)
NC
2
3
Cathode
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
2/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Marking Information
(1)SOT23 / SOT25 / SOT89
P/N Type
AP431Y
X X
A 4
A 5
A A
A B
A 6
A 7
A C
A D
A 8
A 9
A E
A F
A 2
A 3
A G
A H
AP431AY
AP431IY
AP431IAY
AP431W
AP431AW
AP431IW
AP431IAW
AP431R
(Top View)
SOT89
SOT23/SOT25
XX
YMX
XX YM X
XX: P/N Type
Date code
Y : Year
M : Month(A~L)
AP431AR
AP431IR
AP431IAR
AP431Q
AP431AQ
AP431IQ
AP431IAQ
X: Blank : normal
L : Lead Free Package
(2) SOP
( Top view )
Temp. grade
AC
Logo
AP431X X
YYWW X
Blank: -20oC ~ +85oC
Date code
YY : Year
WW: Nth week
I
: -40oC ~ +85oC
Accuracy
Lead Free
2.495 ± 1%
Blank:
Blank: normal
2.495 ± 0.5%
:
A
L: Lead Free Package
(3)TO92
( Top view )
Temp. grade
Accuracy
Blank: -20oC ~ +85oC
AP431X
I
: -40oC ~ +85oC
Blank:2.495 ±1%
X YWW X X
2.495 ± 0.5%
:
A
Date code
: Year
WW: Nth week
Internal code
Lead Free
Blank: normal
L: Lead Free Package
Y
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
3/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Absolute Maximum Ratings
Cathode Voltage ………………………………......…..............................……………………………...……….36V
Continuous Cathode Current ………………………….……...............................…………….... -10mA ~ 250mA
Reference Input Current Range ……………..………..............……..............................………….…....... 10mA
Operating Temperature Range (AP431)…………..…….…….....………………...........………......-20oC ~ 85oC
(AP431I).……………….….............………………………...…….. -40oC ~ 85oC
Lead Temperature………………………….………….…….…………....…………………….........…............ 260oC
Storage Temperature ……………………………......…....….............………………..……............ -65oC ~ 150oC
Power Dissipation (Notes 1. 2)
SOT89 Package .…………......……………………….............….... 0. 80W
TO92 Package ….…………..………………………....……….....… 0.78W
SOT23 package .……………..…………….......………………….…. 0.25W
SOT25 Package……………….……...…………….…………………..0.25W
SOP Package………………..………………………………..……… 0.6W
Note 1: TJ, max =150oC
Note 2: Ratings apply to ambient temperature at 25oC
Electrical Characteristics (Ta=25oC , unless otherwise specified.)
PARAMETER
Reference voltage
TEST CONDITIONS
SYMBOL MIN. TYP. MAX. UNIT
V
KA = VREF,
AP431
2.470 2.495 2.520
VREF
V
I
KA = 10mA (Fig.1)
AP431A
2.482
2.507
20
Deviation of Reference input voltage VKA = VREF, IKA = 10mA,
VREF
8.0
mV
over temperature (Note 3)
Ratio of the change in Reference
voltage to the change in Cathode
voltage
Ta = Full range (Fig.1)
VKA = 10V
KA = 10mA (Fig.2) ~VREF
∆VREF
∆VKA
IREF
-1.4 -2.0 mV/V
-1 -2 mV/V
I
VKA= 36V ~10V
R1 = 10KΩ,R2 = ∞ IKA= 10mA
Reference input current
1.4 3.5
µA
(Fig.2)
Deviation of Reference input current R1 = 10KΩ,R2 = ∞ IKA = 10mA
αIREF
0.4 1.2
µA
over temperature
Minimum Cathode current for
regulation
Ta = Full range (Fig.2)
KA = VREF (Fig.1)
V
IKA(MIN)
IKA(OFF)
0.19 0.5 mA
Off-state current
VKA = 36V, VREF = 0V (Fig.3)
V KA = VREF V KA = VREF
0.1 1.0
µA
ZKA
Dynamic output impedance (Note 4) ∆IKA = 0.1mA ~ 15mA
Frequency≤ 1KHz (Fig.1)
0.2 0.5
Ω
VMAX
VDEV = VMAX - VMIN
VMIN
TI
T2
TEMPERATURE
4/17
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
AP431/AP431A
Adjustable Precision Shunt Regulator
Note 3. Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference over
the full temperature range.
The average temperature coefficient of the reference input voltage αVREF is defined as:
VDEV
VREF (25°C)
T2 − T1
(
)⋅106
ppm
……………………..……………….. (
)
α VREF
=
°C
Where:
T2 – T1 = full temperature change.
