1 Features

• Radiation tolerant

– Single Event Latch-up (SEL) immune to

43MeV·cm2 /mg at 125°C

– ELDRS free to 30krad (Si)

– Total Ionizing Dose (TID) RLAT for every wafer

lot up to 30krad(Si)

– TID characterized to 30krad (Si)

• Space enhanced plastic

– –55°C to 125°C temperature range

– Controlled baseline

– Gold wire

– NiPdAu Lead Finish

– One fabrication, assembly, and test site

– Extended product life cycle

– Extended product change nofication

– Product traceability

– Enhanced mold compound for low outgassing

• 1.65V to 5.5V supply range

• Precision input offset voltage 300μV

• Power-on Reset (POR) for known start-up

• Rail-to-Rail input with fault-tolerance

• 100ns typical propagation delay

• Low quiescent current 25μA per channel

• 2kV ESD protection

• Open-drain output option (TLV4H290-SEP)

• Push-pull output option (TLV4H390-SEP)

2 Applications

• Support Low Earth Orbit Space Applications

• Satellite Electrical Power Systems

• Flight Control Unit

• Communications Payload

3 Description

The TLV4H290-SEP and TLV4H390-SEP are quad

channel comparators which offer low input offset

voltage, fault-tolerant inputs with an excellent speedto-

power combination with a propagation delay of

100ns. Operating voltage range of 1.65V to 5.5V with

a quiescent supply current of 25μA per channel.

This device family also includes a Power-on Reset

(POR) feature that makes sure the output is in a

known state until the minimum supply voltage has

been reached and a small time period passed before

the output starts responding to the inputs. This

prevents output transients during system power-up

and power-down. These comparators also feature no

output phase inversion with fault-tolerant inputs that

can go up to 6V without damage.

The TLV4H290-SEP comparator has an open-drain

output stage that can be pulled below or beyond

the supply voltage, making it appropriate for level

translation. The TLV4H390-SEP comparator has a

push-pull output stage capable of both sinking and

sourcing current.

The TLV4H290-SEP and TLV4H390-SEP are

available in a plastic 14-pin SOT-23 package with

radiation tolerance up to 43MeV·cm2 /mg.