IPS2050H, IPS2050H-32 High efficiency, high-side switch with extended diagnostics and smart driving for capacitive loads Features 8 V to 60 V operating supply voltage range Smart driving of capacitive load Under-voltage lock-out V over-voltage protection CC Fast demagnetization of inductive loads Per-channel overload and over-temperature protection Case over-temperature protection Per channel overload/over-temperature event diagnostic pins Ground disconnection protection Designed to meet IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5 Package PowerSSO-24 Applications Programmable logic control Vending machines Industrial PC peripheral input/output Numerical control machines General high-side switch applications Product status link Description IPS2050H The IPS2050H and IPS2050H-32 are dual high-side switch ICs able to drive IPS2050H-32 capacitive, resistive or inductive loads with one side connected to ground. The very low R ( 50 m up to T = 125 C) makes the IC suitable for DS-ON J Product label applications with up to 2.4 A / 5.6 A steady state operating current. Each output channel is independently protected against junction over-temperature events by a junction temperature sensor, and a further temperature sensor is included to monitor case temperature, so an overheated output channel can only be turned back ON when the case temperature returns below the reset temperature. The embedded per-channel overload protection circuit monitors the output current and, on triggering of the activation threshold (I ), starts modulating the impedance PK-X of the output switch to limit the output current to I , for both IC and load LIM-X protection. The IC offers two different sets of activation threshold and limitation levels (I , PKH-X I and I , I ) for smart driving of capacitive loads (such as bulb lamps) LIMH-X PKL-X LIML-X and loads with initial peak current requirements. The IC diagnostics is based on two FAULT pins (current source), one for each channel. Each FAULT pin is activated by an overload or an over-temperature event on the related channel. DS13779 - Rev 2 - December 2021 www.st.com For further information contact your local STMicroelectronics sales office.IPS2050H, IPS2050H-32 Block diagram 1 Block diagram Figure 1. IPS2050H, IPS2050H-32 block diagram V CC UNDERVOLTAGE LOCKOUT V CLAMP CC FLT X OUTPUT CLAMP IN CONTROL X LOGIC CURRENT LIMITATION OUT X JUNCTION TEMP I PDX DETECTION R PD x2 x2 CASE TEMP DETECTION GND DS13779 - Rev 2 page 2/28