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The NCP431/NCP432 integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient Zener which is programmable from Vref to 36 V using two external resistors. These devices exhibit a wide operating current range of 40 A to 100 mA with a typical dynamic impedance of 0.22 . The characteristics of these references make them excellent replacements for Zener diodes in
many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the NCP431/NCP432 operates as a shunt regulator, it can be used as either a positive or negative voltage reference. Low minimum operating current makes this device an ideal choice for secondary regulators in SMPS adapters with extremely low no-load consumption.

Features:

Programmable Output Voltage to 36 V

Low Minimum Operating Current: 40 μA, Typ @ 25°C

Voltage Reference Tolerance: ±0.5%, Typ @ 25°C (NCP431B/NCP432B)

Low Dynamic Output Impedance, 0.22 ΩTypical

Sink Current Capability of 40 μA to 100 mA

Equivalent Full-Range Temperature Coefficient of 50 ppm/°C Typical

Brand/Series	NCP VR Series
Current, Supply	100 mA
Dimensions	5.2 x 4.19 x 5.33 mm
Height	0.21" (5.33mm)
Initial Accuracy	1 %
Input Voltage	2.5 V
Length	0.204" (5.2mm)
Mounting Type	Through Hole
Number of Pins	3
Package Type	TO-92
Power Dissipation	1.5 W
Reference Type	Precision, Programmable
Supply Voltage	36 V
Temperature, Operating, Maximum	+70 °C
Temperature, Operating, Minimum	0 °C
Temperature, Operating, Range	0 to +70 °C
Topology	Shunt
Voltage, Input, High Level	2.525 V
Voltage, Output, Maximum	36 V
Voltage, Output, Minimum	2.475 V
Voltage, Rated	Maximum of 36 V
Width	0.165" (4.19mm)
关键词

Brand/Series NCP VR Series  ON Semiconductor Brand/Series NCP VR Series  Voltage References Brand/Series NCP VR Series  ON Semiconductor Voltage References Brand/Series NCP VR Series   Current, Supply 100 mA  ON Semiconductor Current, Supply 100 mA  Voltage References Current, Supply 100 mA  ON Semiconductor Voltage References Current, Supply 100 mA   Dimensions 5.2 x 4.19 x 5.33 mm  ON Semiconductor Dimensions 5.2 x 4.19 x 5.33 mm  Voltage References Dimensions 5.2 x 4.19 x 5.33 mm  ON Semiconductor Voltage References Dimensions 5.2 x 4.19 x 5.33 mm   Height 0.21" (5.33mm)  ON Semiconductor Height 0.21" (5.33mm)  Voltage References Height 0.21" (5.33mm)  ON Semiconductor Voltage References Height 0.21" (5.33mm)   Initial Accuracy 1 %  ON Semiconductor Initial Accuracy 1 %  Voltage References Initial Accuracy 1 %  ON Semiconductor Voltage References Initial Accuracy 1 %   Input Voltage 2.5 V  ON Semiconductor Input Voltage 2.5 V  Voltage References Input Voltage 2.5 V  ON Semiconductor Voltage References Input Voltage 2.5 V   Length 0.204" (5.2mm)  ON Semiconductor Length 0.204" (5.2mm)  Voltage References Length 0.204" (5.2mm)  ON Semiconductor Voltage References Length 0.204" (5.2mm)   Mounting Type Through Hole  ON Semiconductor Mounting Type Through Hole  Voltage References Mounting Type Through Hole  ON Semiconductor Voltage References Mounting Type Through Hole   Number of Pins 3  ON Semiconductor Number of Pins 3  Voltage References Number of Pins 3  ON Semiconductor Voltage References Number of Pins 3   Package Type TO-92  ON Semiconductor Package Type TO-92  Voltage References Package Type TO-92  ON Semiconductor Voltage References Package Type TO-92   Power Dissipation 1.5 W  ON Semiconductor Power Dissipation 1.5 W  Voltage References Power Dissipation 1.5 W  ON Semiconductor Voltage References Power Dissipation 1.5 W   Reference Type Precision, Programmable  ON Semiconductor Reference Type Precision, Programmable  Voltage References Reference Type Precision, Programmable  ON Semiconductor Voltage References Reference Type Precision, Programmable   Supply Voltage 36 V  ON Semiconductor Supply Voltage 36 V  Voltage References Supply Voltage 36 V  ON Semiconductor Voltage References Supply Voltage 36 V   Temperature, Operating, Maximum +70 °C  ON Semiconductor Temperature, Operating, Maximum +70 °C  Voltage References Temperature, Operating, Maximum +70 °C  ON Semiconductor Voltage References Temperature, Operating, Maximum +70 °C   Temperature, Operating, Minimum 0 °C  ON Semiconductor Temperature, Operating, Minimum 0 °C  Voltage References Temperature, Operating, Minimum 0 °C  ON Semiconductor Voltage References Temperature, Operating, Minimum 0 °C   Temperature, Operating, Range 0 to +70 °C  ON Semiconductor Temperature, Operating, Range 0 to +70 °C  Voltage References Temperature, Operating, Range 0 to +70 °C  ON Semiconductor Voltage References Temperature, Operating, Range 0 to +70 °C   Topology Shunt  ON Semiconductor Topology Shunt  Voltage References Topology Shunt  ON Semiconductor Voltage References Topology Shunt   Voltage, Input, High Level 2.525 V  ON Semiconductor Voltage, Input, High Level 2.525 V  Voltage References Voltage, Input, High Level 2.525 V  ON Semiconductor Voltage References Voltage, Input, High Level 2.525 V   Voltage, Output, Maximum 36 V  ON Semiconductor Voltage, Output, Maximum 36 V  Voltage References Voltage, Output, Maximum 36 V  ON Semiconductor Voltage References Voltage, Output, Maximum 36 V   Voltage, Output, Minimum 2.475 V  ON Semiconductor Voltage, Output, Minimum 2.475 V  Voltage References Voltage, Output, Minimum 2.475 V  ON Semiconductor Voltage References Voltage, Output, Minimum 2.475 V   Voltage, Rated Maximum of 36 V  ON Semiconductor Voltage, Rated Maximum of 36 V  Voltage References Voltage, Rated Maximum of 36 V  ON Semiconductor Voltage References Voltage, Rated Maximum of 36 V   Width 0.165" (4.19mm)  ON Semiconductor Width 0.165" (4.19mm)  Voltage References Width 0.165" (4.19mm)  ON Semiconductor Voltage References Width 0.165" (4.19mm)