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NXP Semiconductors MC25XS6300EK
- Part No.:
- MC25XS6300EK
- Manufacturer:
- NXP Semiconductors
- Package:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MC25XS6300EK.pdf
- Description:
- IC PWR SWITCH HIGH SIDE 32HSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,171
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Product details
Overview
MC25XS6300EK from NXP Semiconductors is a triple-channel automotive high-side switch IC designed for LED and incandescent lamp control in body electronics modules. It delivers 25 mΩ RDS(on) per channel at TJ = 150 °C, supports 5.0 MHz daisy-chainable SPI interface, and integrates dynamic overcurrent threshold profiling, analog current sensing via CSNS pin, and Limp Home mode for fail-safe operation in lighting ECU designs.
For engineers reviewing the MC25XS6300EK datasheet, MC25XS6300EK pinout, MC25XS6300EK application, or MC25XS6300EK equivalent, this device serves as a robust, AEC-Q100 qualified solution for centralized automotive lighting with programmable diagnostics, extended voltage range (7.0–18 V), reverse polarity protection (−16 V), and thermal prewarning functionality.
Technical Context
The MC25XS6300EK implements three self-protected high-side power channels (OUT1/OUT2/OUT3) with active clamp circuitry for inductive load switching, each featuring independently programmable PWM duty cycle (8-bit resolution), open-load detection (ON/OFF state), and thermal shutdown with prewarning. Its SPI-controlled architecture enables synchronized multi-device daisy chaining and real-time fault reporting including short-to-battery, short-to-ground, overtemperature, and clock failure.
It operates across two supply domains: VBAT (7.0–18 V, up to 40 V transient) powers internal regulators, analog blocks, and gate drivers; VCC (4.5–5.5 V) supplies SPI I/Os, CLK, and OUT6 logic. The CSNS/SYNCB pins provide synchronized analog feedback of output current, battery voltage, or die temperature - all selectable via SPI register configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) per channel | Max 39.0 mΩ at TJ = 150 °C - ensures low conduction loss and thermal margin for 4.5 A continuous load per channel |
| Operating voltage range | 7.0–18 V functional; extends to 6.0–28 V in extended mode - supports cold-crank and load-dump conditions without reset |
| SPI interface speed | 5.0 MHz daisy-chainable - enables fast configuration and status polling across multiple devices on single bus |
| Overcurrent threshold profile | Dynamic, programmable - prevents false trip during lamp inrush while maintaining precise fault detection during steady-state |
| Sleep current | < 5.0 µA at VBAT = 12 V - meets ultra-low-power requirements for always-on automotive modules |
| Reverse polarity protection | −16 V - safeguards against battery misconnection without external components |
| Diagnostic coverage | Open-load (ON/OFF), short-to-battery, short-to-ground, overtemperature, clock-fail, undervoltage - full fault visibility via SPI register reads |
Pinout & Package
MC25XS6300EK uses a 32-pin SOICW-EP (exposed pad) package with thermal pad for enhanced power dissipation. Pin assignments are validated per NXP document MC12XS6D2 Rev. 4.0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1, OUT2, OUT3 | High-side power outputs | Three protected 25 mΩ channels driving lamps/LEDs; each includes active clamp, overcurrent, and thermal protection |
| CSB, SCLK, SI, SO | SPI interface signals | Chip-select, clock, input, and daisy-chainable output - enable configuration, status readback, and multi-device synchronization |
| CSNS, SYNCB | Analog current/voltage feedback | CSNS outputs SPI-programmable analog signal (load current, VBAT, or temp); SYNCB provides A/D conversion trigger for precise timing |
| IN1, IN2, IN3 | Direct control inputs | Wake-up and Fail-mode channel control - allow hardware-level override when SPI communication fails |
| LIMP | Fail-mode activation | Hardware-initiated entry into Limp Home mode - maintains partial functionality under MCU failure or communication loss |
