AP432ASNF-7 [DIODES]
Three Terminal Voltage Reference, 1 Output, 1.24V, Trim/Adjustable, BIPolar, PDSO3, LEAD FREE, SC-59, 3 PIN;
| 型号： | AP432ASNF-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Three Terminal Voltage Reference, 1 Output, 1.24V, Trim/Adjustable, BIPolar, PDSO3, LEAD FREE, SC-59, 3 PIN 光电二极管 |
| 文件： | 总12页 (文件大小：298K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Description
Features
The AP432 and AP432A are 3-terminal adjustable precision
shunt regulators with guaranteed temperature stability over the
applicable extended commercial temperature range. The output
voltage 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.
•
Precision reference voltage
AP432 : 1.24V ± 1%
AP432A : 1.24V ± 0.5%
•
Sink current capability: 200mA with PowerDITM5
package
•
•
•
•
•
•
•
Minimum cathode current for regulation: 300µA
Equivalent full-range temp coefficient: 30 ppm/oC
Fast turn-on response
Low dynamic output impedance: 0.2Ω
Programmable output voltage to 20V
Low output noise
The precise (+/-) 1% Reference voltage tolerance of the
AP432/AP432A 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.
Packages: SOT-23. SC-59, PowerDITM5 and DFN under
development
Ordering Information
A P 4 3 2 A X X X
Packing
Reference Voltage
Package
Lead-Free
SA
SN
PB
FB
: SOT23
: SC-59
: PowerDI™5
: DFN
Tolerance:
Blank : +/- 1%
F : Lead-Free
G : Green
Blank : Tube or bulk
-7/-13 : Taping
A
: +/- 0.5%
7” Tape and Reel
13” Tape and Reel
Device
(Note 1)
Package
Code
Quantity
Part
Number
Quantity
Part
Number
Packaging
Suffix
Suffix
AP432(A)SA
AP432(A)SN
AP432(A)PB
AP432(A)FB
SA
SN
PB
FB
SOT-23
SC-59
PowerDI™5
DFN
3000/Tape & Reel
3000/Tape & Reel
NA
-7
-7
10,000/Tape & Reel
10,000/Tape & Reel
5000/Tape & Reel
10,000/Tape & Reel
-13
-13
-13
-13
NA
-7
3000/Tape & Reel
Typical Application Circuit
VIN
VOUT
+
+
R1
R2
Cin
Cout
DP432
VOUT = (1+R1/R2)VREF
Precision Regulator
Notes: 1. Suffix “A” denotes AP432A device.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
DS30748 Rev. 1 - 2
1 of 12
AP432/AP432A
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© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Block Diagram
Symbol
Cathode (C)
REF (R)
+
-
REF (R)
VREF
Anode (A)
Anode (A)
Pin Configuration
Pin Configuration (Top View)
Package
DFN
Pin Configuration (Top View)
Package
3
CATHODE
3 CATHODE
SOT23
ANODE
1
ANODE 1
2 REF
2
REF
3
2
CATHODE
REF
3 CATHODE
2 REF
SC-59
ANODE
1
ANODE 1
PowerDI™5
DS30748 Rev. 1 - 2
2 of 12
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AP432/AP432A
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Absolute Maximum Ratings
Cathode Voltage ……………………………......…..............................……………...…...............……………………..…..…...……….20V
Continuous Cathode Current ………………………….……...............................…………...........………………….…... -10mA ~ 250mA
Reference Input Current Range ……………..………..............……...............................……............…………..………….…........ 10mA
Operating Temperature Range (AP432)…………..…….…….....………………...........…............………………….….…....-20°C ~ 85°C
Lead Temperature………………………….……..….…….…………....…………………….....................……………..……............. 260°C
