NXP Semiconductors MC15XS3400DPNA
- Part No.:
- MC15XS3400DPNA
- Manufacturer:
- NXP Semiconductors
- Package:
- 24-PowerQFN
- Datasheet:
-
MC15XS3400DPNA.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 24PQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MC15XS3400DPNA from NXP Semiconductors is a quad high-side switch IC designed for automotive lighting control, integrating four 15 mΩ (at 25 °C) protected MOSFETs capable of driving 55 W/28 W bulbs, Xenon modules, or LEDs. It features 16-bit SPI interface (8.0 MHz), programmable slew-rate outputs for EMC optimization, per-channel PWM control via parallel inputs or SPI, and Fail-safe mode for MCU failure recovery.
For engineers reviewing the MC15XS3400DPNA datasheet, MC15XS3400DPNA pinout, MC15XS3400DPNA application, or MC15XS3400DPNA equivalent, key selection considerations include its 6.0–20 V operating range, analog current feedback with selectable ratio, smart overcurrent/overtemperature protection with time-limited autoretry, openload detection for bulbs and LEDs, and daisy-chain SPI capability for multi-device systems.
Technical Context
The MC15XS3400DPNA implements a fully integrated high-side power switch architecture with independent gate drivers, programmable fault thresholds, and dual-mode control-supporting both direct parallel input (IN0–IN3) and 16-bit SPI command register access. Its internal calibratable oscillator enables standalone PWM generation without external clock source.
Protection logic includes configurable overcurrent trip levels (with seven time-step options per channel), severe short-circuit detection (<100 mΩ impedance threshold), thermal shutdown at 155–195 °C, and fail-safe operation triggered by watchdog timeout or MCU loss-of-communication via FSI pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) @ 25 °C | 15 mΩ per channel at VPWR = 13 V, enabling efficient 55 W bulb drive with <1.0 W conduction loss at 5 A |
| Operating Voltage | 6.0–20 V (fully specified); extended mode 4.0–28 V (functional but not fully characterized) |
| SPI Interface | 8.0 MHz, 16-bit, 3.3 V/5.0 V compatible with daisy-chain capability for scalable multi-switch systems |
| Output Slew Rate | Selectable fast/medium/slow rise/fall rates (0.07–1.2 V/μs) to balance switching speed and EMC compliance |
| Fault Detection | Programmable overcurrent trip levels (6.4–110 A), blanking time ≤20 μs, and autoretry with configurable duration |
| Current Sensing | Analog CSNS output with selectable ratio (1/8700 to 1/26500) and ±12–20% accuracy across 1.5–12.5 A range |
| Openload Detection | OFF-state detection with 30–100 μA pull-up; ON-state LED detection down to 2.5 mA threshold |
Pinout & Package
MC15XS3400DPNA is housed in a 24-pin PQFN package (FK suffix) with exposed thermal pad, optimized for automotive under-hood thermal environments. Pin layout supports compact PCB routing with dedicated GND pins (14, 17, 23), dual power domains (VPWR for high-side, VDD for logic), and functional grouping of HS outputs and control signals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HS0–HS3 (pins 18,19,21,22) | High-side power outputs | Protected 15 mΩ switches delivering load current from VPWR to connected bulbs/LEDs/Xenon modules |
| CSNS (pin 1) | Analog current/temperature monitor | Provides ground-referenced voltage proportional to selected HS output current or die temperature for closed-loop monitoring |
| IN0–IN3 (pins 2,3,5,6) | Direct digital control inputs | Enable hardware-level ON/OFF control of corresponding HS outputs independent of SPI communication |
| FS (pin 7) | Fault status indicator | Open-drain active-low output signaling overcurrent, overtemperature, short-to-battery, or openload faults |
| FSI (pin 24) | Fail-safe enable input | Configures watchdog behavior; open or pulled low enables automatic Fail-safe mode on MCU communication loss |
| VPWR (pin 15) | Main power supply | Connects to battery rail (4.0–28 V); powers high-side drivers and internal regulators; withstands 41 V load dump |
| VDD (pin 13) | Digital supply | 3.0–5.5 V supply for SPI interface and logic; draws <5.0 μA in sleep state |
| SCLK/CS/SI/SO (pins 11,10,12,16) | SPI bus interface | Full-duplex 16-bit serial interface supporting daisy-chaining; SO drives next device's SI in chain configuration |
