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PDF APL431L Data sheet ( Hoja de datos )
| Número de pieza | APL431L | |
| Descripción | Low Voltage Adjustable Precision Shunt Regulator | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APL431L
Low Voltage Adjustable Precision Shunt Regulator
Features
General Description
• Precise Reference Voltage to 1.24V
• Guaranteed 0.5%, 1% or 1.5% Reference Voltage
Tolerance
• Sink Current Capability, 80uA to 100mA
• Quick Turn-on
• Adjustable Output Voltage, VO = VREF to 20V
• Low Operational Cathode Current, 80µA Typical
• 0.1Ω Typical Output Impedance
• SOT-23-3, SOT-23-5, TO-92 and SOT-89
Packages
• Lead Free and Green Devices Available
(RoHS Compliant)
Applications
• Linear Regulators
• Adjustable Power Supply
• Switching Power Supply
The APL431L is a 3-terminal low voltage adjustable
precision reference with specified thermal stability
over applicable commercial temperature ranges.
Output voltage may be set to any value between
VREF (1.24 V) and 20 V with two external resistors
(see Figure 2). When used with an photocoupler,
the APL431L is an ideal voltage reference in isolated
feedback circuits for 3V to 12V switching-mode
power supplies. This device has a typical output
impedance of 0.1W. Active output circuitry provides
a very sharp turn-on characteristic, making the
APL431L excellent replacements for zener diodes
in many applications, including on-board regulation
and adjustable power supplies.
Pin Configuration
Symbol
Anode
REF
Cathode
ANODE
3
12
REF CATHODE
NC NC
54
123
REF ANODE CATHODE
Functional Diagram
Cathode
REF
Vref
3 CATHODE
2 ANODE
1 REF
123
REF ANODE CATHODE
Anode
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. B.10 - Mar., 2008
1
www.anpec.com.tw
1 page  
APL431L
Typical Characteristics
Cathode Current vs. Cathode Voltage
250
VKA=VREF
200 TA=25°C
150
100
50
0
-50
-100
-150
-200
-250
-1 -0.5 0 0.5 1
Cathode Voltage (V)
1.5
Cathode Current vs. Cathode Voltage
100
VKA=VREF
TA=25°C
50
0
-50
-100
-1.5
-1 -0.5 0 0.5 1
Cathode Voltage (V)
1.5
Referemce Voltage vs.
Junction Temperature
1.26
IKA=10mA
1.25
1.24
1.23
1.22
-50 -25
0
25 50 75 100 125 150
Junction Temperature (°C)
Reference Input Current vs.
Junction Temperature
0.18
IKA=10mA
R1=10kΩ, R2=∞
0.16
0.14
0.12
0.10
0.08
-50 -25 0 25 50 75 100 125 150
Junction Temperature (°C)
Copyright © ANPEC Electronics Corp.
Rev. B.10 - Mar., 2008
5
www.anpec.com.tw
5 Page 
APL431L
Package Information
TO-92
D
j
e1 b
e
S TO-92
Y
M
B
MILLIMETERS
INCHES
O
L MIN.
MAX.
MIN.
MAX.
A 4.32
5.33
0.170
0.210
b 0.41
0.53
0.016
0.021
D 4.45
5.20
0.175
0.205
E 3.18
4.19
0.125
0.165
e 2.42
e1 1.15
j 3.43
L 12.70
S 2.03
2.66
1.39
4.00
15.00
2.66
0.095
0.045
0.135
0.500
0.080
0.105
0.055
0.157
0.591
0.105
Note : FollowJEDEC TO-92.
Copyright © ANPEC Electronics Corp.
Rev. B.10 - Mar., 2008
11
www.anpec.com.tw
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet APL431L.PDF ] | |
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