TPS7H3024-SP中文资料Radiation-hardened, QMLV, 3V to 14V, 4-channel supervisor with watchdog timer数据手册TI规格书

描述 Description

The TPS7H3024-SP is an integrated, 3V to 14V, four-channel radiation-hardness-assured power-supply supervisor with watchdog. An accurate 599.7mV ± 1% threshold voltage and a 24µA ± 3% hysteresis current provide programmable monitoring voltages. A global programmable delay timer is programmed via a single resistor. In addition a PWRGD output is provided to monitor the global power tree status. The device also incorporates a positive edge detection watchdog timer to monitor an external processor for coherent execution. Faults can be detected and mitigated by the external controller, using the SR_UVLO input. A standard microcircuit drawing (SMD) is available for the QMLV, 5962R2420601VXC.

特性 Features

Radiation performance:

Radiation hardness assurance (RHA) up to a total ionizing dose (TID) of 100krad(Si)

Single-event latchup (SEL), single-event burnout (SEB), and single-event gate rupture (SEGR) immune up to linear energy transfer (LET) = 75MeV-cm2/mg

Single-event functional interrupt (SEFI) and single-event transient (SET) characterized up to LET = 75MeV-cm2/mg



Wide supply IN voltage range (VIN): 3V to 14V

Monitor up to 4 voltage rails with high accuracy:

TPS7H3024: 2 OV + 2 UV or 2 window with push-pull



Monitor coherent processor execution using the watchdog timer

Single resistor programmable global delay timer

Programmable watchdog time-out

Precision threshold voltage and hysteresis current:

VTH_SENSEx of 599.7mV ± 1% across: voltage, temperature, and radiation (TID)

IHYS_SENSEx of 24µA ± 3% across: voltage, temperature, and radiation (TID)



Push-Pull outputs with programmable pull-up voltage between 1.6V to 7V

Global RESETx pull-up domain (VPULL_UP1)

Common PWRGD and WDO pull-up domain (VPULL_UP2)



SR_UVLO input to reset all outputs

Or adjust the undervoltage lockout externally via a resistive divider



Available in military (–55°C to 125°C) temperature range