Features

 700mA Output Source Current

 Zero Quiescent Off Current

 Full Channel Isolation to Prevent Fault

Propagation

 Internal Ground Clamp Diodes

 75V Output Breakdown Voltage

 TTL, 5V and 12V Logic Compatible

 Internal Thermal Shutdown

 Radiation tolerant to 100kRad(Si) Total Dose,

50kRad (Si) ELDRS

 -55°C to +125°C Temperature Range

 Available in 20-pin Ceramic SOIC with formed

and flat Leads

 QML listed with SMD 5962-15231

Applications

 Relay/Solenoid Drivers

 Lamp/LED Drivers

 Stepper and/or Servo Motor Drivers

Description

The AAHS298B is part of Microsemi’s new family of

Radiation Tolerant products aimed at the aerospace

and defense markets. The AAHS298B is a Radiation-

Tolerant source driver with eight non-inverting

channels, with internal thermal shutdown.

Capable of providing an interface from TTL, 5V or 12V

logic systems to relays, motors, solenoids, and other

loads, this device adds the additional benefit of an

internal thermal shutdown and output transient

protection/clamp diodes with sustaining voltages to

75V.

Each output is capable of sourcing 700mA with a

withstand voltage of 75V over the full military

temperature range. The thermal shutdown is intended

to protect against over-current and soft-start

occurrences.

The AAHS298B is offered in 20-pin ceramic SOIC

package with formed and flat leads. The AAHS298B

has demonstrated tolerance to 100kRad (Si) total dose

min), 50kRad (Si) ELDRS (min), as well as immunity

to latch-up and SEE tolerance.