| VBAT | Main power supply | Exposed pad connection to battery rail; powers internal regulator, analog circuits, and gate drivers; rated −16 V to 40 V |
| VCC | Digital logic supply | 5.0 V nominal supply for SPI I/Os, CLK, and OUT6 driver; must be present for bidirectional SPI communication |
| GND (Pins 9, 24) | Ground reference | Dual ground pins for logic/analog separation; require low-inductance PCB connection to minimize noise and ensure ESD integrity |
Key Features
| Feature | Design Value |
|---|---|
| Dual-domain power architecture | VBAT powers analog/power stages; VCC powers SPI I/Os - enables independent fault isolation and robustness against VCC rail disturbance |
| Programmable current sensing ratio | Configurable via SPI - allows precise load current monitoring across varying lamp types (LED vs. halogen) without external shunt scaling |
| Output edge shaping | Adjustable slew rate per channel - reduces electromagnetic emissions during switching transitions, easing EMC compliance |
| Fail operation mode | Retains controllability and protection after SPI loss - prevents total system failure by enabling direct input control and continued diagnostics |
| Compatible PCB footprint | Shared SOIC32-EP layout across 12XS6 family - simplifies platform design and enables variant interchangeability without board rework |
Applications
| Automotive Front Lighting Control | Interior Lamp Dimming System |
|---|---|
|
Use Scenario: Centralized control of LED headlamps and DRLs in modern body control modules (BCM). IC Role / Device Role / Timing Role: High-side switch managing three independent lamp zones with synchronized PWM dimming and real-time current feedback. Use Value: Enables adaptive lighting functions with diagnostic confidence - detects open-circuit LEDs before driver failure and reports faults via SPI to MCU. |
Use Scenario: Programmable dimming of dome, map, and courtesy lights using PWM-controlled incandescent or LED loads. IC Role / Device Role / Timing Role: Triple-channel driver delivering precise 8-bit PWM duty cycles per zone, synchronized via external clock or internal prescaler. Use Value: Eliminates need for discrete MOSFETs and current-sense amplifiers - reduces BOM count and improves thermal reliability in confined cabin modules. |
| Rear Combination Lamp Management | HID Xenon Ballast Interface |
|
Use Scenario: Driving brake, turn, and tail lamps in rear lamp assemblies with integrated diagnostics. IC Role / Device Role / Timing Role: Fault-tolerant high-side controller providing open-load detection in both ON and OFF states, plus thermal prewarning. Use Value: Detects filament breakage or connector disconnection early - triggers dashboard warning before safety-critical failure occurs. |
Use Scenario: Powering and monitoring HID ballasts requiring stable high-current startup and sustained operation. IC Role / Device Role / Timing Role: Robust 25 mΩ channel delivering controlled inrush current and continuous 4.5 A drive with active clamp suppression. Use Value: Prevents ballast damage from voltage spikes during ignition - clamps inductive kickback energy up to 40 mJ per channel. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC25XS6300BEK | Identical electrical specs and pinout; BEK version has higher RDS(on) max (41.0 mΩ vs. 39.0 mΩ) and wider IOCLO tolerance (14.5–21.0 A vs. 16.0–21.0 A) | Same automotive lighting use cases; preferred where wider overcurrent threshold margin is required for aging lamp loads | Select MC25XS6300BEK when designing for long-term reliability under elevated junction temperatures or variable load tolerances. |
| MC10XS6325EK | Triple-channel variant with mixed RDS(on): two 25 mΩ + one 10 mΩ channel; identical SPI, package, and feature set | Better suited for hybrid loads - e.g., high-current brake lamp + lower-current turn signal on same IC | Choose MC10XS6325EK when system requires asymmetric channel capability without adding second IC or compromising footprint compatibility. |
Compared with MC25XS6300BEK and MC10XS6325EK, the MC25XS6300EK offers the tightest RDS(on) specification and narrowest overcurrent threshold window - making it optimal for thermally constrained designs requiring maximum efficiency and precise fault discrimination.
