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NXP Semiconductors MC40XS6500DEK
- Part No.:
- MC40XS6500DEK
- Manufacturer:
- NXP Semiconductors
- Package:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Datasheet:
-
MC40XS6500DEK.pdf
- Description:
- LIGHTING ESWITCH PENTA 40MOHM
- Quantity:
- Payment:
- Shipping:
Inventory:4,440
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Product details
Overview
MC40XS6500DEK from NXP Semiconductors is a penta-channel 40 mΩ automotive high-side switch IC for LED and incandescent lighting control, featuring SPI 5.0 MHz daisy-chain interface, programmable current sensing (1:100–1:1000), dynamic overcurrent threshold profiling, -16 V reverse polarity protection, and 7.0–18 V functional operating range. It serves as a self-protected power driver in centralized body control modules for exterior lighting.
For engineers reviewing the MC40XS6500DEK datasheet, MC40XS6500DEK pinout, MC40XS6500DEK application, or MC40XS6500DEK equivalent, key selection considerations include channel count (5), RDS(on) (40 mΩ per channel), fail-safe direct-input control (IN1–IN4), analog feedback multiplexing via CSNS/SYNCB, and SOIC-32EP package compatibility across the 12XS6 family.
Technical Context
The MC40XS6500DEK integrates five independent high-side power switches with active clamp circuitry, thermal shutdown with prewarning, and programmable open-load detection per channel. Its SPI-controlled PWM module supports 8-bit duty cycle resolution and external clock synchronization (CLK input) for multi-phase timing coordination.
It implements dual-supply architecture: VBAT (7.0–18 V) powers internal regulators, analog blocks, and gate drivers; VCC (4.5–5.5 V) supplies SPI I/Os and OUT6 logic. Sleep current is <5.0 µA at 12 V VBAT, and fault reporting includes short-to-battery, severe short-to-ground, overtemperature, clock failure, and undervoltage events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) per channel | 40 mΩ max - enables low conduction loss for 3.9 A continuous output current per channel under thermal limits. |
| Operating supply (VBAT) | 7.0 V to 18 V functional range - ensures stable operation across automotive battery transients including cold-crank conditions. |
| SPI interface speed | 5.0 MHz - supports fast configuration and real-time diagnostics in daisy-chained ECU architectures. |
| Current sense ratio | Programmable 1:100 to 1:1000 - allows precise load current monitoring for both LED and incandescent lamp diagnostics. |
| Reverse polarity protection | -16 V - prevents damage during battery misconnection without external components. |
| Thermal shutdown threshold | 150 °C junction - latches OFF affected channel until wake-up reset, preventing thermal runaway in overload conditions. |
| Fail mode inputs | IN1–IN4 + LIMP pin - enables hardware-level channel control during MCU communication loss, maintaining partial functionality. |
Pinout & Package
MC40XS6500DEK uses a 32-pin SOIC exposed pad (SOICEP) package with thermal enhancement for automotive under-hood environments. Pin 33 (VBAT) is the exposed pad, serving as primary power source and thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1–OUT5 | High-side power outputs | Five protected channels with integrated overcurrent, overtemperature, and open-load detection; each drives lamps/LEDs directly from VBAT. |
| IN1–IN4 | Direct control inputs | Wake-up and fail-mode channel enable inputs; pull-downed internally, allowing direct MCU GPIO or switch control without level-shifting. |
| CSNS / SYNCB | Analog feedback & sync | CSNS provides multiplexed analog voltage proportional to selected channel current, battery voltage, or die temperature; SYNCB triggers MCU ADC sampling synchronously. |
| CP | Charge pump capacitor | External capacitor connection for internal charge pump - enables full gate drive voltage for high-side FETs across wide VBAT range. |
| RSTB / CSB / SCLK / SI / SO | SPI interface | Standard 4-wire SPI with chip select and reset; SO supports daisy-chaining to reduce MCU pin count in multi-device systems. |
| VBAT | Main power supply | Exposed pad connected to battery rail - supplies all internal circuitry and serves as primary thermal dissipation path. |
