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Diodes Incorporated ZXMS81090SP-13
- Part No.:
- ZXMS81090SP-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
ZXMS81090SP-13.pdf
- Description:
- HIGH SIDE INTELLIFET SO-8EP T&R
- Quantity:
- Payment:
- Shipping:
Inventory:4,019
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Product details
Overview
ZXMS81090SP from Diodes Incorporated is a single-channel high-side power switch IC with integrated current and temperature sensing, 200 mΩ RDS(ON) at +150°C, 5–28 V operating range, and diagnostic IS output proportional to load current (KILIS = 1480). It enables 3.3 V/5 V logic-level drive, delivers 3 A nominal load current, and supports open-load detection, overtemperature auto-restart, and load-dump protection up to 41 V - used in automotive lighting and motor control modules requiring fault-aware power switching.
For engineers reviewing the ZXMS81090SP datasheet, ZXMS81090SP pinout, ZXMS81090SP application, or ZXMS81090SP equivalent, this device is selected for high-side switching where real-time current feedback, robust short-circuit handling, and stable undervoltage/overvoltage behavior are required - especially in 12 V grounded-load systems with incandescent lamps, DC motors, or LED arrays.
Technical Context
The ZXMS81090SP integrates a vertical n-channel power MOSFET with charge-pumped gate drive, enabling high-side operation without external bootstrap circuitry. Its internal analog current-sense amplifier provides linear voltage-drop regulation to maintain KILIS accuracy down to 50 mA load current, while dynamic and absolute overtemperature sensors trigger cycling or shutdown at ΔTJ(SW) = 80 K and TJ(SC) = +150°C.
Protection architecture includes active clamping on VS-to-GND (VS(AZ) = 47 V typ), OUT-to-GND (VDS(AZ) = 47 V typ), and IS pin (VIS(AZ) = 47 V typ), plus loss-of-ground detection via GND pin monitoring. Fault signaling occurs through defined IIS(FAULT) current on the IS pin during overload, short-circuit, overtemperature, or open-load conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 5 V to 28 V - supports full automotive battery range including cold-crank (5 V) and load-dump transients (up to 41 V protected) |
| RDS(ON) @ +150°C | 200 mΩ max - limits conduction loss to ≤1.8 W at 3 A, enabling compact thermal design on FR4 PCB |
| Nominal Load Current | 3 A - rated for continuous operation at Tamb = +85°C with 1.6 W power dissipation limit |
| Current-Sense Ratio | KILIS = 1480 - yields ~2.02 mA IS output at 3 A load, enabling direct ADC sampling without amplification |
| Standby Current | 0.5 µA max @ +85°C - ensures ultra-low quiescent draw in always-on vehicle modules |
| Fault Response Time | tOFF = 30–300 µs - fast turn-off supports EMC-compliant switching of inductive loads |
| Thermal Shutdown | TJ(SC) = +150°C with 20 K hysteresis - prevents permanent damage during sustained overload |
Pinout & Package
Package: SO-8EP (Type E) with exposed heatsink pad (EP) connected to VS pin - provides low RθJC = 5.2 °C/W for efficient heat transfer to PCB copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference and thermal path | Return for internal logic and protection circuits; must be low-impedance to enable loss-of-ground detection |
| 2 IN | Logic input control | Active-high enable (3.3 V/5 V compatible); controls MOSFET gate drive and diagnostic activation |
| 3 DEN | Diagnostic enable | High-impedance disables IS output; allows shared IS bus across multiple devices |
| 4 IS | Analog current-sense output | Outputs IIS = IL/1480 under normal operation; switches to IIS(FAULT) during faults |
| 5 NC | No connection | Not internally bonded - must remain unconnected per layout guidelines |
| 6, 7, 8 OUT | Power output terminals | Internally tied together - deliver switched VS to load; share current path and thermal mass |
| EP | Voltage supply / battery positive | Exposed pad tied to VS - primary thermal and current path; requires solder mask opening and thermal vias |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-dependent current limiting | IL5(SC) = 15 A at VDS = 5 V - adapts trip threshold to load impedance, preventing nuisance tripping on high-R loads |
| Open-load detection | Uses dual-mode sensing: current-sense zeroing in ON state + output voltage monitoring in OFF state - detects disconnected lamps or broken traces |
| Load-dump protection | Withstands ISO 7637-2 pulse 5a (41 V, 100 ms) via internal VS-to-GND clamp - eliminates need for external TVS on battery rail |
| Low-temperature drift sense | KILIS maintains ±5% accuracy over -40°C to +150°C - enables reliable diagnostics across automotive ambient extremes |
| Reverse battery tolerance | Body diode conducts at VDS(REV) = 0.65 V max at -2 A - allows safe reverse connection when paired with external 4.7 kΩ interface resistors |
Applications
| Automotive Lighting Control | DC Motor Power Management |
|---|---|
|
Use Scenario: Switching 12 V incandescent headlamps or LED matrix modules in body control units. IC Role / Device Role / Timing Role: High-side switch with real-time current monitoring and open-load fault reporting to MCU. Use Value: Detects filament burnout (open-load) before driver timeout, enabling immediate dashboard warning without external sense resistor. |
Use Scenario: Driving radiator cooling fans or HVAC blower motors in engine compartments. IC Role / Device Role / Timing Role: Protected high-side driver with inductive clamp and thermal cycling response. Use Value: Internal VDS(AZ) clamp absorbs flyback energy during turn-off, eliminating need for external freewheeling diode. |
| Industrial Solenoid Actuation | Smart Fuse Replacement |
|
Use Scenario: Controlling pneumatic valves or hydraulic solenoids in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Fault-aware power switch with overload current limiting and diagnostic feedback. Use Value: Limits peak inrush to 15 A during solenoid pull-in, then sustains hold current - avoids fuse replacement and downtime. |
Use Scenario: Replacing mechanical fuses in 24 V industrial control panels with electronic circuit protection. IC Role / Device Role / Timing Role: Self-protecting high-side switch with programmable trip timing via external RC network. Use Value: Provides precise 3 A continuous rating and 15 A short-circuit limit - matches legacy fuse profiles while adding telemetry. |
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 BTS50080-1TAD | Higher RDS(ON) (3.5 mΩ min), integrated SPI interface, no analog IS output | Requires MCU with SPI support; lacks direct current-sense voltage compatibility | Choose for digital bus-based systems needing status registers and configurable diagnostics |
| STMicroelectronics VNQ7050AJTR | Lower nominal current (2.5 A), no load-dump protection beyond 36 V, different pinout (PowerSSO-16) | Needs external TVS for 41 V load-dump; unsuitable for space-constrained SO-8 layouts | Choose when footprint flexibility exists and lower cost outweighs 41 V transient margin |
Compared with BTS50080-1TAD and VNQ7050AJTR, the ZXMS81090SP uniquely combines SO-8EP packaging, analog IS output with 1480 ratio, and native 41 V load-dump immunity - making it optimal for cost-sensitive, analog-diagnostic automotive modules where PCB area and external component count are critical.
Availability
ZXMS81090SP is available at Aetrix Electronics and suitable for automotive lighting control, industrial solenoid actuation, DC motor power management, and smart fuse replacement requiring stable component supply and long-term lifecycle assurance.
Supply support for ZXMS81090SP 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 solutions for automotive, industrial, computing, and consumer markets.
The ZXMS81090SP belongs to Diodes' IntelliFET® high-side switch family, engineered for automotive-grade reliability and diagnostic-rich power distribution in 12 V/24 V systems - emphasizing fault visibility, thermal resilience, and simplified system integration.
FAQ
What is the maximum load-dump voltage the ZXMS81090SP can withstand?
The ZXMS81090SP is rated for ISO 7637-2 load-dump pulses up to 41 V (VS(LD)), enforced by its internal VS-to-GND active clamp. This eliminates the need for external TVS diodes in standard automotive battery rail protection, provided RGND = 150 Ω is used per the datasheet recommendation.
How does open-load detection work in both ON and OFF states?
In ON state, open-load is detected by absence of expected IS current (IIS ≈ 0 mA despite IN = high); in OFF state, it's confirmed by measuring VOUT > VOL threshold using external comparator. The dual-mode method distinguishes true disconnection from low-current loads like LEDs.
Can the ZXMS81090SP drive inductive loads without external flyback components?
Yes - its internal active VDS(AZ) clamp (47 V typ) safely dissipates inductive ring-off energy during turn-off, limiting OUT swing below ground. This replaces external freewheeling diodes for typical 12 V solenoid or motor loads, reducing BOM count and board area.
What is the purpose of the DEN pin, and how should it be used in multi-device configurations?
The DEN pin enables high-impedance mode on the IS pin when pulled low, allowing multiple ZXMS81090SP devices to share a single analog current-sense line. This simplifies MCU ADC routing in multi-channel power distribution units - each device asserts IIS(FAULT) only when enabled, avoiding signal contention.
ZXMS81090SP-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Series:
- -
- 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:
- Logic
- Voltage - Load:
- 5V ~ 28V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 3A
- Rds On (Typ):
- 90mOhm
- 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:
- 8-SO-EP (Type E)
ZXMS81090SP-13 FAQ
1.How can I place an order for ZXMS81090SP-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ZXMS81090SP-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 ZXMS81090SP-13 reliable?
The price and inventory of ZXMS81090SP-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZXMS81090SP-13 is usually 5 days.
3.What payment methods are accepted for ZXMS81090SP-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZXMS81090SP-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZXMS81090SP-13?
ZXMS81090SP-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZXMS81090SP-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 ZXMS81090SP-13?
For technical support, including ZXMS81090SP-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZXMS81090SP-13 requirements.
6.How does Aetrix verify that ZXMS81090SP-13 is sourced from the original manufacturer or authorized distributors?
All ZXMS81090SP-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 ZXMS81090SP-13 meets industry standards.
7.What is the process for return or replacement of ZXMS81090SP-13?
All ZXMS81090SP-13 units undergo pre-shipment inspection (PSI). If there is an issue with ZXMS81090SP-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 ZXMS81090SP-13 part is unused and in its original packaging.
Return procedure for ZXMS81090SP-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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