Diodes Incorporated ZXMS6003GTA

Overview

ZXMS6003GTA from Diodes Incorporated is a 60V N-channel self-protected enhancement-mode IntelliFET MOSFET in SOT223 package, functioning as a logic-level low-side power switch with programmable current limit, active overvoltage clamp, and analog status feedback. It delivers 1.4A continuous drain current at 5V input, features 500mΩ R_DS(ON), 550mJ unclamped inductive energy rating, and integrated thermal shutdown with auto-restart - deployed in 12V/24V DC industrial load switching.

For engineers reviewing the ZXMS6003GTA datasheet, ZXMS6003GTA pinout, ZXMS6003GTA application, or ZXMS6003GTA equivalent, key selection criteria include programmable current-limit threshold via external R_PROG, status-pin voltage interpretation (5V/2.5V/0.5V for normal/limit/shutdown), clamping energy capability, and thermal resistance (50°C/W on standard FR-4).

Technical Context

The ZXMS6003GTA integrates monolithic protection circuitry including active V_DS clamp (70V typ), overtemperature sensing (trip at +150°C), and overcurrent detection that deactivates below safe V_DS to preserve linear-mode conduction. Its gate drive is logic-compatible (V_IN(TH) = 1–2.1V) and supports direct µC interfacing without level-shifting.

Current limiting is set externally via resistor R_PROG between STATUS and IN pins, enabling adjustable trip thresholds from 0.2A to 1.2A depending on VIN and R_PROG value. The STATUS pin provides real-time analog feedback: 5V (normal), ~2.5V (current-limit active), or <1V (thermal shutdown), eliminating need for external sense resistors or comparators.

Key Specifications

Pinout & Package

Package: SOT223 (Type DN), surface-mount, lead-free, RoHS-compliant, 0.112g weight, UL 94V-0 molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTS716G and VNQ7050AJ, the ZXMS6003GTA uniquely combines single-channel simplicity, analog status reporting, and resistor-programmable current limit - making it optimal for cost-sensitive, space-constrained designs requiring per-device diagnostic visibility without communication overhead.

Availability

ZXMS6003GTA is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, smart power outlets, and medical equipment power sequencing requiring stable component supply and long-term lifecycle support.

Supply support for ZXMS6003GTA 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal devices, with design centers across Asia, Europe, and the US, serving industrial, computing, consumer, and automotive markets.

The ZXMS6003GTA belongs to Diodes' IntelliFET™ family - engineered for robust, self-protected low-side switching in harsh environments where reliability, diagnostic capability, and simplified system design are critical.

FAQ

What is the minimum input voltage required to activate all protection functions?

The ZXMS6003GTA requires ≥4.5V on the IN pin to guarantee full operation of overtemperature, overcurrent, and active clamp protection. Below this threshold, protection may be degraded or disabled per datasheet Note 8 - design must ensure stable VIN ≥4.5V during fault conditions.

How does the STATUS pin behave during inductive turn-off?

During inductive turn-off, the STATUS pin remains at ~5V until V_DS rises above clamping threshold; then it drops to ~2.5V while clamping is active. It only falls below 1V if junction temperature exceeds +150°C - confirming that STATUS reflects both electrical and thermal fault states independently.

Can ZXMS6003GTA replace a mechanical relay in lamp-switching applications?

Yes - its 1.4A continuous rating, 550mJ E_AS, and programmable inrush current limit make it suitable for tungsten lamp loads. Unlike relays, it eliminates contact bounce, arc erosion, and coil power consumption, while STATUS pin enables real-time lamp health monitoring via voltage trend analysis.

What is the recommended R_PROG value for 800mA current limiting at 10V input?

Per datasheet Figure 7 and Table on page 5, an R_PROG of 20kΩ yields ID(LIM) ≈ 0.9A at VIN = 10V. For precise 800mA targeting, use 22kΩ - verified by interpolation of test data showing 0.7A at 24kΩ and 0.9A at 20kΩ under identical conditions.