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HA17431. 17431 Datasheet |
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HA17431 Series
Shunt Regulator
ADE-204-049A (Z)
Rev.1
Sep. 2002
Description
The HA17431 series is temperature-compensated variable shunt regulators. The main application of these
products is in voltage regulators that provide a variable output voltage. The on-chip high-precision
reference voltage source can provide ±1% accuracy in the V versions, which have a VKA max of 16 volts.
The HA17431VLP, which is provided in the MPAK-5 package, is designed for use in switching mode
power supplies. It provides a built-in photocoupler bypass resistor for the PS pin, and an error amplifier
can be easily constructed on the supply side.
Features
• The V versions provide 2.500 V ±1% at Ta = 25°C
• The HA17431VLP includes a photocoupler bypass resistor (2 kΩ)
• The reference voltage has a low temperature coefficient
• The MPAK-5(5-pin), MPAK(3-pin) and UPAK miniature packages are optimal for use on high
mounting density circuit boards
• Car use is provided
Block Diagram
K PS*
REF
2.500V
+
−
2kΩ
A
Note: * The PS pin is only provided by the HA17431VLP.
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HA17431 Series
Application Circuit Example
Switching power supply secondary-side error amplification circuit
Vout
R
+ R1
– K PS
2kΩ
REF
A
R2
HA17431VLP
GND
Ordering Information
Item
Reference
voltage
(at 25°C)
Accuracy
Max
Typ
Min
Cathode voltage
Cathode current
Car use
Version
V Version
±1%
2.525 V
2.500 V
2.475 V
16 V max
50 mA max
HA17431VPJ
A Version
±2.2%
2.550 V
2.495 V
2.440 V
40 V max
150 mA max
HA17431PNAJ
HA17431PAJ
HA17431FPAJ
Normal
Version
±4%
2.595 V
2.495 V
2.395 V
40 V max
150 mA max
Package
TO-92
HA17431PJ
HA17431FPJ
TO-92MOD
FP-8D
Operating
Temperature
Range
–40 to +85°C
Rev.1, Sep. 2002, page 2 of 24
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HA17431 Series
Ordering Information (cont.)
Item
Industrial use
Commercial use
Version
V Version
HA17431VLTP
HA17432VLTP
HA17431VLP
HA17431VP
HA17431VUP
HA17432VUP
A Version
HA17431PNA
HA17431UPA
HA17432UPA
HA17431PA
HA17431FPA
HA17431UA
HA17432UA
Normal
Version
Package
MPAK
Operating
Temperature
Range
–20 to +85°C
MPAK-5
TO-92
UPAK
HA17431P
HA17431FP
TO-92MOD
FP-8D
UPAK
Pin Arrangement
MPAK-5
NC
5
PS
4
MPAK
(HA17431VLTP)
A
3
MPAK
(HA17432VLTP)
A
3
UPAK
(HA17431UA/UPA/VUP)
A
UPAK
(HA17432UA/UPA/VUP)
A
12 3
REF A K
1
REF
2
K
12
K REF
123
REF A K
123
K A REF
FP-8D
REF NC A NC
8765
TO-92
Mark side
123
TO-92MOD
Mark side
123
1234
K NC NC NC
REF A K
REF A K
Rev.1, Sep. 2002, page 3 of 24
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