Diodes Incorporated ZXMS82180S14PQ-13

Overview

ZXMS82180S14PQ from Diodes Incorporated is a dual-channel high-side power switch in SO-14EP package, integrating n-channel vertical MOSFETs with charge-pump gate drive, temperature/current sensing, and diagnostic feedback. It operates from 5V–28V supply, delivers 2A nominal load current per channel, features 360mΩ R_DS(ON) at +150°C, and supports 3.3V/5V logic-level inputs for automotive body control modules driving incandescent lamps, motors, and LEDs.

For engineers reviewing the ZXMS82180S14PQ datasheet, ZXMS82180S14PQ pinout, ZXMS82180S14PQ application, or ZXMS82180S14PQ equivalent, key selection criteria include dual-channel independent overload protection, proportional analog current-sense output (K_ILIS = 550), open-load detection in ON/OFF states, and AEC-Q100 qualification for under-hood automotive use.

Technical Context

The device implements two independent high-side IntelliFET® power stages with monolithic n-channel vertical MOSFETs, each with dedicated INx input, integrated charge-pump gate driver, and thermal/current monitoring circuitry. Protection logic includes dynamic overtemperature cycling (∆T_J(SW) = 80K), absolute shutdown at T_J(SC) = +150°C to +200°C, and voltage-dependent current limiting (IL5(SC) = 8A at V_DS = 5V).

Diagnostic functionality uses a shared IS pin with DSEL-controlled channel selection and DEN-enabled multiplexing. The IS output provides linear current-sense (I_IS = I_L/K_ILIS) during normal operation, switches to I_IS(FAULT) > 5mA during overload/overtemperature/open-load faults, and drops near zero during OFF-state inductive ring-off or reverse conduction.

Key Specifications

Pinout & Package

Package: SO-14EP (exposed heatsink pad), RoHS-compliant, halogen-free, thermally optimized for PCB soldering with R_θJS = 4°C/W junction-to-solder point.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BTS716G and VNQ7E100AJ, ZXMS82180S14PQ uniquely combines dual-channel independence, 1:550 analog current-sense ratio with DSEL multiplexing, and SO-14EP thermal performance-making it optimal for space-constrained automotive modules requiring precise low-current diagnostics and minimal external components.

Availability

ZXMS82180S14PQ is available at Aetrix Electronics and suitable for automotive body control units, LED lighting drivers, and industrial PLC output modules requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for ZXMS82180S14PQ 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 manufacturer specializing in discrete, analog, and mixed-signal ICs for automotive, industrial, and consumer markets, with IATF 16949-certified manufacturing facilities.

ZXMS82180S14PQ belongs to the IntelliFET® high-side switch product line, engineered specifically for automotive power distribution and load control applications demanding integrated protection, diagnostics, and AEC-Q100 reliability.

FAQ

What logic voltage levels are compatible with the IN0 and IN1 inputs?

The IN0 and IN1 pins accept 3.3V and 5V CMOS logic levels directly, with guaranteed turn-on at VIN ≥ 4.5V and internal pull-down resistors ensuring default OFF state when left unconnected. Input current is limited to ±2mA, eliminating need for series resistors in standard microcontroller interfaces.

How does the ZXMS82180S14PQ handle inductive load turn-off?

It employs an active output clamp that limits V_DS to 41–53V during inductive ring-off, using the MOSFET's own channel to dissipate energy. This eliminates external flyback diodes while maintaining safe voltage stress, with clamping active only during OFF transitions to preserve efficiency during steady-state operation.

Can both channels be monitored simultaneously on the IS pin?

No - the IS pin is shared and multiplexed via the DSEL pin, allowing diagnostics for only one channel at a time. Attempting parallel connection of both OUT0 and OUT1 violates the device's independent protection architecture and voids fault isolation guarantees per channel.

What is the minimum detectable load current using the IS pin?

With K_ILIS = 550 and typical microcontroller ADC resolution of 12-bit @ 3.3V, the IS pin resolves down to 30mA load current (≈54.5nA sense current) while maintaining ±5% accuracy, enabled by internal voltage-drop regulation that stabilizes V_DS(NL) at 12–25mV even at ultra-low loads.