Unitrode UC19431
the UC19431, TA = −25°C to +85°C and COLL Output = 2.3V to 36.0V for the UC29431, and TA = 0°C to +70°C and COLL Output = 2.3V to 36.0V for the UC39431/B, VCC = 15V, ICOLL = 10mA, TA = TJ. These references are 2.82V, 3.12V, 5.1V, 7.8V, 10.42V, 12.24V.| Part No. | UC19431 |
|---|---|
| Datasheet | UC19431 Download |
| Manufacturer |  Unitrode |
| Description | Precision Adjustable Shunt Regulator |
| Buy | Stock & Price |
FEATURES
● Multiple On-Chip Programmable Reference Voltages● 0.4% Initial Accuracy
● 0.7% Overall Reference Tolerance
● 2.2V to 36.0V Operating Supply Voltage and User Programmable Reference
● 36.0V Operating Supply Voltage
● Reference Accuracy Maintained For Entire Range of Supply Voltage
● Superior Accuracy and Easier Compensation for Optoisolator Application
● Improved Architecture Provides a Known Linear Transconductance with a +5% Typical Tolerance
DESCRIPTION
The UC39431 is an adjustable shunt voltage regulator with 100mA sink capability. The architecture, comprised of an error amplifier and transconductance amplifier, gives the user separate control of the small signal error voltage frequency response along with a fixed linear transconductance. A minimum 3MHz gain bandwidth product for both the error and transconductance amplifiers assures fast response. In addition to external programming, the IC has three internal resistors that can be connected in six different configurations to provide regulated voltages of 2.82V, 3.12V, 5.1V, 7.8V, 10.42V, and 12.24V.
