Image of Texas Instruments - TPS7H2221-SEP - Radiation-tolerant 1.6-V to 5.5-V input 1.25-A load switch on the satsearch marketplace

Key highlights

The Texas Instruments TPS7H2221-SEP device is a small, single-channel load switch with a controlled slew rate.

It consists of an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.25 A.

The TPS7H2221-SEP load switch is also self-protected, meaning that it protects against short circuit events on the output of the device. The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals.

When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven high (VON>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss.

Applications

Space satellite power management and distribution
Radiation-tolerant power tree applications
Enables switching power rails for controller power up and power down
Satellite electrical power systems (EPS)

Key features

Single-event effects (SEE) characterized:
- Single-event latch-up (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune to effective linear energy transfer (LETEFF) of 43 MeV– cm2/mg.
- Single-event transient (SET) and single-event functional interrupt (SEFI) characterized to LETEFF of 43 MeV– cm2/mg.
Space Enhanced Plastic (SEP)
- Controlled baseline
- Gold bondwire
- NiPdAu lead finish
- One assembly and test site
- One fabrication site
- Extended product life cycle
- Extended product-change notification (PCN)
- Product traceability
- Enhance mold compound for low outgassing

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Last updated: 2024-07-01

Texas Instruments