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17431 HA17431 Datasheet |
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| Part Number | 17431 |
| Description | HA17431 |
| Manufacture | Hitachi Semiconductor |
| Total Page | 24 Pages |
| Datasheet |
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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| Features | HA17431 Series Shunt Regulator ADE-204- 049A (Z) Rev.1 Sep. 2002 Description Th e HA17431 series is temperature-compens ated variable shunt regulators. The mai n application of these products is in v oltage regulators that provide a variab le output voltage. The on-chip high-pre cision reference voltage source can pro vide ±1% accuracy in the V versions, w hich have a VKA max of 16 volts. The HA 17431VLP, which is provided in the MPAK -5 package, is designed for use in swit ching 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 suppl y side. Features • The V versions pro vide 2.500 V ±1% at Ta = 25°C • The HA17431VLP includes a photocoupler byp ass resistor (2 kΩ) • The reference voltage has a low temperature coeffici ent • The MPAK-5(5-pin), MPAK(3-pin) and UPAK miniature packages are optimal for use on high mounting density circu it boards • Car use is provided Block Diagram K PS* REF 2.500V + − 2kΩ . |
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