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Part Number: UC19432

 

 

 

 

Description: The UC39432 is an adjustable precision analog controller with 100mA sink capability if the ISET pin is...


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UC19432 General Description


The UC39432 is an adjustable precision analog controller with 100mA sink capability if the ISET pin is grounded. A resistor between ISET and ground will modify the transconductance while decreasing the maximum current sink. This will add further control in the optocoupler configuration. The trimmed precision reference along with the non-inverting error amplifier inputs are accessible for custom configuration. A sister device, the UC39431 adjustable shunt regulator, has an on-board resistor network providing six preprogrammed voltage levels, as well as external programming capability.

UC19432 Maximum Ratings

Supply Voltage: VCC. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36V
Regulated Output: VCOLL. . . . . . . . . . . . . . . . . . . . . . . . .  36V
EA Input: SENSE, EA+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
EA Compensation: COMP. . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Reference Output: REF . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Output Sink Current: ICOLL . . . . . . . . . . . . . . . . . . . . . 140mA
Output Source Current: ISET . . . . . . . . . . . . . . . . . . . 140mA
Power Dissipation at TA   25°C (DIL-8) . . . . . . . . . . . . . 1W
    Derate 8mW/°C for TA > 25°C
Storage Temperature Range . . . . . . . . . . . 65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . . 55°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . +300°C

Currents are positive into, negative out of the specified terminal.Consult Packaging Section of Databook for thermal limitations and considerations of packages.

UC19432 Features

· Programmable Transconductance for Optimum Current Drive
· Accessible 1.3V Precision Reference
· Both Error Amplifier Inputs Available
· 0.7% Overall Reference Tolerance
· 0.4% Initial Accuracy
· 2.2V to 36.0V Operating Supply Voltage and User Programmable Reference
· Reference Accuracy Maintained for Entire Range of Supply Voltage
· Superior Accuracy and Easier Compensation for Optoisolator Application
· Low Quiescent Current (0.50mA Typ)

UC19432 Connection Diagram

UC19432  Connection Diagram

UC19432 datasheet

UC19432
PDF/DataSheet Download

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