Key Features
| Feature | Design Value |
|---|---|
| Quad 15 mΩ high-side switches | Enables simultaneous control of four independent lighting loads with minimal conduction loss and thermal stress |
| Programmable slew rate per output | Reduces EMI emissions during switching transitions while maintaining precise timing control for PWM dimming |
| Fail-safe mode with watchdog timeout | Maintains preconfigured output states (ON/OFF) during MCU failure or SPI interruption, ensuring system safety |
| Configurable overcurrent protection | Seven programmable trip time steps per channel allow tuning to lamp inrush profiles (e.g., 55 W halogen vs. LED) |
| Openload detection for bulbs and LEDs | Distinguishes between OFF-state open circuits (30–100 μA pull-up) and ON-state LED faults (2.5–10 mA threshold) |
| Analog current feedback with calibration | Supports real-time current monitoring with ±5.0% accuracy after single-point calibration at 5 A |
Applications
| Front Fog Light Control | Rear Combination Lamp |
|---|---|
|
Use Scenario: Independent switching and PWM dimming of front fog lamps in modern automotive body control modules. IC Role / Device Role / Timing Role: Quad high-side switch managing four separate 55 W halogen or LED fog light channels with synchronized fault reporting. Use Value: Eliminates discrete relay + driver solutions; reduces PCB area by >40% and enables adaptive beam shaping via programmable slew rate and PWM delay management. |
Use Scenario: Integrated control of brake, tail, turn, and reverse functions within rear lamp assemblies using mixed-load types. IC Role / Device Role / Timing Role: High-side driver providing individual channel diagnostics, openload detection for filament breakage, and short-to-battery protection for wiring harness integrity. Use Value: Enables single-chip replacement of multiple discrete switches; supports ASAM-compliant diagnostic trouble code (DTC) generation via SPI status registers. |
| Xenon Headlamp Ballast Control | Interior Ambient Lighting |
|
Use Scenario: Power sequencing and fault monitoring for HID ballasts requiring controlled inrush current and thermal derating. IC Role / Device Role / Timing Role: High-current switch with programmable overcurrent trip levels and lamp-cooling time steps to manage Xenon ignition surge and post-ignition stabilization. Use Value: Prevents false overcurrent trips during cold-start ignition (up to 7× rated current); supports lamp life extension via thermal feedback-based duty cycle limiting. |
Use Scenario: Dimmable LED strip control in cabin lighting systems with color-mixing and soft-start functionality. IC Role / Device Role / Timing Role: Precision PWM-capable high-side driver with analog current feedback enabling closed-loop brightness regulation across temperature variations. Use Value: Delivers flicker-free dimming down to 0.1% duty cycle; maintains consistent lumen output despite ambient temperature shifts via board temperature feedback on CSNS pin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC15XS3400CHFK | Same silicon die and electrical specs; differs only in temperature grade (-40 °C to 125 °C vs. -40 °C to 150 °C junction) | Valid for same automotive lighting applications but rated for lower max junction temperature (150 °C vs. 150 °C typical, 195 °C absolute max) | Select MC15XS3400CHFK when ambient conditions remain below 125 °C and cost sensitivity outweighs extended thermal margin needs. |
| MC15XS3400DHFK | Identical functionality and pinout; differs in fault detection blanking time (5.0 μs vs. 20 μs) and shutdown delay (7.0 μs vs. 30 μs) | Better suited for fast-fault response in safety-critical subsystems where rapid isolation is required (e.g., headlamp auto-shutoff on short circuit) | Choose MC15XS3400DHFK when system-level fault reaction time must be minimized, especially in ADAS-integrated lighting control units. |
Compared with MC15XS3400CHFK and MC15XS3400DHFK, the MC15XS3400DPNA offers the broadest thermal operating margin (150 °C ambient), longest fault blanking window for noisy environments, and highest junction temperature tolerance-making it optimal for under-hood placement in premium vehicle platforms.
Availability
MC15XS3400DPNA is available at Aetrix Electronics and suitable for automotive front/rear lighting control, Xenon ballast sequencing, and interior ambient LED dimming requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualified performance.
Supply support for MC15XS3400DPNA 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-grade power management and system-on-chip integration.
The MC15XS3400DPNA belongs to NXP's high-side switch product line engineered specifically for intelligent, diagnostic-capable automotive lighting systems-emphasizing reliability, EMC robustness, and seamless integration with body control modules.
FAQ
What is the maximum continuous output current rating for MC15XS3400DPNA?
The MC15XS3400DPNA supports up to 6 A continuous output current per channel, provided the maximum junction temperature of 150 °C is not exceeded. Actual current capability depends on PCB thermal design; with a 4-layer board, RθJA can reach 15 °C/W, allowing sustained 5 A operation at 85 °C ambient. The MC15XS3400DPNA datasheet specifies this limit in Table 4 under "Output current".
Does MC15XS3400DPNA support daisy-chained SPI communication?
Yes, MC15XS3400DPNA supports daisy-chained SPI communication via its SO (serial output) and SI (serial input) pins. When configured in daisy-chain mode, the SO pin of one MC15XS3400DPNA connects to the SI pin of the next device, enabling single-master control of multiple switches using one CS signal and shared SCLK, reducing MCU GPIO count and simplifying firmware.
How does the Fail-safe mode operate in MC15XS3400DPNA?
In Fail-safe mode, MC15XS3400DPNA maintains preprogrammed output states (HS0–HS3 ON/OFF) upon loss of SPI communication or MCU reset, triggered by timeout on the FSI pin. This behavior ensures lighting functionality remains predictable during MCU faults. The MC15XS3400DPNA implements this via an internal watchdog timer and nonvolatile register shadowing, independent of external microcontroller intervention.
Can MC15XS3400DPNA drive both incandescent bulbs and LEDs on the same device?
Yes, MC15XS3400DPNA supports mixed-load operation: its programmable overcurrent thresholds, ON-state openload detection (2.5–10 mA for LEDs), OFF-state openload detection (30–100 μA for bulbs), and adjustable lamp-cooling time steps allow concurrent control of 55 W halogen bulbs and low-current LED strings. Each channel operates independently, making the MC15XS3400DPNA ideal for combination lamps.
What is the purpose of the CSNS pin on MC15XS3400DPNA?
The CSNS pin on MC15XS3400DPNA provides an analog voltage output proportional to either the selected high-side output current (via selectable current sense ratio) or the die temperature (via GND flag sensing). This enables real-time current monitoring, closed-loop dimming, and thermal derating without external sensors-critical for diagnostics and adaptive control in automotive lighting systems using MC15XS3400DPNA.
MC15XS3400DPNA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 24-PowerQFN
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 4
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- SPI
- Voltage - Load:
- 6V ~ 20V
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Current - Output (Max):
- 6A
- Rds On (Typ):
- 15mOhm
- Input Type:
- -
- Features:
- Internal PWM, Slew Rate Controlled, Watchdog Timer
- Fault Protection:
- Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-PQFN (12x12)
MC15XS3400DPNA FAQ
1.How can I place an order for MC15XS3400DPNA through Aetrix?
Please submit a Request for Quotation (RFQ) for MC15XS3400DPNA 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 MC15XS3400DPNA reliable?
The price and inventory of MC15XS3400DPNA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC15XS3400DPNA is usually 5 days.
3.What payment methods are accepted for MC15XS3400DPNA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC15XS3400DPNA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC15XS3400DPNA?
MC15XS3400DPNA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC15XS3400DPNA 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 MC15XS3400DPNA?
For technical support, including MC15XS3400DPNA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC15XS3400DPNA requirements.
6.How does Aetrix verify that MC15XS3400DPNA is sourced from the original manufacturer or authorized distributors?
All MC15XS3400DPNA 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 MC15XS3400DPNA meets industry standards.
7.What is the process for return or replacement of MC15XS3400DPNA?
All MC15XS3400DPNA units undergo pre-shipment inspection (PSI). If there is an issue with MC15XS3400DPNA, 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 MC15XS3400DPNA part is unused and in its original packaging.
Return procedure for MC15XS3400DPNA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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