Home Power management Voltage references Shunt voltage references

Precision Analog Controller

Product details

Rating Catalog Operating temperature range (°C) -40 to 85
Rating Catalog Operating temperature range (°C) -40 to 85
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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)
  • 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)

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.

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.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet Precision Analog Controller datasheet (Rev. A) 05 Dec 2008
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Application note DN-52 Adjustable Electronic Load for Low Voltage DC Applications 05 Sep 1999

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
SOIC (D) 8 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos