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Diodes Incorporated ZXMS81200SPQ-13
- Part No.:
- ZXMS81200SPQ-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
ZXMS81200SPQ-13.pdf
- Description:
- HIGH SIDE INTELLIFET SO-8EP T&R
- Quantity:
- Payment:
- Shipping:
Inventory:1,543
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Product details
Overview
ZXMS81200SPQ from Diodes Incorporated is a single-channel automotive-grade high-side power switch in SO-8EP package, integrating n-channel vertical MOSFET, charge-pumped gate drive, temperature/current sensing, and diagnostic current-sense output (KILIS = 300). It operates from 5V–28V supply, delivers 1.5A nominal load current with 400mΩ RDS(ON) at +150°C, and supports 3.3V/5V logic-level enable for incandescent lamps and motors in 12V grounded-load systems.
For engineers reviewing the ZXMS81200SPQ datasheet, ZXMS81200SPQ pinout, ZXMS81200SPQ application, or ZXMS81200SPQ equivalent, key selection criteria include its integrated open-load detection (ON/OFF state), proportional analog IS output with linear regulation down to 25mA, AEC-Q100 qualification, and defined fault signaling for overload, overtemperature, short-circuit, and loss-of-ground conditions.
Technical Context
The ZXMS81200SPQ implements a monolithic high-side switch architecture with internal charge pump enabling full enhancement of the n-channel MOSFET without external bootstrap components. Its protection system combines voltage-dependent current limiting, dynamic ∆TJ(SW)-based thermal cycling (80K threshold), and absolute TJ(SC) shutdown (+150°C to +200°C range), all coordinated through on-die sensors.
Diagnostic functionality is implemented via dual-mode IS pin operation: analog current output (IIS = IL/300) enabled by DEN, and fault-current mode (IIS(FAULT)) triggered during overload, overtemperature, short-circuit, or open-load in OFF state. Open-load detection uses both load-current sensing in ON state and output-voltage monitoring in OFF state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 5V to 28V - Supports full automotive battery range including cold-crank (5V) and load-dump transients (up to 41V clamped) |
| RDS(ON) @ +150°C | 400mΩ - Ensures ≤0.9W conduction loss at 1.5A nominal load under worst-case thermal conditions |
| Current Sense Ratio | KILIS = 300 - Delivers precise 3.33µA/mA analog sense current for accurate low-current diagnostics (down to 25mA) |
| Standby Current | 0.5µA @ +85°C - Minimizes parasitic drain in always-on vehicle modules (e.g., body control units) |
| Fault Detection | Dual-mode IS output - Provides distinct analog sense and defined fault-current signals for microcontroller interpretation |
| Thermal Protection | Dynamic ∆TJ(SW) = 80K + Absolute TJ(SC) = +150°C - Enables safe cyclic operation during sustained overload without latch-off |
| AEC-Q100 Grade | Qualified to Grade 1 (−40°C to +125°C ambient) - Validated for engine bay and chassis-mounted automotive applications |
Pinout & Package
Package: SO-8EP (Type E) with exposed heatsink pad (EP) electrically connected to VS pin for enhanced thermal performance (RθJC = 5.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference | Return path for logic, diagnostic, and protection circuitry; loss-of-ground triggers automatic shutdown |
| 2 IN | Logic input | Active-high 3.3V/5V-compatible enable signal; controls MOSFET gate drive via internal charge pump |
| 3 DEN | Diagnostic enable | Activates IS pin analog mode; allows wired-OR connection of multiple ZXMS81200SPQ devices to shared ADC input |
| 4 IS | Diagnostic output | Current-source output: IIS = IL/300 (normal) or IIS(FAULT) (fault); requires external pull-up for voltage readout |
| 5 NC | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
| 6,7,8 OUT | Power output | Parallel-connected source terminals delivering switched load current; tied directly to load return path |
| EP (VS) | Supply input | Exposed pad connected to battery positive; serves as primary thermal path and power input node |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-dependent current limiting | Adjusts IL(SC) from 6A to 12A based on VDS, preventing thermal runaway during partial shorts |
| Open-load detection (dual-state) | Uses IS current in ON state AND OUT voltage monitoring in OFF state-enables reliable lamp-burnout detection |
| Low-IL voltage-drop regulation | Maintains VDS(NL) = 12–25mV at IL = 25mA, preserving KILIS accuracy for microamp-level diagnostics |
| Active VS-to-GND clamp | Clamps transients to 41–53V (VS(AZ)) protecting GND pin and upstream logic from ISO 7637 load-dump events |
| Loss-of-ground protection | Shuts down output when GND pin disconnects-prevents uncontrolled load activation in wiring fault scenarios |
Applications
| Automotive Lighting Control | Engine Bay Power Distribution |
|---|---|
Use Scenario: Driving halogen headlamps and fog lamps in modern BCMs with real-time burn-out detection. IC Role / Device Role / Timing Role: High-side switch providing controlled 12V delivery with integrated open-load diagnosis and PWM-compatible slew rates (0.1–1.0 V/µs). Use Value: Eliminates discrete fuse + relay + sense resistor solution; reduces BOM count by 4 components while enabling lamp-status reporting via IS pin. | Use Scenario: Supplying power to radiator fans, fuel pumps, and HVAC blowers with transient immunity and thermal cycling resilience. IC Role / Device Role / Timing Role: Fault-tolerant high-side driver with 41V load-dump clamping, dynamic thermal cycling, and 6A short-circuit current limit. Use Value: Survives repeated 12V battery reversal and ISO 7637-2 pulse 5a (load dump) without external TVS, reducing PCB area by 35%. |
| Industrial Motor Start/Stop | Commercial Vehicle Body Electronics |
