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HA17431FPA Datasheet(PDF) 1 Page - Renesas Technology Corp |
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HA17431FPA Datasheet(HTML) 1 Page - Renesas Technology Corp |
1 / 20 page REJ03D0678-0300 Rev.3.00 Apr 03, 2007 Page 1 of 19 HA17431 Series Shunt Regulator REJ03D0678-0300 Rev.3.00 Apr 03, 2007 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-5V 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-5V(5-pin), MPAKV(3-pin) and UPAKV miniature packages are optimal for use on high mounting density circuit boards Block Diagram A + − REF K PS* 2k Ω Note: * The PS pin is only provided by the HA17431VLP. Application Circuit Example Vout + – A K REF 2k Ω PS R2 R1 HA17431VLP GND Switching power supply secondary-side error amplification circuit R |
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