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Texas Instruments HiRel releases new Power Management and Logic devices for Harsh Environments
TI offers improved radiation performance on power mangement and logic devices extending product applications into high temperature, medical, and aerospace applications.

In response to market demand, TI has released new versions of its popular UC Power Management family (formerly Unitrode) and AC logic devices. ELDRS (Enhanced Low Dose Rate Sensitivity) has become an issue for Analog products in applications requiring tolerance to total dose radiation. To help mitigate this effect, TI has released new versions of its UC18xx family with reduced sensitivity which will achieve greater than 30Krads tolerance to low dose-rate radiation. The associated SMD numbers are shown below.

Unitrode Radiation Improvement Releases
SMD Number Device Function
5962-8768104VEA
5962-8768104V2A		 UC1825J-SP
UC1825FK-SP		 Dual output, 1MHz voltage/current mode PWM Controller
5962-8768105VEA UC1825AJ-SP Dual output, 1MHz voltage/current mode PWM Controller
5962-8951106V2A UC1525BFK-SP Dual output, 250KHz voltage mode PWM Controller
5962-8680603VEA
5962-8680603V2A		 UC1846J-SP
UC1846FK-SP		 Dual output, 500KHz voltage/current mode PWM Controller
5962-8670409VPA UC1843AJG-SP Single ended, 500KHz voltage/current mode PWM Controller

In addition, TI has released new versions of its AC logic family, the SN54AC14, SN54AC02, and SN54AC00 which reach a Total Irradiated Dose (TID) levels of 50Krads. These improvements provide lower leakage current and improve radiation performance for high temperature, medical and aerospace applications.

AC Logic Family Releases
SMD Number Device Function
5962-8762402VDA SN54AC14-SP Hex Inverter, Schmitt Trigger
5962-8761203VDA SN54AC02-SP Quadruple 2-Input Positive-NOR Gates
5962-8754903VCA SN54AC00-SP Quadruple 2-Input Positive-NAND Gates

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