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Diodes Incorporated ZXMS82120S14P-13
- Part No.:
- ZXMS82120S14P-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 14-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
ZXMS82120S14P-13.pdf
- Description:
- HIGH SIDE INTELLIFET SO-14EP T&R
- Quantity:
- Payment:
- Shipping:
Inventory:1,430
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Product details
Overview
ZXMS82120S14P 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 2.5A nominal load current per channel, features 240mΩ RDS(ON) at +150°C, and supports 3.3V/5V logic-level inputs for automotive and industrial load switching.
For engineers reviewing the ZXMS82120S14P datasheet, ZXMS82120S14P pinout, ZXMS82120S14P application, or ZXMS82120S14P equivalent, this device is selected for high-reliability 12V grounded-load control requiring real-time current sense, open-load detection, overtemperature auto-restart, and load-dump protection up to 41V.
Technical Context
The ZXMS82120S14P implements two independent high-side switches with monolithic vertical power MOSFETs, each driven by an internal charge pump enabling full enhancement at low supply voltages. Its diagnostic architecture uses a single IS pin with DSEL and DEN logic to select channel and enable analog current-sense output (KILIS = 550) or fault signaling.
Protection functions include voltage-dependent current limiting, dynamic and absolute overtemperature shutdown (TJ(SC) = +150°C), loss-of-ground detection, reverse-battery handling via external resistors, and active VS-to-GND clamping (VS(AZ) = 47V typ). The device maintains VDS(NL) regulation down to 30mA for accurate low-current sensing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 28V - Supports standard 12V automotive and industrial rails with extended operation up to 28V. |
| RDS(ON) (max, +150°C) | 240mΩ - Enables 2.5A continuous per channel with <1.5W power dissipation at +85°C ambient. |
| Current Sense Ratio KILIS | 550 - Delivers precise 1.82µA/A analog sense current on IS pin for MCU ADC monitoring. |
| Load-Dump Protection | 41V - Withstands ISO 7637-2 pulse 5a transients without external TVS diodes. |
| Standby Current IS(OFF) | 0.5µA max at +85°C - Minimizes battery drain in always-on vehicle modules. |
| Turn-On/Off Time | 90µs / 170µs typical - Provides controlled slew rates (0.25/0.45 V/µs) for EMC-compliant switching. |
| Overtemperature Threshold | +150°C absolute shutdown - Prevents thermal runaway during sustained overload or poor heatsinking. |
Pinout & Package
Package: SO-14EP (exposed pad), thermally enhanced for PCB soldering; RθJS = 4°C/W junction-to-solder point.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference and thermal path | Primary return for logic, diagnostics, and power stage; exposed pad must be soldered for thermal performance. |
| 2 IN0 | Channel 0 enable input | Active-high 3.3V/5V logic input; controls OUT0 independently of IN1. |
| 3 DEN | Diagnostic enable | High enables IS pin; low places IS in high-impedance state for multi-device sharing. |
| 4 IS | Analog diagnostic output | Outputs proportional current (IOUT/550) or fault current (IIS(FAULT)) based on DSEL and operating condition. |
| 5 DSEL | Channel select for IS | Low selects OUT0 sensing; high selects OUT1 sensing - allows shared IS pin across both channels. |
| 6 IN1 | Channel 1 enable input | Independent active-high logic input for OUT1; no cross-talk with IN0. |
| 7, 11 NC | No connection | Internally unconnected; must remain floating or tied to GND per layout guidelines. |
| 8, 9, 10 OUT1 | Channel 1 output terminal | Internally paralleled pins deliver full rated current to load; must be connected together externally. |
| 12, 13, 14 OUT0 | Channel 0 output terminal | Internally paralleled pins ensure low-inductance, high-current path to load; connect together externally. |
| EP VS | Power supply input | Exposed pad serves as primary VS connection; provides low-impedance path and thermal conduction to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-dependent current limiting | Adjusts IL(SC) from 10A at VDS = 5V to 7A at VDS = 28V - prevents destructive energy buildup during short circuits. |
| Open-load detection | Distinguishes OFF-state open load (via VOUT monitoring) from ON-state open load (via IIS ≈ 0) - eliminates false fault reporting. |
| Output clamp voltage VDS(AZ) | 47V typical - limits inductive kickback without external snubbers, protecting MOSFET and downstream circuitry. |
| Undervoltage hysteresis | 0.85V - ensures clean turn-on/turn-off transition between 3.3V and 4.2V thresholds, avoiding oscillation near UVLO edge. |
| Loss-of-ground protection | Auto-shutdown when GND pin disconnects - prevents latch-up and uncontrolled output behavior in wiring fault conditions. |
Applications
| Automotive Body Control Module | Industrial PLC Output Stage |
|---|---|
|
Use Scenario: Controlling headlamp, fog lamp, and interior lighting loads in modern BCMs with CAN/FlexRay communication. IC Role / Device Role / Timing Role: Dual high-side switch providing independent ON/OFF control, real-time current monitoring, and open-load diagnostics for each lamp circuit. Use Value: Replaces electromechanical relays and discrete FET+driver solutions while enabling predictive maintenance via load-current trend analysis. |
Use Scenario: Driving solenoid valves, indicator LEDs, and small DC motors in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: High-side interface between microcontroller GPIO and 24V industrial loads, with built-in short-circuit and overtemperature recovery. Use Value: Eliminates need for external current-sense amplifiers and thermal shutdown ICs, reducing BOM count and board area by >40%. |