Availability
MC25XS6300EK is available at Aetrix Electronics and suitable for automotive lighting control, body electronics ECUs, and centralized lamp management systems requiring stable component supply, AEC-Q100 qualification, and long-term production continuity.
Supply support for MC25XS6300EK 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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in automotive power management and smart analog integration.
The MC25XS6300EK belongs to NXP's 12XS6 family of SMARTMOS high-side switches - engineered specifically for centralized automotive lighting ECUs requiring scalable channel count, diagnostic richness, and software/hardware compatibility across variants.
FAQ
What is the maximum continuous output current supported by MC25XS6300EK per channel?
The MC25XS6300EK supports up to 4.5 A continuous output current per channel, validated under thermal constraints defined by RΘJA = 22 °C/W and TJ ≤ 150 °C. This rating assumes proper PCB copper area for the exposed pad and ambient temperature ≤ 125 °C. Peak pulsed current capability exceeds 9 A for short durations with active clamp engagement.
Does MC25XS6300EK support daisy-chained SPI communication?
Yes, MC25XS6300EK supports daisy-chained SPI communication at up to 5.0 MHz. The SO pin connects directly to the SI pin of the next device in chain, enabling configuration and status polling across multiple MC25XS6300EK units using a single MCU SPI port and chip select line.
How does the dynamic overcurrent threshold profile work in MC25XS6300EK?
The MC25XS6300EK implements a dynamic overcurrent threshold that starts high during initial turn-on to tolerate lamp inrush current, then decays to a lower steady-state level for precise fault detection. This behavior is fully programmable via SPI registers and eliminates false trips while maintaining protection integrity throughout the load cycle.
What protection features are integrated into MC25XS6300EK?
MC25XS6300EK integrates reverse polarity protection (−16 V), overtemperature shutdown with prewarning, undervoltage lockout, active clamp circuitry for inductive loads, short-to-battery and short-to-ground detection, and open-load diagnostics in both ON and OFF states - all reported via SPI fault registers.
Is MC25XS6300EK compatible with existing 12XS6 family software drivers?
Yes, MC25XS6300EK shares identical SPI register mapping, command structure, and diagnostic reporting format with other 12XS6 family members. NXP provides unified software drivers supporting MC25XS6300EK, MC10XS6325EK, and related variants - enabling seamless firmware reuse across lighting ECU platforms.
MC25XS6300EK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 4
- Ratio - Input:Output:
- -
- Output Configuration:
- High Side
- Output Type:
- -
- Interface:
- SPI
- Voltage - Load:
- 7V ~ 18V
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Current - Output (Max):
- 3.8A
- Rds On (Typ):
- 25mOhm
- Input Type:
- -
- Features:
- Status Flag
- Fault Protection:
- Open Load Detect, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HSOP
MC25XS6300EK FAQ
1.How can I place an order for MC25XS6300EK through Aetrix?
Please submit a Request for Quotation (RFQ) for MC25XS6300EK 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 MC25XS6300EK reliable?
The price and inventory of MC25XS6300EK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC25XS6300EK is usually 5 days.
3.What payment methods are accepted for MC25XS6300EK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC25XS6300EK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC25XS6300EK?
MC25XS6300EK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC25XS6300EK 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 MC25XS6300EK?
For technical support, including MC25XS6300EK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC25XS6300EK requirements.
6.How does Aetrix verify that MC25XS6300EK is sourced from the original manufacturer or authorized distributors?
All MC25XS6300EK 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 MC25XS6300EK meets industry standards.
7.What is the process for return or replacement of MC25XS6300EK?
All MC25XS6300EK units undergo pre-shipment inspection (PSI). If there is an issue with MC25XS6300EK, 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 MC25XS6300EK part is unused and in its original packaging.
Return procedure for MC25XS6300EK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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