Protection Latch-up Current Limiter (LCL)

Demande d'information



Advanced high performance semiconductor devices can be sensitive to Single Event Latch-Up (SEL) effect when exposed under radiation in the Space environment. Even if SEL is a very rare event, it can lead to a self destruction of the device and shall be mitigated to ensure the relevant reliability and life time of the application. Therefore, a safe design for a mission critical Space application shall include a  protection device.

The 3DPM0168 Latch-Up Current Limiter (LCL) monitors the power supply line of the semiconductor device and switches it off instantaneously in case of any overcurrent or “radiation induced SEL” in order to protect the device from overheating.

Featuring specific radiation effect mitigation techniques and utilizing Space design derating rules, the Rad-Hard-by-Design 3DPM0168 LCL is an ITAR Free product and features a SEL/SEE LETth of 80 MeV-cm²/mg and a TID of 50 krad(Si).

The 3DPM0168 is manufactured with 3D PLUS Space Qualified stacking technology designed for for high reliability applications, and is available in a compact size and low weight 20-pin SOP package.

Key features

  • Overcurrent protection for power lines from 0.8V to 6V and up to 2A

    Very fast switch-off time (10µs max)

    Very low voltage drop across the LCL

  • Adjustable Run & Standby threshold currents

    Selection of the active threshold current via an external digital signal

  • Availability of two operating modes:

    Automatic reconnection after an adjustable delay

    Reconnection through the ON/OFF command

    Protection Status signal for system supervision

  • Temperature Range -40°C / +115°C

  • Radiation tolerance:

    TID > 50 krad(Si)

    SEL > 80 MeV.cm²/mg at +125°C

    SET immune

  • Space quality grade

    Technology proven for 15 to 18 years missions in Space

    Worldwide delivery guarantee

Line Up

Line Up

Each 3D PLUS standard product and SiP solution are defined by a specific part number based on the part number decoder provided below. The ordering information consist as a minimum of the following 3 items for fully define a product:

  • The product’s Part Number
  • The temperature range
  • The quality grade

For High Reliability products or SiPs for Aerospace applications, a Source Control Drawing (SCD#) referenced 3DPA-xxxx is available for each product. It shall be used for its procurement in addition to other ordering information.

Computer, Power and SiP Part Number Decoder


Product Part Number Description Package Temperature
Latch-up current limiter (LCL) 3DPM0168 Overcurrent protection for power lines from 0.8V to 5.5V and up to 2A
10µs max switch-off time
SOP20 C, I, S


Design Tools

Design Tools

Latch-up current limiter (LCL)

3DPM0168 - Assembly Recommendations PDF - 822 ko Télécharger
3DPM0168 - Footprint PDF - 154 ko Télécharger


Other technical documentation is available under request: Applications Notes, IBIS, RTL, Step and Mechanical file, Radiation Report.

Product Part Number Flyer
Latch-up current limiter (LCL) 3DPM0168 Flyer PDF - 444ko Télécharger