1 Features

? Radiation Performance:

– Radiation-hardness-assurance (RHA) up to

total ionizing dose (TID) of 100krad(Si)

– Single-event transient (SET), single-event

burnout (SEB), and single-event gate rupture

(SEGR) immune to

linear energy transfer (LET) = 75MeV-cm2/mg

– Single-event transient (SET) and single-event

functional interrupt (SEFI) characterized up to

LET = 75MeV-cm2/mg

? 1.3A peak source, 2.5A peak sink current

? Two operational modes:

– Single PWM input with adjustable dead time

– Two independent inputs

? Selectable input interlock protection in

independent input mode

? Split outputs for adjustable turn-on and turn-off

times

? 30ns typical propagation delay in independent

input mode

? 5.5ns typical delay matching

? Plastic packages outgas tested per ASTM E595

? Available in military temperature range (–55°C to

125°C)

2 Applications

? Space satellite power supplies

? Motor drives

? Reaction wheels

? Communications payload

? Optical imaging payload

? Satellite electrical power system

3 Description

The TPS7H60x5 series of radiation-hardness-assured

(RHA) gallium nitride (GaN) field effect transistor

(FET) gate drivers is designed for high frequency,

high efficiency, and high current applications. The

series consists of the TPS7H6005 (200V rating),

TPS7H6015 (60V rating), and the TPS7H6025 (22V

rating). Each of these devices has a 56-pin HTSSOP

plastic package, and availability in both the QMLP and

Space Enhanced Plastic (SEP) grades. The drivers

feature adjustable dead time capability, small 30ns

propagation delay and 5.5ns high-side and low-side

matching. These parts also include internal high-side

and low-side LDOs which ensure a drive voltage of

5V regardless of supply voltage. The TPS7H60x5

drivers all have split-gate outputs, providing flexibility

to adjust the turn-on and turn-off strength of the

outputs independently.

The TPS7H60x5 drivers feature two control input

modes: independent input mode (IIM) and PWM

mode. In IIM each of the outputs is controlled by a

dedicated input. In PWM mode, two complementary

outputs signals are generated from a single input and

the user can adjust the dead time for each edge.

The gate drivers also offer user configurable input

interlock in independent input mode as anti-shoot

through protection. Input interlock disallows turn-on of

both outputs when both inputs are on simultaneously.

The user has the option to enable or disable

this protection in independent input mode, which

allows the driver to be used in a number of

different converter configurations. The drivers can

also be utilized for both half-bridge and dual-low side

converter applications.