| VCC | Digital logic supply | 5 V supply for SPI I/O buffers and OUT6 driver; required for bidirectional communication but not for basic power switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic overcurrent threshold profile | Adjusts trip point during inrush to avoid false shutdown while maintaining accurate steady-state current tracking. |
| Limp home mode activation | Hardware-enabled via LIMP pin - forces controlled fail-safe operation with IN1–IN4 direct control and auto-restart on overload. |
| Programmable analog feedback multiplexer | Selects CSNS output source (channel current, VBAT, or die temperature) via SPI - eliminates need for external signal routing. |
| Compatible PCB footprint & SPI driver | Shared layout and firmware across 12XS6 family variants - reduces redesign effort when scaling channel count or RDS(on). |
| Extended voltage operating mode | 6.0–28 V support - maintains basic functionality during jump-start (28 V) and cold-crank (6 V) events beyond nominal 7–18 V spec. |
Applications
| Front Fog Lamp Control | Rear Combination Lamp |
|---|---|
|
Use Scenario: Driving halogen or LED fog lamps requiring individual channel control, thermal derating, and short-circuit resilience in harsh under-bumper environment. IC Role / Device Role / Timing Role: High-side power switch with integrated diagnostics and PWM dimming; replaces discrete MOSFET + driver + protection IC solution. Use Value: Enables single-chip control of up to five lamp functions (e.g., left/right fog, position, brake, reverse) with <5 µA sleep current and fail-safe INx direct control. |
Use Scenario: Managing multiple rear lamp elements (brake, tail, turn, reverse) with independent brightness control and open-load detection for regulatory compliance. IC Role / Device Role / Timing Role: Centralized LED driver with synchronized PWM dimming and analog current feedback for closed-loop brightness calibration. Use Value: Achieves ±3% current accuracy across temperature using programmable CSNS ratio, reducing need for external current-sense resistors and calibration steps. |
| Side Marker Lighting | License Plate Illumination |
|
Use Scenario: Low-power side marker LEDs requiring ultra-low quiescent current and reverse-polarity survivability in door-mounted modules. IC Role / Device Role / Timing Role: Protected high-side switch with -16 V reverse battery tolerance and <5 µA sleep current - meets ISO 16750-2 requirements. Use Value: Eliminates need for external TVS and reverse-protection diodes, reducing BOM cost and PCB area in space-constrained door modules. |
Use Scenario: License plate LED arrays subject to moisture ingress and thermal cycling, requiring robust open-circuit detection and thermal foldback. IC Role / Device Role / Timing Role: Fault-tolerant power driver with programmable open-load window and thermal prewarning (OTW) before shutdown. Use Value: Detects LED string opens within 100 ms and reports via SPI, enabling ECU-level error logging and dashboard warning without external comparators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC40XS6500BEK | Identical electrical specs and pinout; differs only in marking and tape-and-reel packaging variant (no functional difference). | No application difference - same temperature grade (-40 °C to +125 °C), same SOIC-32EP package, same RDS(on). | Select BEK for standard reel packaging; DEK is functionally identical and interchangeable in design. |
| MC40XS6500CEK | Same pinout, package, and core functionality; CEK suffix denotes alternate Pb-free marking per 98ASA00894D, no parametric deviation. | No application difference - identical operating conditions, fault reporting, and diagnostic capabilities per datasheet Table 1. | CEK and DEK share identical qualification data and automotive AEC-Q100 Grade 1 status; DEK may be preferred for specific traceability requirements. |
Compared with MC40XS6500BEK and MC40XS6500CEK, the MC40XS6500DEK offers identical electrical performance, thermal behavior, and software compatibility - differing only in manufacturer-marking convention and reel packaging designation, with no impact on PCB layout, firmware, or system-level functionality.
Availability
MC40XS6500DEK is available at Aetrix Electronics and suitable for automotive exterior lighting, centralized body control units, and LED lamp modules requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified parts.