Storage Temperature ……………………………......…....…..........………………..…..........….…..…………………......... -65°C ~ 150°C
Power Dissipation (Notes 3, 4)
SOT-23 Package…………………..…………………………….………...…………. 300mW
SC-59 Package................................................................………........................ 400mW
PowerDI™5 Package ….…………..………................….....………...................… 900mW
DFN Package....................................................................……………………..... 250mW
Note 3. TJ, max =150°C
Note 4. Ratings apply to ambient temperature at 25°C
Electrical Characteristics (TA=25oC, V+=+5.0V, unless otherwise stated) (Note 5)
PARAMETER
TEST CONDITIONS
SYMBOL MIN. TYP. MAX. UNIT
VKA = VREF
I KA = 10mA (Fig.1)
,
AP432
AP432A
1.227 1.240 1.252
1.233 1.240 1.246
Reference voltage
VREF
V
Deviation of Reference input voltage over
temperature (Note 5)
VKA = VREF, IKA = 10mA,
Ta = Full range (Fig.1)
VREF
3.0
20
mV
⎯
Ratio of the change in Reference voltage to
the change in Cathode voltage
Reference input current
Deviation of Reference input current over
temperature
IKA = 10mA (Fig.2)
VKA = 20V ~VREF
∆VREF
IREF
-1.4
1.4
0.4
2.0
3.5
1.2
mV/V
µA
⎯
⎯
⎯
R1 = 10KΩ,R2 = ∞ IKA= 10mA (Fig.2)
R1 = 10KΩ,R2 = ∞ IKA = 10mA
Ta = Full range (Fig.2)
αIREF
µA
Minimum Cathode current for regulation
Off-state current
VKA = VREF (Fig.1)
VKA = 20V, VREF = 0V (Fig.3)
V KA = VREF V KA = VREF
Frequency ≤ 1KHz (Fig.1)
IKA(MIN)
IKA(OFF)
0.15
0.1
0.3
1.0
mA
µA
⎯
⎯
ZKA
Dynamic output impedance
0.2
0.5
Ω
⎯
VMAX
VDEV = VMAX - VMIN
VMIN
TI
T2
TEMPERATURE
DS30748 Rev. 1 - 2
3 of 12
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AP432/AP432A
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Note 5. 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
(
)⋅106
VREF (25°C)
T2 − T1
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
IREF
VREF
IZ(OFF)
VREF
Note:VKA=VREF(1+R1/R2)+IREFxR1
Fig 1. Test Circuit for VKA= VREF
Fig 2. Test circuit for VKA>VREF
Fig 3. Test Circuit for off-state Current
DS30748 Rev. 1 - 2
4 of 12
AP432/AP432A
www.diodes.com
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Typical Performance Characteristics
Cathode current Vs Cathode Voltage
Cathode current (uA) Vs Cathode Voltage
100
600
400
200
VKA =Vref
Ta=25oC
VKA =Vref
Ta=25oC
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
I
KA=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
Free-Air Temperature ( oC)
-50
-25
0
25
50
75
100
125
o
Free-Air Temperature (C)
Change in Reference Voltage vs Cathode Voltage
0
-2
IKA=10mA
-4
Ta=25oC
-6
-8
-10
-12
0
5
10
15
20
25
30
Cathode Voltage (V)
DS30748 Rev. 1 - 2
5 of 12
AP432/AP432A
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© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Typical Performance Characteristics (Continued)
SMALL-SIGNAL VOLTAGE AMPLIFICATION vs. FREQUENCY
60
IKA=10mA
TA=25oC
Output
232Ω
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
I
KA=10mA
T =25oC
A
1KΩ
Output
I
KA
10
50Ω
-
+
GND
1
1
TEST CIRCUIT FOR REFERENCE IMPEDANCE
0.1
1K
10K
100K
1M
10M
f-Frequency-Hz
DS30748 Rev. 1 - 2
6 of 12
AP432/AP432A
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© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
