Features
• Wide-range supply voltage: 8.5 - 90 V DC (Qualified in radiation at VCC from 8.5
V to 52 V)
• Very low DC current: typ. 1.5 mA
• External current limitation setting
• 3 types of operation
– Re-triggerable
– Latched
– Foldback
• Configurable trip-off and recovery times
• Smart current limitation for repetitive overload
• Embedded current sense
• Configurable undervoltage protection
• Floating ground
• Flat-20 hermetic package
• Radiation hardened
– TID : 100 krad (Si) HDR, LDR
– SEL and SEU free up to 78 MeV.cm²/mg
– SET report available upon request
• QML-V qualified SMD 5962-17211
• Evaluation boards available

Description
The RHRPMICL1A is an integrated current limiter designed to work with an external
P-channel power MOSFET.
It can be used as a universal solution to protect a power supply (from 8.5 V) from
anomalous external current demand (for example, in case the load enters latch-up
conditions).
It can protect or replace conventional fuses and can also be used to control
redundant loads.
The RHRPMICL1A features 3 user-configurable operating modes (re-triggerable,
latched, foldback), with different behaviors in case of overload/short-circuit events.
All key parameters of the application, including the current limit, the trip-off and
recovery times and the undervoltage protection are user configurable, making the
RHRPMICL1A suitable for a wide range of applications.
Telemetry pins (STS and TM) and telecommand pins (TC_ON and TC_OFF) allow
the device respectively to be monitored and controlled and the power on the load to
be managed properly.
The RHRPMICL1A is designed in ST's proprietary BCD6s-SOI technology to provide
total dose and heavy ion radiation hardness. Housed in a hermetic Flat-20 package
assembled in ST's QML-V certified facility, it is ideally suited for harsh environments.