Use Scenario: Controlling 24V DC brush motors in automated gates, conveyor systems, and valve actuators. IC Role / Device Role / Timing Role: Inductive load switch with active VDS(AZ) clamp (41–53V), dV/dt-controlled turn-OFF (0.2–1.0 V/µs), and inverse-current blocking. Use Value: Suppresses negative ringback below ground without external flyback diode; extends MOSFET lifetime by eliminating avalanche stress. | Use Scenario: Managing auxiliary loads (interior lighting, door locks, mirror heaters) in trucks and buses with extended temperature range. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 high-side switch supporting −40°C to +125°C ambient, 0.5µA standby current, and PPAP-compliant traceability. Use Value: Meets OEM requirements for long-life embedded control modules with zero field returns due to undervoltage or thermal misbehavior. |
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 BTS716G | Higher RDS(ON) (500mΩ @ +150°C), no integrated open-load detection in OFF state, requires external sense resistor | Supports higher peak current (12A) but lacks dual-state open-load diagnosis and low-IL regulation | Select for cost-sensitive 12V systems where IS-pin integration is unnecessary and higher conduction loss is acceptable |
| ONSEMI NCV8460A | Lower nominal current (1.2A), no charge pump (requires external 10V gate drive), fixed 5.5V UVLO threshold | Offers faster tOFF (100µs) but lacks load-dump clamping and diagnostic enable (DEN) pin | Select when gate drive voltage is available externally and ISO 7637 immunity is handled at system level |
Compared with BTS716G and NCV8460A, the ZXMS81200SPQ uniquely integrates proportional current sensing with open-load detection in both ON and OFF states, maintains sense accuracy down to 25mA via VDS(NL) regulation, and provides built-in 41V load-dump clamping-reducing external component count by up to 7 parts per channel.
Availability
ZXMS81200SPQ is available at Aetrix Electronics and suitable for automotive lighting control, engine bay power distribution, industrial motor start/stop, and commercial vehicle body electronics requiring stable component supply across extended temperature ranges and stringent reliability standards.
Supply support for ZXMS81200SPQ 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 ICs, specializing in high-reliability power management, signal integrity, and protection solutions for automotive, industrial, and computing markets.
The ZXMS81200SPQ belongs to Diodes' IntelliFET® high-side switch product line, engineered specifically for AEC-Q100-compliant automotive applications demanding integrated diagnostics, robust transient protection, and simplified system-level fault reporting.
FAQ
What is the function of the DEN pin on the ZXMS81200SPQ?
The DEN (Diagnostic Enable) pin activates the analog current-sense mode of the IS pin. When pulled high, IS outputs IL/300; when low or floating, IS enters high-impedance state. This enables shared ADC inputs across multiple channels and prevents loading errors during system diagnostics or sleep modes.
How does the ZXMS81200SPQ handle load-dump transients?
The ZXMS81200SPQ incorporates an active VS-to-GND clamp that limits transients to 41–53V (VS(AZ)) during ISO 7637-2 Pulse 5a events. Excess energy is dissipated across external RGND (recommended 150Ω), protecting internal circuitry without requiring external TVS diodes in most 12V automotive designs.
Can the ZXMS81200SPQ drive inductive loads without an external flyback diode?
Yes-the device features an active VDS(AZ) clamp (41–53V) that safely absorbs inductive kickback energy during turn-OFF. This eliminates the need for external flyback diodes in typical 12V/24V motor and solenoid applications, reducing board space and improving EMC performance.
What defines "open-load" detection behavior in ON vs. OFF states?
In ON state, open-load is detected via absence of expected IS current (IL/300); in OFF state, it is detected by measuring OUT voltage-if OUT remains near VS instead of sinking to GND, the load is disconnected. Both methods are implemented internally and reported via IS pin fault current.
ZXMS81200SPQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Series:
- INTELLIFET®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- -
- Voltage - Load:
- 28V ~ 28V
- Voltage - Supply (Vcc/Vdd):
- 5V ~ Not Required
- Current - Output (Max):
- 1.5A
- Rds On (Typ):
- 200mOhm
- Input Type:
- Non-Inverting
- Features:
- Slew Rate Controlled
- Fault Protection:
- Current Limiting (Adjustable), Open Load Detect, 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:
- 8-SO-EP (Type E)
ZXMS81200SPQ-13 FAQ
1.How can I place an order for ZXMS81200SPQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXMS81200SPQ-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 ZXMS81200SPQ-13 reliable?
The price and inventory of ZXMS81200SPQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXMS81200SPQ-13 is usually 5 days.
3.What payment methods are accepted for ZXMS81200SPQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXMS81200SPQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXMS81200SPQ-13?
ZXMS81200SPQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXMS81200SPQ-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 ZXMS81200SPQ-13?
For technical support, including ZXMS81200SPQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXMS81200SPQ-13 requirements.
6.How does Aetrix verify that ZXMS81200SPQ-13 is sourced from the original manufacturer or authorized distributors?
All ZXMS81200SPQ-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 ZXMS81200SPQ-13 meets industry standards.
7.What is the process for return or replacement of ZXMS81200SPQ-13?
All ZXMS81200SPQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with ZXMS81200SPQ-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 ZXMS81200SPQ-13 part is unused and in its original packaging.
Return procedure for ZXMS81200SPQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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