STMicroelectronics IPS1025H/HQ & IPS1025H-32/HQ-32

The IPS1025H and IPS1025H-32 are single high-side switch ICs able to drive capacitive, resistive or inductive loads with one side connected to ground. The very low R_DS-ON (≤ 25 mΩ up to T_J = 125 °C) makes the IC suitable for the applications with up to 2.4 A/ 5.6 A steady state operating current.
The output channel is protected against junction over-temperature events by a junction temperature sensor, and a further temperature sensor is included to monitor case temperature, so the overheated output channel can only be turned back ON when the case temperature returns below the reset temperature.

The embedded overload protection circuit monitors the output current and, on triggering of the activation threshold (I_PK), starts modulating the impedance of the output switch to limit the output current to I_LIM, for both IC and load protection.

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

The IC diagnostics is based on FLT₁ and FLT₂ pins (both current source); activated by respective overload or overtemperature events on the output channel.

Features​

• 8 V to 60 V operating supply voltage range
• Smart driving of capacitive load
• Under-voltage lock-out
• V_CC over-voltage protection
• Fast demagnetization of inductive loads
• Output overload and over-temperature protections
• Case over-temperature protection
• Overload event diagnostic pin
• Over-temperature event diagnostic pin
• Ground disconnection protection
• Designed to meet IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5
• Package PowerSSO-24

STEVAL-IFP046V1, Industrial digital output expansion board based on IPS1025H-32 in a QFN48L package

The STEVAL-IFP046V1 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 IPS1025H-32 single high-side smart power solid state relay, in a digital output module connected to 5.7 A industrial loads.

The STEVAL-IFP046V1 can interface with the microcontroller on the STM32 Nucleo via 5 kV optocouplers driven by GPIO pins and Arduino R3 connectors.

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

It is also possible to evaluate a system composed of up to four stacked STEVAL-IFP046V1 expansion boards.

As an example, a system with four STEVAL-IFP044V1 expansion boards allows you to evaluate an quad-channel digital output module.

Features

• Based on the IPS1025H-32 single high-side switch, which features:
  • Operating range up to 60 V
  • Low-power dissipation (R_ON(MAX) = 25 mΩ)
  • Fast decay for inductive loads
  • Smart driving of capacitive loads
  • Undervoltage lock-out
  • Overload and overtemperature 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 LED for output on/off status
• Red LEDs for overload and overheating diagnostics
• 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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