STMicroelectronics IPS2050HQ-32

The IPS2050H/HQ and IPS2050H-32/HQ-32 are dual high-side switch ICs able to drive capacitive, resistive or inductive loads with one side connected to ground.

The very low R_DS-ON (≤ 50 mΩ up to T_J = 125 °C) makes the IC suitable for applications with up to 2.4 A (IPS2050H/HQ) or 5.6 A (IPS2050H-32/HQ-32) 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_PK-X), starts modulating the impedance of the output switch to limit the output current to ILIM-X, for both IC and load protection.

The IC offers two different sets of activation threshold and limitation levels (I_PKH-X, I_LIMH-X and I_PKL-X, I_LIML-X) for smart driving of capacitive loads (such as bulb lamps) 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.

Features​

• 8 V to 60 V operating supply voltage range
• Operating output current: 2.4 A (IPS2050H/HQ) or 5.6 A (IPS2050H-32/HQ-32) per channel
• Smart driving of capacitive load
• Fast demagnetization of inductive loads
• Under-voltage lock-out
• VCC over-voltage protection
• Per-channel overload and over-temperature protection
• Case over-temperature protection
• Ground disconnection protection
• Per channel overload/over-temperature event diagnostic pins
• Designed to meet IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5
• Packages: PowerSSO-24 and QFN48L 8x6x0.9 mm

STEVAL-IFP044V1, Industrial digital output expansion board based on IPS2050H-32 in a QFN48L package

The STEVAL-IFP044V1 is an industrial digital output expansion board. It provides a powerful and flexible environment for the evaluation of the driving and diagnostic capabilities of the IPS2050H-32 (dual high-side smart power solid state relay) in a digital output module connected to 5.7 A (max.) industrial loads.

The STEVAL-IFP044V1 can interface with the microcontroller on the STM32 Nucleo via 5 kV optocouplers driven by GPIO pins, Arduino UNO R3 (default configuration) and ST morpho (optional, not mounted) connectors.

The expansion board can be connected to either a NUCLEO-F401RE or NUCLEO-G431RB development board.

It is also possible to evaluate a system composed by up to four stacked STEVAL-IFP044V1 expansion boards.

As an example, a system with four STEVAL-IFP044V1 expansion boards allows you to evaluate an eight-channel digital output module with 5.7 A (max.) capability each.

Features

• Based on IPS2050H-32 dual high-side switch, which features:
  • Operating range up to 60 V/5.7 A
  • Low power dissipation (R_ON(MAX) = 50 mΩ)
  • Fast decay for inductive loads
  • Smart driving of capacitive load
  • Under-voltage lock-out
  • Per-channel overload and over-temperature protections
  • QFN48L 8x6 mm package
• Application board operating range: 8 to 33 V/0 to 5.7 A
• Extended voltage operating range (J3 open) up to 60 V
• Green LEDs for output on/off status
• Red LEDs for per-channel diagnostic (overload and overheating)
• 5 kV galvanic isolation
• Supply rail reverse polarity protection
• Compatible with STM32 Nucleo development boards
• Equipped with Arduino UNO R3 connectors
• CE certified
• RoHS and China RoHS compliant
• Not FCC approved for resale

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