αVREF can be positive or negative depending on whether the slope is positive or negative.
Note 4. The dynamic output impedance, RZ, is defined as:
∆VKA
∆IKA
ZKA
=
When the device is programmed with two external resistors R1 and R2 (see Figure 2.), the dynamic output
impedance of the overall circuit, is defined as:
∆v
∆i
R1
R2
'
ZKA
=
≈ZKA (1+
)
Test Circuits
Input
IN
IN
VKA
IKA
VKA
IKA
VKA
R1
R2
I
REF
VREF
I
Z(OFF)
V
REF
Note:VKA=VREF(1+R1/R2)+IREF× R1
Fig1. Test Circuit for VKA= VREF
Fig2. Test circuit for VKA＞VREF
Fig3. Test Circuit for off-state Current
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
5/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Typical Performance Characteristics
Cathode current Vs Cathode Voltage
Cathode current (uA) Vs Cathode Voltage
100
600
VKA=Vref
Ta=25oC
VKA=Vref
Ta=25oC
400
200
0
0
-100
-200
-1.5
-0.5
0.5
Cathode Voltage(v)
1.5
2.5
-1
-0.5
0
0.5
1
1.5
2
2.5
Cathode Voltage(v)
Reference Voltage Vs Free-Air Temperature
Reference input current Vs free Temperature
2
2500
R1=10K
1.8
IKA=10mA
2495
2490
2485
2480
1.6
1.4
1.2
1
-40 -30 -20 -10
0 10 20 30 40 50 60 70 80
-50
-25
0
25
50
75
100
125
Free-Air Temperature(oC)
Free-Air Tempeture (oC)
Change in Reference Voltage vs Cathode Voltage
0
-2
IKA=10mA
Ta=25oC
-4
-6
-8
-10
-12
0
5
10
15
20
25
30
Cathode Voltage (V)
Anachip Corp.
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Rev.1.0 May.7, 2004
6/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Typical Performance Characteristics(Continued)
SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY
60
IKA=10mA
Output
232Ω
TA=25oC
IKA
50
15KΩ
40
30
20
10
0
9µF
-
+
-
8.25KΩ
GND
TEST CIRCUIT FOR VOLTAGE AMPLIFICATION
10K
1K
100K
1M
10M
f-Frequency-Hz
REFERENCE IMPEDANCE vs. FREQUENCY
100
10
1
IKA=10mA
TA=25oC
1KΩ
Output
I
KA
50Ω
-
+
GND
TEST CIRCUIT FOR REFERENCE IMPEDANCE
0.1
1K
10K
100K
1M
10M
f-Frequency-Hz
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
7/17
AP431/AP431A
Adjustable Precision Shunt Regulator
PULSE RESPONSE
6
TA=25oC
Input
5
4
220Ω
Output
Pulse
50Ω
Generator
f=100kHz
3
Output
GND
2
1
0
TEST CIRCUIT FOR PULSE RESPONSE
-1
0
1
2
3
4
5
6
7
t-Time-µ S
STABILITY BOUNDARY CONDITIONS†
A VKA=Vref
150Ω
100
TA=25oC
I
90
80
70
60
50
40
30
20
10
0
KA
B VKA=5V
+
C VKA=10V
D VKA=15V
VBATT
CL
-
B
Stable
C
Stable
TEST CIRCUIT FOR CURVE A
A
D
I
KA
150Ω
R1=10KΩ
CL
+
-
R2
VBATT
0.001
0.01
0.1
1
10
CL-Load Capacitance-µF
The areas under the curves represent conditions that may cause the
device to oscillate. For curves B, C, and D, R2 and V+ were adjusted
to establish the initial VKA and IKA conditions with CL=0.VBATT and
CL were then adjusted to determine the ranges of stability.
TEST CIRCUIT FOR CURVE B, C, AND D
Anachip Corp.