PULSE RESPONSE
Input
6
5
4
3
2
1
0
TA=25oC
220Ω
Output
Pulse
Generator
f=100kHz
50Ω
Output
GND
TEST CIRCUIT FOR PULSE RESPONSE
-1
0
1
2
3
4
5
6
7
t-Time-µS
150Ω
STABILITY BOUNDARY CONDITIONS†
100
TA=25oC
AVKA=V
ref
I
KA
90
80
70
60
50
40
30
20
10
0
B VKA=5V
+
-
VBATT
C VKA=10V
D VKA=15V
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
DS30748 Rev. 1 - 2
7 of 12
AP432/AP432A
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© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Application Examples
VIN
VIN
IOUT
RCL
R
VIN
R1B
R1A
+
ON
R2A
R2B
OFF
VIN
-V
Delay =
RC x ln (
)
IOUT = VREF / RCL
<
<
LED on when Low Limit VIN High Limit
V
IN
REF
≈
Low Limit
High Limit
V
(1+R1B/R2B)
(1+R1A/R2A)
REF
≈
V
REF
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
RS
LIMIT
(1 + R1/R2) x VREF
VOUT
= (1 + R1/R2) x VREF
IOUT = 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 Limit <
VIN < High Limit
+
VBE
R2B
(1 + R1B/R2B) +VBE
(1 + R1A/R2A)
Low Limit
High Limit
VREF
VREF
Fig.10 Over-Voltage / Under-Voltage Protection Circuit
DS30748 Rev. 1 - 2
8 of 12
AP432/AP432A
www.diodes.com
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Package Diagrams (All Dimensions in mm)
(1) PowerDI™5
(2) SOT-23
0.37/0.51
1.05/
1.15
3.90/
4.05
1.70/
1.88
0.33/0.43
0.50/
0.65
6.40/
6.60
TOP VIEW
0.89/
1.03
5.30/5.45
0.45/0.60
G
0.50/
0.65
2.80/3.00
0.085/0.180
0.33/0.43
0.80/
0.99
0.80/
0.99
0.013/
0.10
0.45/0.61
3.90/4.05
3.05 NOM
0°/8°
0.75/0.95
1.70/1.88
6.40/6.60
3.55
NOM
1.20/1.50
0.80/0.99
0.50/0.65
0.80/0.99
(3) DFN1006-3
(4) SC-59
0.35/0.50
0/0.05 Typ 0.03
0.95/1.05
Typ 1.00
0.95/1.05
Typ 1.00
0.10/0.20
Typ 0.15
2.70/
3.00
TOP VIEW
0.45/0.55
Typ 0.50
0.35
1.90
0.20/0.30
Typ 0.25
0.20/0.30
Typ 0.25
2.90/3.10
Typ
0.40
1.00/
1.30
0.10/0.20
0.013/0.10
0.95
0.35/0.55
0°/8°
DS30748 Rev. 1 - 2
9 of 12
www.diodes.com
AP432/AP432A
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Marking Information
(1) SOT-23/SC-59
(Top View)
X X X
Date Code
Y : Year
M : Month (1~D)
Marking Code
X : Blank : Lead Free
G : Green
(2) PowerDI™5
( Top view)
AP432X
YWW X
Logo
Date code
Y
: Year
WW: Nth w eek
Accuracy
Lead Free
2.495 ± 1%
Blank :
A :
Blank : Lead Free
G : Green
2.495 ± 0 .5%
DS30748 Rev. 1 - 2
10 of 12
AP432/AP432A
www.diodes.com
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
(3) DFN
( Top view)
XX
Marking Code
Lead Free
Blank : Lead Free
Green : Underlined First code
Date Code Key
Year
2006
2007
2008
2009
2010
Code
T
U
V
W
X
Month
Code
Jan
Feb March Apr
May
Jun
Jul
Aug Sep
Oct
Nov
Dec
1
2
3
4
5
6
7
8
9
O
N
D
Marking Code Table
Device
AP432FB
Package
DFN
Marking Code
Date Code
⎯
D3
⎯
YM
YM
YM
YM
YWW
YWW
AP432AFB
AP432SA
DFN
D4
D3
D4
D3
SOT-23
SOT-23
SC-59
SC-59
PowerDI™5
PowerDI™5
AP432ASA
AP432SN
AP432ASN
AP432APB
AP432APB
D4
AP432
AP432A
Notes: 6. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
PowerDI is a trademark of Diodes Incorporated.
DS30748 Rev. 1 - 2
11 of 12
AP432/AP432A
www.diodes.com
© Diodes Incorporated
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
DS30748 Rev. 1 - 2
12 of 12
www.diodes.com
AP432/AP432A
© Diodes Incorporated
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