Supply support for MC40XS6500DEK 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 focused on automotive, industrial, and IoT applications, delivering secure, energy-efficient, and scalable silicon solutions.
The MC40XS6500DEK belongs to NXP's 12XS6 SMARTMOS family - designed specifically for centralized automotive lighting control with integrated diagnostics, robustness against battery transients, and software/hardware scalability across vehicle platforms.
FAQ
What is the maximum continuous output current per channel for MC40XS6500DEK?
The MC40XS6500DEK supports up to 3.9 A continuous output current per channel (OUT1–OUT5), provided junction temperature remains ≤150 °C. This rating assumes proper PCB thermal design with the exposed VBAT pad soldered to a thermal plane, and accounts for RDS(on) = 40 mΩ max at TJ = 125 °C. Derating is required above ambient temperatures of 85 °C.
Does MC40XS6500DEK support daisy-chained SPI communication?
Yes, MC40XS6500DEK supports daisy-chained SPI communication at up to 5.0 MHz. The SO pin outputs shifted data to the SI pin of the next device in chain, enabling multi-device control with minimal MCU GPIO usage. All devices in the chain share the same CSB, SCLK, and RSTB signals, and retain independent fault registers and configuration.
How does MC40XS6500DEK handle reverse battery connection?
MC40XS6500DEK provides -16 V reverse polarity protection on the VBAT pin. During reverse connection, internal protection circuitry prevents damage to the power switches and analog blocks. Output drivers (OUT1–OUT5) remain functional to dissipate energy safely, and the device continues to operate within its degraded range down to -16 V without latch-up or permanent failure.
What is the role of the CSNS and SYNCB pins on MC40XS6500DEK?
The CSNS pin delivers an analog voltage proportional to selected parameters - channel current (programmable ratio), battery voltage, or die temperature - multiplexed via SPI. The SYNCB pin is an open-drain output that pulses synchronously with CSNS sampling, enabling precise MCU ADC triggering for noise-immune current measurement without software timing overhead in MC40XS6500DEK systems.
Can MC40XS6500DEK operate without VCC applied?
MC40XS6500DEK can power its high-side switches and analog blocks from VBAT alone, but VCC (4.5–5.5 V) is mandatory for bidirectional SPI communication, SO output, and OUT6 control. Without VCC, the device enters a limited-function state: OUT1–OUT5 remain controllable via IN1–IN4 in fail mode, but SPI readback, diagnostics, and CSNS feedback are disabled.
MC40XS6500DEK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-SSOP (0.295", 7.50mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 6
- Ratio - Input:Output:
- 1:6
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- PWM, SPI
- Voltage - Load:
- 7V ~ 18V
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Current - Output (Max):
- 3.9A
- Rds On (Typ):
- 40mOhm
- Input Type:
- Non-Inverting
- Features:
- Internal PWM, Slew Rate Controlled, Status Flag
- Fault Protection:
- Current Limiting (Adjustable), Open Load Detect, Over Temperature, Over Voltage, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HSOP
MC40XS6500DEK FAQ
1.How can I place an order for MC40XS6500DEK through Aetrix?
Please submit a Request for Quotation (RFQ) for MC40XS6500DEK 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 MC40XS6500DEK reliable?
The price and inventory of MC40XS6500DEK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC40XS6500DEK is usually 5 days.
3.What payment methods are accepted for MC40XS6500DEK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC40XS6500DEK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC40XS6500DEK?
MC40XS6500DEK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC40XS6500DEK 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 MC40XS6500DEK?
For technical support, including MC40XS6500DEK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC40XS6500DEK requirements.
6.How does Aetrix verify that MC40XS6500DEK is sourced from the original manufacturer or authorized distributors?
All MC40XS6500DEK 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 MC40XS6500DEK meets industry standards.
7.What is the process for return or replacement of MC40XS6500DEK?
All MC40XS6500DEK units undergo pre-shipment inspection (PSI). If there is an issue with MC40XS6500DEK, 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 MC40XS6500DEK part is unused and in its original packaging.
Return procedure for MC40XS6500DEK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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