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Rev.1.0 May.7, 2004
8/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Application Examples
VIN
VIN
I
OUT
RCL
R
VIN
R1B
R2B
R1A
R2A
+
ON
OFF
VIN
Delay =
)
RC x ln(
IOUT = VREF / RCL
LED on when Low Limit VIN High Limit
V
＜
＜
IN -VREF
≈
Low Limit VREF (1+R1B/R2B)
≈
High Limit VREF (1+R1A/R2A)
Fig.5 Delay Timer
Fig.4 Voltage Monitor
Fig.6 Current Limiter or Current Source
VIN
IOUT
VIN
VOUT
VIN
VOUT
PUSE
R1
R1
R2
R2
V
RS
L
IMIT
(1 + R1/R2) x VREF
OUT
= (1 + R1/R2) x VREF
I
OUT = VREF / RS
Fig.7 Constant-Current Sink
Fig.8 Higher-Current Shunt Regulator
Fig.9 Crow Bar
VIN
R1A
R2A
R1B
Output ON when
Low Limint < VIN< High Limit
+
VBE
R2B
Low Limit
High Limit
V
REF(1 + R1B/R2B) +VBE
V
REF(1 + R1A/R2A)
Fig.10 Over-Voltage / Under-Voltage Protection Circuit
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
9/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Package Diagrams
(1) SOT89-3L Package Outline Dimension
D1
e1
e
50(2x)
80(2x)
D
c
b
b
b1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
1.40
0.36
0.41
0.35
4.40
1.40
2.90
1.45
2.40
3.94
0.80
Nom.
1.50
0.42
0.47
0.39
4.50
1.60
3.00
1.50
2.50
-
Max.
1.60
0.48
0.53
0.43
4.60
1.75
3.10
1.55
2.60
4.25
1.20
Min.
Nom.
0.059
0.016
0.043
0.015
0.177
0.062
0.118
0.059
0.098
-
Max.
0.063
0.018
0.051
0.017
0.181
0.069
0.122
0.061
0.102
0.167
0.047
A
b
b1
C
D
D1
e
e1
E
HE
L
0.055
0.014
0.016
0.014
0.173
0.055
0.114
0.057
0.094
0.155
0.031
-
-
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
10/17
AP431/AP431A
Adjustable Precision Shunt Regulator
(2) TO92-3L Package Outline Dimension
A
1
A
b
e
b
1
D
E
L
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
3.302
1.016
0.330
0.406
4.445
4.445
13.00
1.150
Nom.
3.556
-
0.381
0.457
4.572
4.572
-
Max.
3.810
-
0.432
0.506
4.699
4.699
15.500
1.390
Min.
Nom.
0.140
-
Max.
0.150
-
A
A1
b
b1
D
E
0.130
0.040
0.013
0.016
0.175
0.175
0.512
0.045
0.015
0.018
0.180
0.180
-
0.017
0.020
0.185
0.185
0.610
0.055
L
e
1.270
0.050
Anachip Corp.
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Rev.1.0 May.7, 2004
11/17
AP431/AP431A
Adjustable Precision Shunt Regulator
(3) SOT23-5L Package Outline Dimension
D
e1
1(4x)
θ
4
5
1
C
0.10
A2
A
5x
E1
E
Seating Plane
A1
2(4x)
θ
2
3
b
e
With
Plating
b1
C
C1
Gauge Plane
0.25 mm
θ
Base
Metal
L
b
L1
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
1.05
0.05
1.00
0.25
0.25
0.08
0.08
2.70
2.60
1.50
0.35
Nom.
1.20
0.10
1.10
-
Max.
1.35
0.15
1.20
0.55
0.45
0.20
0.15
3.00
3.00
1.70
0.55
Min.
Nom.
0.047
0.004
0.043
-
Max.
A
A1
A2
b
b1
c
c1
D
E
E1
L
L1
e
e1
θ
θ1
θ2
0.041
0.002
0.039
0.010
0.010
0.003
0.003
0.106
0.102
0.059
0.014
0.053
0.006
0.047
0.022
0.018
0.008
0.006
0.118
0.118
0.067
0.022
0.40
-
0.016
-
0.11
2.85
2.80
1.60
0.45
0.60 Ref.
0.95 Bsc.
1.90 Bsc.
5o
0.004
0.112
0.110
0.063
0.018
0.024 Ref.
0.037 Bsc.
0.075 Bsc.
5o
0o
3o
6o
10o
7o
0o
3o
6o
10o
7o
5o
5o
8o
10o
8o
10o
Anachip Corp.
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Rev.1.0 May.7, 2004
12/17
AP431/AP431A
Adjustable Precision Shunt Regulator
(4) SOT23-3L Package Outline Dimension
2
1
3
e
D
L
b
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
Nom.
1.20
Max.
Min.
Nom.
0.047
Max.
