Diodes Incorporated ZXMS82180S14P-13

Overview

ZXMS82180S14P from Diodes Incorporated is a dual-channel high-side power switch in SO-14EP package, integrating n-channel vertical MOSFETs with charge-pumped gate drive, temperature/current sensing, and diagnostic feedback. It operates from 5V–28V supply, delivers ≤360mΩ R_DS(ON) at +150°C, supports 2A nominal load per channel, and provides proportional current-sense output (K_ILIS = 550) for real-time monitoring in automotive and industrial power distribution systems.

For engineers reviewing the ZXMS82180S14P datasheet, ZXMS82180S14P pinout, ZXMS82180S14P application, or ZXMS82180S14P equivalent, key selection criteria include dual-channel independent fault reporting, open-load detection in both ON/OFF states, ±0.5µA standby current at +85°C, and integrated load-dump protection up to 41V per ISO 7637.

Technical Context

The device implements two independent high-side switches with monolithic vertical n-channel MOSFETs, each featuring active gate charge pumping to sustain operation across 5V–28V input range without external bootstrap components. Its diagnostic architecture uses a single IS pin with DSEL/ DEN logic to multiplex channel-specific analog sense current or discrete fault signaling.

Protection is multi-layered: dynamic overtemperature cycling (∆T_J(SW) = 80K), absolute thermal shutdown (T_J(SC) = +150°C to +200°C), voltage-dependent current limiting (IL5(SC) = 8A at V_DS = 5V), and active clamping of VS-to-GND (V_S(AZ) = 47V typ) and OUT-to-GND during inductive ring-off.

Key Specifications

Pinout & Package

SO-14EP (exposed heatsink) package with thermal resistance R_θJS = 4°C/W, optimized for surface-mount soldering onto 2oz copper PCBs with vertical mounting for enhanced heat dissipation.

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, the ZXMS82180S14P uniquely balances dual-channel independence, analog current sensing with sub-µA standby, and integrated 41V load-dump protection-making it optimal for space-constrained, battery-sensitive automotive and industrial control nodes.

Availability

ZXMS82180S14P is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC output stages, commercial vehicle power distribution, and smart building lighting control requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant performance.

Supply support for ZXMS82180S14P 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 ICs for power management, signal integrity, and protection applications-with manufacturing certified to IATF 16949 for automotive-grade reliability.

The ZXMS82180S14P belongs to Diodes' IntelliFET® high-side switch family, engineered specifically for replacing electromechanical relays and discrete MOSFET solutions in 12V/24V automotive and industrial systems demanding integrated diagnostics and robust transient protection.

FAQ

What is the maximum continuous load current per channel at +105°C ambient?

At +105°C ambient on a 50mm × 50mm × 1.5mm FR4 PCB with 2oz copper, the ZXMS82180S14P sustains 2A per channel continuously-verified by thermal characterization in DS46096 Rev. 1-2 Section 5, where junction temperature remains below +150°C under these conditions with 28V supply and 12Ω resistive load.

How does open-load detection work in the OFF state?

In OFF state, open-load detection uses internal voltage comparators to monitor OUT pin voltage relative to VS. If OUT remains near VS (indicating no load path to ground), the device asserts I_IS(FAULT) on the IS pin-confirmed in Section 13.2 of DS46096, which specifies this behavior occurs when V_OUT > V_OL(OFF) (typically >10V) with VINx = L and VDEN = H.

Can both channels be used simultaneously with shared IS pin diagnostics?

No-while both channels operate independently, only one channel's current can be monitored on the IS pin at a time, selected by the DSEL pin. Diodes Incorporated explicitly warns against paralleling both channels due to unsynchronized thermal shutdown cycling, as stated in Section 12.2 of the datasheet.

What external components are mandatory for reverse-battery protection?

Reverse-battery protection requires external series resistors on IN0, IN1, DEN, and DSEL pins-recommended value 4.7kΩ per Diodes' application guidance in Figure 1 and Section 11.1-to limit fault current through ESD diodes when VS is reversed, preventing latch-up or permanent damage during -16V transients.