STMicroelectronics IPS4260LMTR

Overview

IPS4260LMTR from STMicroelectronics is a quad-channel low-side intelligent power switch IC designed for industrial I/O control, featuring four independent 50 V-rated power stages with integrated catch diodes, programmable current limiting (0.5–2 A per channel), <1 μs switching transitions, and comprehensive diagnostics including open-load, short-circuit, thermal shutdown, and wire-break protection. It operates across 8–50 V supply range and meets IEC 61131-2 and IEC 61000-4-x immunity standards.

For engineers reviewing the IPS4260LMTR datasheet, IPS4260LMTR pinout, IPS4260LMTR application, or IPS4260LMTR equivalent, this device supports high-reliability programmable logic controller (PLC) output modules, industrial PC peripheral I/O, CNC machine axis control, and safety-critical low-side switching where diagnostic coverage, fast demagnetization of inductive loads, and fault reporting via OL/FLT pins are essential.

Technical Context

The IPS4260LMTR integrates four independent N-channel DMOS power switches in low-side configuration, each with dedicated gate drivers, current-sense circuitry, and thermal monitoring. Its architecture enables parallel channel operation to reduce R_DS(ON)-related power dissipation and supports fast decay of inductive loads via externally configurable VZ clamp voltage paths (direct VCC tie, TVS-to-VCC, or TVS-to-PGND).

Protection logic is fully hardware-based: undervoltage lockout (V_UVON = 8 V, V_UVOFF = 7.5 V), junction thermal shutdown (T_JSD = 160 °C, hysteresis = 20 °C), and non-dissipative cut-off (programmable t_coff = R_CoD/120 ms) operate independently per channel. Diagnostics use open-drain outputs (INx, OL, FLT) with defined VOL ≤ 0.1 V at 5 mA load.

Key Specifications

Pinout & Package

IPS4260LMTR is housed in a thermally enhanced HTSSOP20 package (4.4 mm × 6.5 mm, 0.65 mm pitch) with exposed thermal pad (SGND-connected) for efficient heat dissipation in industrial ambient conditions.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad low-side intelligent power switch applications.

Compared with VNS3NV04PTR-E, IPS4260LMTR delivers full per-channel diagnostics and integrated protection in one package; versus IPS4262L, it adds programmable current limiting, configurable decay, and enhanced wire-break resilience - critical for safety-certified industrial systems.

Availability

IPS4260LMTR is available at Aetrix Electronics and suitable for programmable logic control, industrial PC peripheral I/O, and numerical control machines requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical deployments.

Supply support for IPS4260LMTR 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, specializing in automotive, industrial, and power management ICs with broad manufacturing scale and AEC-Q100/IEC 61508 qualification capabilities.

The IPS4260LMTR belongs to ST's Intelligent Power Switch family, engineered specifically for high-availability industrial control systems where reliability, diagnostic completeness, and compliance with IEC 61131-2 and IEC 61000-4-x standards are mandatory.

FAQ

What is the maximum continuous current per channel at 125 °C junction temperature?

The IPS4260LMTR delivers 0.5 A per channel continuously at T_J = 125 °C, verified by R_DS(ON) = 560 mΩ max and thermal resistance R_TH(J-C) = 3 °C/W. At 24 V supply, this corresponds to ≤6.7 W total power dissipation across all four channels with proper heatsinking.

How is fast demagnetization of inductive loads achieved without external components?

Fast demagnetization is enabled by connecting an external TVS diode between VZ pins and either VCC or PGND - not by internal circuitry alone. With VZ floating or tied directly to VCC, only slow decay (via integrated clamp diodes) is available. The TVS path provides a low-impedance route for stored inductor energy, achieving V_DEMAG = 58 V typical.

Can the ILIM and CoD pins be shared across multiple IPS4260LMTR devices on the same board?

No - ILIM and CoD pins must be individually wired to their own external resistors (R_ILIM, R_CoD) and cannot be paralleled. Sharing causes inaccurate current limiting and cut-off timing due to leakage currents and mismatched thresholds; STMicroelectronics explicitly prohibits this in Section 2.8 and 2.9 of DS14496.

What diagnostic functions are reported on the INx pins versus the FLT pin?

Each INx pin reports thermal shutdown or cut-off faults *only* for its corresponding channel (e.g., IN1 = OUT1 fault), while FLT is a wired-OR of all four channels' thermal and cut-off events. Both are open-drain outputs with VOL ≤ 0.1 V at 5 mA, but FLT provides system-level alerting whereas INx enables precise per-channel root-cause identification.