A
A1
A2
b
1.00
0.00
1.00
0.35
0.10
2.70
1.40
1.70
2.40
0.30
1.40
0.10
1.30
0.50
0.25
3.10
1.80
2.30
3.00
0.55
0.039
0.000
0.039
0.014
0.004
0.106
0.055
0.067
0.094
0.012
0.055
0.004
0.051
0.020
0.010
0.122
0.071
0.091
0.118
0.022
-
-
1.15
-
0.045
-
C
0.175
2.90
1.60
2.00
2.70
-
0.007
0.114
0.063
0.079
0.106
-
D
E
e
HE
L
Anachip Corp.
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Rev.1.0 May.7, 2004
13/17
AP431/AP431A
Adjustable Precision Shunt Regulator
(5) SOP-8L Package Outline Dimension
L
VIEW "A"
D
0.015x45
VIEW "A"
7 (4X)
7 (4X)
e
B
y
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
1.40
0.10
1.30
0.33
0.19
4.80
3.70
-
Nom.
1.60
-
Max.
1.75
0.25
1.50
0.51
0.25
5.30
4.10
-
6.20
1.27
0.10
8O
Min.
Nom.
0.063
-
Max.
A
A1
A2
B
0.055
0.040
0.051
0.013
0.0075
0.189
0.146
-
0.069
0.100
0.059
0.020
0.010
0.209
0.161
-
0.244
0.050
0.004
8O
1.45
0.41
0.20
5.05
3.90
1.27
5.99
0.71
-
0.057
0.016
0.008
0.199
0.154
0.050
0.236
0.028
-
C
D
E
e
H
L
5.79
0.38
-
0.228
0.015
-
y
0O
-
0O
-
θ
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
14/17
AP431/AP431A
Adjustable Precision Shunt Regulator
Taping Information
(1)TO92 TAPING
M
Ho
∆h
A
T
Po
F2 F1
Do
Millimeters
Typ.
12.7
2.5
Inches
Typ.
Symbol
Min.
12.4
2.0
15.5
-
Max.
13.0
3.0
16.5
-
Min.
0.488
0.079
0.610
-
Max.
0.512
0.118
0.650
-
Po
M
Ho
Do
A
Δh
T
F1
F2
0.500
0.098
0.630
0.157
0.236
-
16.0
4.0
-
6.0
-
-
-
-
0.0
-
2.4
2.4
1.0
-
2.9
2.9
0.000
-
0.094
0.094
0.039
-
0.114
0.114
18.0
2.5
0.709
0.098
0.098
2.5
40mm
205mm
330mm
90 ±1mm
30 ±1mm
45mm
53 ±2mm
76 ±1mm
360 ±2mm
Anachip Corp.
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Rev.1.0 May.7, 2004
15/17
AP431/AP431A
Adjustable Precision Shunt Regulator
(2)TO92 TAPING
H2
H2
H2A H2A
D2
A
H3
H4
H
L
L1
W1
H1
W
D
T2
T
F1
F2
P1
P
T1
D1
P2
Millimeters
Inches
Typ.
0.299
0.157
0.018
-
Symbol
Min.
Typ.
Max.
12
4.2
0.53
9.0
2.7
-
Min.
0.125
0.150
0.014
-
Max.
0.472
0.165
0.021
0.354
0.106
-
0.650
0.374
0.020
0.020
1.063
0.787
0.433
-
0.508
0.266
2.020
0.022
0.056
0.027
0.748
0.276
10.039
A
D
D1
D2
F1,F2
F1-F2
H
3.18
3.8
0.36
-
7.59
4
0.445
-
2.4
-
2.5
0.094
-
0.098
±0.012
0.630
0.354
-
0.30
15.5
8.5
-
16
16.5
9.5
0.5
0.5
27
0.610
0.335
-
H1
H2
H2A
H3
H4
L
9
-
-
-
-
-
-
-
-
-
-
-
-
20
-
-
-
11
-
-
L1
2.5
12.5
5.95
50.3
-
-
-
0.098
0.492
0.234
1.980
-
-
P
12.7
6.35
50.8
-
12.9
6.75
51.3
0.55
1.42
0.68
19
0.500
0.250
2.000
-
P1
P2
T
T1
-
-
-
-
T2
0.36
17.5
5
0.52
18.25
6
0.014
0.689
0.197
9.961
0.020
0.719
0.236
10.000
W
W1
----*
7
255
253
254
----* = every 20 pcs distance.
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
16/17
AP431/AP431A
Adjustable Precision Shunt Regulator
BOX Dimension
39.5
811.5
330
41
330
37.5
43
6
24
18.18
16.67
unit:mm.
Anachip Corp.
www.anachip.com.tw
Rev.1.0 May.7, 2004
17/17
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