STMicroelectronics IPS160HTR

Overview

IPS160HTR from STMicroelectronics is a 60 V, 2.5 A rated single high-side switch in PowerSSO12 package, designed for industrial I/O control of resistive, capacitive, and inductive loads. It features 60 mΩ R_DS(on), non-dissipative cut-off protection with programmable delay (via external capacitor), integrated open-load-in-off-state and thermal shutdown diagnostics on a shared open-drain DIAG pin, and meets IEC 61131-2 requirements.

For engineers reviewing the IPS160HTR datasheet, IPS160HTR pinout, IPS160HTR application, or IPS160HTR equivalent, key selection criteria include output current limitation threshold (3.0–4.6 A activation), cut-off delay configurability (50 × C_CoD ±35%), ground/VCC disconnection protection, and diagnostic reporting behavior under overload, open-load, and junction overtemperature conditions.

Technical Context

The IPS160HTR implements a monolithic high-side power stage with active V_DS clamp for fast demagnetization of inductive loads, enabling controlled energy dissipation during turn-off without external diodes. Its logic interface accepts TTL/CMOS-compatible inputs (V_IL ≤ 0.8 V, V_IH ≥ 2.2 V) with internal weak pull-downs and supports undervoltage lock-out (6.5–7.8 V hysteresis).

Protection architecture integrates prioritized fault handling: thermal shutdown (T_JSD = 150–190 °C) overrides cut-off; cut-off (t_coff) limits duration of current limitation (I_LIM = 2.5–4.2 A); and open-load detection uses blanking time (t_BKT = 200 μs) to suppress false triggers during inductive decay. All faults drive the open-drain DIAG pin low.

Key Specifications

Pinout & Package

IPS160HTR is housed in PowerSSO12 package: 12-pin exposed-pad surface-mount with integrated heat sink (R_th(JC) = 0.4 °C/W). The exposed tab (pins 1, 12, and TAB) connects internally to V_CC for enhanced thermal performance and must be soldered to PCB copper pour.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side switch applications.

Compared with VNS3NV04PTR-E and TPS27081AQPWPRQ1, the IPS160HTR uniquely combines 60 V rating, programmable cut-off, active clamp, and IEC 61131-2-aligned diagnostics in a single PowerSSO12 device-reducing system-level complexity for industrial I/O where fault resilience and standard compliance are mandatory.

Availability

IPS160HTR is available at Aetrix Electronics and suitable for programmable logic controllers, industrial PC peripheral I/O, and numerical control machines requiring stable component supply across extended temperature and voltage ranges.

Supply support for IPS160HTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, delivering intelligent power, sensing, and control solutions for industrial, automotive, and consumer markets.

The IPS160HTR belongs to ST's Industrial High-Side Switch family, engineered specifically for robust, diagnostic-rich digital output stages in programmable controllers and factory automation equipment.

FAQ

What is the maximum inductive load energy the IPS160HTR can safely demagnetize?

The IPS160HTR supports up to 3000 mJ single-pulse avalanche energy at V_CC = 24 V and T_AMB = 125 °C, corresponding to ~2.1 H inductance at 2.5 A load current. For higher energy demands, an external Schottky diode between OUT and GND is required-but this disables the internal active clamp and increases board area and cost.

How does the CoD pin behave when left floating, and what is the recommended termination?

The CoD pin must never be left floating: it has no internal pull-up/down and undefined behavior may cause erratic cut-off timing or latch-up. ST specifies connecting it either to GND via a 1 kΩ resistor (to disable cut-off) or to GND via a capacitor (10–100 nF) to set t_coff. A 100 nF capacitor yields ~5 μs ±35% delay, suitable for most 24 V inductive loads.

Can the DIAG pin drive an LED directly, and what are the voltage/current limits?

Yes-the DIAG pin is an open-drain output rated for V_DIAG ≤ V_CC and I_DIAG ≤ 10 mA. With a 4.7 kΩ pull-up to 24 V, it sinks ~5 mA when active, sufficient to illuminate a standard LED. However, leakage current is ≤180 μA at V_CC ≤ 60 V, so ensure the LED forward voltage does not exceed V_CC − 1 V to maintain reliable low-state detection.

What thermal derating applies when using the PowerSSO12 package without thermal vias?

Without thermal vias, R_th(JA) = 117 °C/W. At T_AMB = 85 °C and T_J(MAX) = 150 °C, maximum allowable power dissipation is 0.5 W. This limits continuous output current to ~2.9 A (P = I²R = I² × 0.06 Ω), well above the 2.5 A I_LIM rating-confirming safe operation even in minimal copper layouts.