| Smart Fuse Replacement | Automotive HVAC Blower Control |
|
Use Scenario: Solid-state replacement for blade-type fuses in 12V/24V vehicle power distribution units with electronic trip coordination. IC Role / Device Role / Timing Role: Precision current-limiting switch with programmable fault reporting via IS pin, supporting selective load shedding under ECU command. Use Value: Enables reversible overcurrent protection (no fuse replacement) and real-time load health logging for fleet telematics. |
Use Scenario: Variable-speed control of HVAC blower motors using PWM-modulated high-side switching in passenger compartment modules. IC Role / Device Role / Timing Role: High-side driver with fast tON/tOFF (90/170µs) and low RDS(ON) to minimize conduction losses at 2.5A continuous. Use Value: Reduces audible PWM noise and improves motor efficiency versus mechanical relay-based speed staging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Infineon BTS7004-1EPP | Single-channel, higher RDS(ON) (300mΩ), no integrated current-sense ratio - requires external amplifier. | Lacks dual-channel integration and analog IS output; suited for simpler on/off-only loads. | Select when cost sensitivity outweighs diagnostic capability and channel density requirements. |
| STMicroelectronics VNQ7050AJTR | Quad-channel, lower nominal current (1.7A), fixed 1:2000 current sense ratio - less resolution at low loads. | Higher channel count but reduced thermal margin per channel; limited to ≤18V operation. | Prefer for space-constrained multi-load systems where per-channel current is ≤1.5A and diagnostics are secondary. |
Compared with BTS7004-1EPP and VNQ7050AJTR, the ZXMS82120S14P uniquely combines dual-channel integration, 550:1 high-resolution current sensing, 41V load-dump tolerance, and SO-14EP thermal performance - making it optimal for automotive body electronics requiring compact, self-diagnosing high-side control.
Availability
ZXMS82120S14P is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, and smart fuse replacement systems requiring stable component supply, AEC-Q100-aligned reliability, and long-term production continuity.
Supply support for ZXMS82120S14P 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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.
The ZXMS82120S14P belongs to Diodes' IntelliFET® family of intelligent high-side switches, designed specifically for automotive-grade load switching with integrated diagnostics, robust transient protection, and thermal resilience in harsh environments.
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 ZXMS82120S14P delivers 2.5A per channel continuously - verified by thermal characterization in DS46095 Rev. 1-2 Section 5, with RDS(ON) derated to 200mΩ at +150°C junction temperature.
How does the IS pin distinguish between normal operation and fault conditions?
The IS pin outputs IOUT/550 during normal conduction, drops to ~0µA during ON-state open load or OFF-state inductive ring-off, and sources a defined IIS(FAULT) (>100µA) during overload, overtemperature, short-circuit, or OFF-state open load - per Table 2 and Section 13 of DS46095.
Can ZXMS82120S14P drive inductive loads without external flyback diodes?
Yes - its integrated active output clamp limits VDS(AZ) to 47V typical, safely dissipating inductive energy during turn-off without external components; validated per Figure 6–8 and Section 7 of DS46095 for RL and L loads up to specified energy limits.
Is the SO-14EP exposed pad electrically isolated from other pins?
No - the exposed pad (EP) is internally connected to VS (pin 14 function), serving as both primary power input and thermal conduction path; it must be soldered to a large copper pour tied to the VS net, not left floating or grounded.
ZXMS82120S14P-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 2
- Ratio - Input:Output:
- 2 x 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- Logic
- Voltage - Load:
- 5V ~ 28V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2.5A
- Rds On (Typ):
- 100mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- Current Limiting (Fixed), Open Load Detect, Over Load, Over Temperature, Over Voltage, Reverse Battery, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO-EP
ZXMS82120S14P-13 FAQ
1.How can I place an order for ZXMS82120S14P-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXMS82120S14P-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ZXMS82120S14P-13 reliable?
The price and inventory of ZXMS82120S14P-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXMS82120S14P-13 is usually 5 days.
3.What payment methods are accepted for ZXMS82120S14P-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXMS82120S14P-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXMS82120S14P-13?
ZXMS82120S14P-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXMS82120S14P-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ZXMS82120S14P-13?
For technical support, including ZXMS82120S14P-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXMS82120S14P-13 requirements.
6.How does Aetrix verify that ZXMS82120S14P-13 is sourced from the original manufacturer or authorized distributors?
All ZXMS82120S14P-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ZXMS82120S14P-13 meets industry standards.
7.What is the process for return or replacement of ZXMS82120S14P-13?
All ZXMS82120S14P-13 units undergo pre-shipment inspection (PSI). If there is an issue with ZXMS82120S14P-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ZXMS82120S14P-13 part is unused and in its original packaging.
Return procedure for ZXMS82120S14P-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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