HA17431 Hitachi Semiconductor, HA17431 Datasheet - Page 3

• Manufacturer Part Number: HA17431
• Description: Regarding the change of names mentioned in the document/ such as Hitachi Electric and Hitachi XX/ to Renesas Technology Corp.
• Manufacturer: Hitachi Semiconductor

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 V
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
• Car use is provided
Block Diagram
mounting density circuit boards
Note: * The PS pin is only provided by the HA17431VLP.
HA17431 Series
REF
2.500V
Shunt Regulator
+
−
K
A
2kΩ
PS*
ADE-204-049A (Z)
KA
max of 16 volts.
Sep. 2002
Rev.1