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high-side

1% current sense amplifier ICs for high or low-side measurement

Rohm BD1422xG current sense amplifier

Rohm has created a set of six current sense amplifiers with AEC-Q100 qualification for automotive use. They work with external shunt resistors, and there are two basic types: one (BD1423xFVJ-C) that can sense across the common-mode range of -14 to +80V and runs from 2.7 to 18V, and the other (BD1422xG-C) that can sense across -14 to +40V and runs ...

1.5mΩ 48V automotive load switch

Infineon BTH50015-1LUA automotive load switch app

Infineon has revealed a 1.5mΩ protected load switch for 24V and 48V automotive systems. “With more than 1,000,000 switching cycles, the switches far exceed the average of conventional relays,” claimed Infineon. Called BTH50015-1LUA, it is functional across 12 to 54V, will work from 8 to 60V with some restrictions, and can survive over -0.3 to +70V. 1.5mΩ is a typical ...

125V fault-disconnect load switch

Infineon 125V load switch

Infineon has created a fast-disconnecting 125V load switch for fault protection in cordless power tools, e-bikes, battery-powered robots and battery vacuum cleaners. Packaged in a 5 x 6mm DSO-8, 1EDL8011 includes a charge-pump to drive the gate of the external high-side n-channel mosfet that does the switching. There are actually two charge pumps: a high-capacity on using the external capacitor ...

High-side power switch with smarter fusing

ST VNF9Q20F quad high side driver

STMicroelectronics has added I2T fusing to a automotive quad high-side power switch. As well as current-squared time fusing VNF9Q20F, as it will be known “responds within 100µs to turn off the [output] mosfet if excessive current is detected”, said ST. “Performing as an intelligent circuit breaker, [it] enhances board-net voltage stability and prevents PCB traces, connectors and wire harnesses from ...

0.6mΩ high-side switch handles up to 57A in 12V vehicle circuits

Infineon BTS50005-1LUA load switch app

Infineon Technologies has launched an ultra-low resistance high-side switch in a 9.9 x 11.7 x 2.3mm surface-mount package. For automotive use on 12V circuits, the IC is “ISO 26262-ready for supporting the integrator in evaluation of hardware element according to ISO 26262:2018 Clause 8-13”, said the company. Called BTS50005-1LUA, its nominal on-resistance is 0.6mΩ (1.1mΩ max at 150°C) and carrying ...