company blog about Mingjiada Supply ST eFuse ICs, Supply STEF05, STEF12, STEF512 Series Integrated Electronic Fuse

Mingjiada Supply ST eFuse ICs, Supply STEF05, STEF12, STEF512 Series Integrated Electronic Fuse

Shenzhen Mingjiada Electronics Co., Ltd. — specialising in STMicroelectronics power protection devices, providing supply services for the STEF series of integrated electronic fuses (eFuses), covering the STEF05, STEF12 and STEF512 series of high-performance integrated electronic fuses (eFuses). Unlike traditional physical fuses that require replacement, an eFuse is a reusable smart protection chip that provides more reliable and flexible power protection for precision electronic equipment.

Single-channel eFuses: STEF05 and STEF12

These two models are basic eFuses, providing protection for 5V and 12V power rails respectively.

Core Functionality: Connected in series within the power path, they continuously monitor the output current and input voltage. In the event of overcurrent or overvoltage, they rapidly limit the output current to a safe level; if the fault persists, they completely disconnect the load from the power supply.

Intelligent and Convenient: Once the fault has been rectified, they can be easily restored by resetting the power supply or activating the ‘Enable’ pin, without the need for replacement. A ‘Fault’ signal pin is also provided to facilitate system monitoring.

Design Flexibility: The turn-on time can be programmed via an external capacitor, facilitating control of inrush current.

Dual-Channel eFuse: STEF512

The STEF512 integrates two independent eFuses on a single chip, dedicated to the 5V and 12V power rails respectively, making it ideal for complex systems requiring simultaneous protection of both voltages.

High Integration: Integrating two protection functions into a single device effectively saves PCB space.

Advanced Features:

Reverse current protection (5V channel): Prevents current from flowing back from the load to the input in the event of an input voltage drop or shutdown.

Current monitoring: The load current of each channel can be precisely monitored via the IMON pin.

Inrush current control: Effectively manages inrush current during start-up via an internal slew rate control circuit.

Mingjiada Electronics supplies [ST] integrated electronic fuses (eFuses), including but not limited to the following:

STEF01F

STEF033PUR

STEF033APUR

STEF05PUR

STEF05DPUR

STEF05LPUR

STEF05LAPUR

STEF05SGR

STEF12PUR

STEF12EPUR

STEF12H60GPUR

STEF12H60MAPUR

STEF12SPUR

STEF12SAPUR

STEF12SGR

STEF4SPUR

STEF512GR

STEF512PUR

STEF512SRDBPUR

STEF512SRIPUR

These eFuses are widely used in applications requiring high reliability, such as:

Set-top boxes

Hard disk drives

Solid-state drives (SSDs)

Hard disk and solid-state drive arrays

For further information on the range of [ST] integrated electronic fuses (eFuses) available, or to enquire about sample prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further details.