VC91200 LUMIC Radiation-Hardened Latch-Up Monitor IC
VORAGO Technologies
The VORAGO VC91200 (marketed as LUMIC — Latch-Up Monitor Integrated Circuit) is a radiation-hardened Application-Specific Standard Product designed to detect and respond to single-event latch-up (SEL) events in space electronics. Manufactured with HARDSIL technology, the VC91200 provides four independent overcurrent sensing channels, each with programmable current trigger levels, enabling a single chip to protect four […]
Technical specifications
- Product type
- ASSP - 4-channel latch-up monitor
- Core voltage
- 1.5 V +/- 10%
- I/o voltage
- 3.3 V +/- 10%
- Load supply range
- 0.71 V to 5.5 V
- Sensing channels
- 4 (independent overcurrent detection)
- Current trigger
- Programmable per channel
- Configuration interfaces
- GPIO, UART, I2C
- Features
- Power supply sequencing, watchdog timer, temperature sensor, thermal shutdown
- Operating temperature
- -55 to +125 deg C
- TID (Total Ionizing Dose)
- >200 krad(Si)
- SEL immunity
- >110 MeV·cm2/mg @ 125 deg C
- Sefi/ser
- <1e-15 errors/bit-day
- Radiation technology
- HARDSIL
- Package
- 176 PQFP
About
The VORAGO VC91200 (marketed as LUMIC — Latch-Up Monitor Integrated Circuit) is a radiation-hardened Application-Specific Standard Product designed to detect and respond to single-event latch-up (SEL) events in space electronics. Manufactured with HARDSIL technology, the VC91200 provides four independent overcurrent sensing channels, each with programmable current trigger levels, enabling a single chip to protect four separate power rails or subsystems simultaneously.
When a latch-up event is detected on any channel, the VC91200 can automatically power-cycle the affected subsystem, isolate it, and alert the host processor — preventing destructive overcurrent from damaging sensitive ASICs, FPGAs, and memory devices. The device also includes a temperature sensor with thermal shutdown, power supply sequencing control, and a watchdog timer, effectively serving as a dedicated system health monitor.
Radiation performance matches VORAGO’s HARDSIL portfolio: TID >200 krad(Si), SEFI/SER 110 MeV·cm²/mg at 125 deg C. Configuration is performed via GPIO, UART, or I2C interfaces. Particularly valuable in missions pairing radiation-tolerant AMD/Xilinx FPGAs with VORAGO MCUs.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.