New Yorker Electronics has recently announced the availability of four newly released Vishay eFuses that feature programmable current limits and overvoltage protection (OVP) in the compact 3mm x 3mm TDFN package. The SiP32433A/B and SiP32434A/B are designed to operate over a wide 2.8V to 23V input voltage range, with a 28 VIN DC tolerance. They integrate multiple control and protection features to simplify designs and minimize the need for external components.
One of the key features of these devices is their programmable current limits, which allows the user to set a maximum current level that the device will allow to pass through it. This feature helps protect the system from overloading or short-circuiting by limiting the current to a safe level, and also provides more precise control over the power delivery to the load. The devices are intended for use in a wide range of applications, including industrial and medical equipment, robotics, consumer goods, home automation systems, and gaming consoles.
These eFuses respond swiftly to short circuits, and their precise overcurrent protection (OCP) is triggered at a set current limit level without an excessive overhead current requirement. The SiP32433A and SiP32433B with active reverse blocking target applications featuring USB Type-C and multiple power source switching. Overcurrent protection is a critical safety mechanism designed to prevent damage or failure caused by excessive current flowing through a circuit or component.
The SiP32433A/B and SiP32434A/B reduce on-resistance by 43% compared to previous-generation solutions, which translates into a 32% higher current capability or increased efficiency at the same current level. Both devices guarantee current limit accuracy down to ± 8%, increase design flexibility, and simplify bill of materials (BOMs). These hot-swappable load switches feature a programmable turn-on slew rate, provide ESD tolerance of 2 kV (human body model) and 0.75 kV (charged device model), and operate over a temperature range of -40 °C to +125 °C.
In summary, the newly released Vishay eFuses with programmable current limits and overvoltage protection offer a range of benefits for designers seeking to simplify their designs and minimize the need for external components. These devices provide precise control over power delivery to the load, swift fault responses, and enhanced safety and reliability in a wide range of applications.
