STMicroelectronics IPS2050H and IPS2050H-32 dual high-side switches

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STMicroelectronics’ latest high-side switches, the IPS2050H and IPS2050H-32, permit two programmable current-limit values for smart driving of capacitive loads that draw high startup current.

The dual-channel switches have an input-voltage range from 8 to 60 V and can withstand up to 65 V on the input pin, enabling flexibility and robust performance in industrial applications. The integrated power MOSFET has low R_DS(on), resulting in high energy efficiency and low thermal dissipation. In addition, MOSFET single-pulse avalanche energy greater than 1 J at 2 A boosts the ability to handle inductive loads. There is also an active clamp for fast demagnetisation.

The IPS2050H allows the main current limit to be programmed up to 2.5 A for driving loads controlled by a PLC module and for use in equipment such as factory automation I/O peripherals, computer numerical control (CNC) machines and general driving of resistive, inductive and capacitive loads. The IPS2050H-32 has a higher maximum current limit of 5.7 A for use with unidirectional motors in equipment such as vending machines. The current-activation threshold and limit values are configurable using external resistors. An external capacitor sets the duration of the startup current limit for smart driving of capacitive loads.

Extensive built-in protection features and diagnostics enhance safety, including undervoltage lockout (UVLO) and protection against overvoltage, overload, short-circuit, ground disconnection and Vcc disconnection. Individual fault signalling for each channel indicates overload and junction overtemperature events. An additional sensor is provided for case overtemperature protection.

The switches meet IEC 61000-4-2 ESD, IEC 61000-4-4 and IEC 61000-4-5 specifications for ESD, fast-transient and surge immunity. Demonstration boards and software are available to help quickly evaluate the driving and diagnostic capabilities when connected to industrial loads.

For more information: www.st.com/ips.