STMicroelectronics L6375D013TR

Overview

L6375D013TR from STMicroelectronics is a 0.5 A high-side intelligent power switch in SO-20 package, designed for industrial automation load control. It features 8–35 V supply range, non-dissipative short-circuit protection with programmable t_ON, internal voltage clamping (53 V typ.), and dual diagnostic open-drain outputs (DIAG1/DIAG2) for real-time fault reporting in PLC I/O modules.

For engineers reviewing the L6375D013TR datasheet, L6375D013TR pinout, L6375D013TR application, or L6375D013TR equivalent, key selection considerations include its differential input with 1.3 V threshold and 400 mV hysteresis, output status LED driver capability, thermal shutdown at 150 °C, and IEC 61000-4-4 burst transient immunity.

Technical Context

The L6375D013TR integrates a high-side NDMOS power switch with internal current limiting, fast demagnetization via integrated 53 V Zener clamp, and dual independent diagnostics. Its input stage uses a TTL/CMOS-compatible comparator with programmable hysteresis (50–400 mV) and wide common-mode range (−7 V to V_S+0.3 V).

Short-circuit response is managed through non-dissipative cycling: output enters linear mode at 1.1 A (typ.), sustains t_ON = 1.28 μs/pF (set by external capacitor), then disables for t_OFF = 64×t_ON. Undervoltage lockout (7.5 V threshold, 500 mV hysteresis) and overtemperature shutdown (150 °C, 20 °C hysteresis) operate independently and feed into DIAG outputs.

Key Specifications

Pinout & Package

SO-20 wide-body surface-mount package (12.6 × 7.6 mm, 2.65 mm height), RoHS-compliant ECOPACK® grade, rated for −25 to +125 °C junction temperature.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VNS3NV04PTR-E and TPS27082LDR, the L6375D013TR uniquely combines 24 V bus compatibility, integrated 53 V clamp, non-dissipative fault recovery, and dual diagnostics-making it optimal for ruggedized PLC output stages where component count and field reliability are critical.

Availability

L6375D013TR is available at Aetrix Electronics and suitable for industrial automation, factory floor control systems, and PLC I/O modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for L6375D013TR 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 vertical manufacturing capabilities.

The L6375D013TR belongs to ST's Intelligent Power Switch (IPS) product line, engineered specifically for high-reliability industrial load driving with integrated protection, diagnostics, and energy-efficient switching.

FAQ

What is the maximum inductive energy the L6375D013TR can safely absorb during demagnetization?

The L6375D013TR absorbs up to 200 mJ of inductive energy at junction temperature 85 °C, enabled by its internal 53 V Zener clamp. This value is validated per datasheet Table 2 and applies to single-pulse conditions with t_p ≤ 300 ms. Exceeding this energy risks thermal damage even with proper PCB copper area.

How does the ON DELAY pin affect short-circuit behavior?

The ON DELAY pin sets t_ON = 1.28 μs/pF via an external capacitor (50 pF–2 nF). During short-circuit, the device limits current to 1.1 A for t_ON, then disables for t_OFF = 64×t_ON. Grounding the pin disables cycling but retains current limiting-useful for avoiding false triggers on cold lamps or capacitive loads.

Can the OUTPUT STATUS pin drive standard LEDs directly?

Yes-the OUTPUT STATUS pin sources 2–4 mA at 2.5 V drop (V_OSD ≤ 3 V), sufficient to drive standard 2 mA red/green LEDs without series resistor. At V_S = 24 V, a 10 kΩ pull-up ensures safe operation; verify LED forward voltage is ≤ 21 V to avoid exceeding V_OSD spec.

What diagnostic conditions cause both DIAG1 and DIAG2 to go low simultaneously?

Both DIAG1 and DIAG2 go low only during supply undervoltage (V_S < 7 V) or overtemperature (T_J > 150 °C), per Table 5. All other faults-open load, short-to-V_S, or short-to-ground-produce distinct DIAG1/DIAG2 combinations, enabling precise root-cause identification in firmware.