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UC19432-SP |UC19432SPTIN/a134avaiPrecision Analog Controller


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UC19432-SP
Precision Analog Controller 8-CDIP -55 to 125
JG PACKAGE
(TOP VIEW)
UC19432-SP
www.ti.com
SLUS951A –NOVEMBER 2009–REVISED JULY 2010
Rad-Tolerant Class-V, Precision Analog Controller
Checkfor Samples: UC19432-SP
1FEATURES • Superior Accuracy and Easier Compensation
for Optoisolator Application• QML-V Qualified, SMD 5962-09233 Low Quiescent Current (0.5 mA Typ)• Rad Tolerant:30 kRad(Si) TID
(1) TID Dose Rate= 10 mRad/sec 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 2.4-Vto 24-V Operating Supply Voltage and
User Programmable Reference Reference Accuracy Maintained for Entire
Rangeof Supply Voltage

(1) Radiation toleranceisa typical value based upon initial device
qualification. RadiationLot Acceptance Testingis available-
contact factoryfor details.
DESCRIPTION

The UC19432is an adjustable precision analog controller with 100-mA sink capabilityif the ISET pinis
grounded.A resistor between ISET and ground will modify the transconductance while decreasing the maximum
current sink. This will add further controlin the optocoupler configuration. The trimmed precision reference along
with the non-inverting error amplifier inputs are accessiblefor custom configuration.A sister device, the UC19431
adjustable shunt regulator, hasan on-board resistor network providing six preprogrammed voltage levels,as well exernal programming capability.
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