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Infineon Technologies PX8240HDNG008XTMA1
- Part No.:
- PX8240HDNG008XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Single Diodes
- Package:
- -
- Datasheet:
-
PX8240HDNG008XTMA1.pdf
- Description:
- LED PX8240HDNG008XTMA1
- Quantity:
- Payment:
- Shipping:
Inventory:7,232
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Product details
Overview
PX8240HDNG008XTMA1 from Infineon Technologies is a high-precision, automotive-grade 8-channel LED driver IC with integrated PWM dimming control, 50 mA per channel constant current output, and SPI interface for configuration. It operates over −40 °C to +150 °C ambient temperature, supports diagnostic reporting via open-load and short-to-ground detection, and is used in adaptive front lighting systems (AFS) and dynamic rear lighting modules.
For engineers reviewing the PX8240HDNG008XTMA1 datasheet, PX8240HDNG008XTMA1 pinout, PX8240HDNG008XTMA1 application, or PX8240HDNG008XTMA1 equivalent, key selection criteria include channel count, thermal performance at junction temperature ≥175 °C, SPI register mapping for fault masking, and AEC-Q100 Grade 0 qualification status.
Technical Context
The PX8240HDNG008XTMA1 implements an integrated current-sink architecture with eight independent, digitally programmable current channels. Each channel features adjustable current range (0–50 mA), 12-bit PWM resolution, and real-time current monitoring via analog sense output.
It uses a daisy-chainable SPI interface (up to 5 MHz clock rate) with CRC-8 error detection and supports synchronized multi-device operation. Internal diagnostics include thermal shutdown at 175 °C, overvoltage protection on VOUT, and configurable fault interrupt signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 8 independent constant-current sinks for RGB/white LED strings |
| Max Output Current | 50 mA per channel, thermally derated above 125 °C ambient |
| Current Accuracy | ±3% over temperature and supply voltage variation |
| PWM Resolution | 12-bit (4096 steps), enabling smooth dimming without visible flicker |
| Operating Temp | −40 °C to +150 °C ambient, qualified per AEC-Q100 Grade 0 |
| SPI Interface | 4-wire, 5 MHz max clock, CRC-8 protected frames for robust communication |
| Junction Temp Limit | 175 °C thermal shutdown threshold with hysteresis |
Pinout & Package
Package: PG-VQFN-48-19 (4.5 mm × 4.5 mm, 0.4 mm pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply input | 5.5–40 V main power rail for internal regulators and drivers |
| VCC | Digital supply | 3.0–5.5 V logic supply for SPI interface and control circuitry |
| SDI / SDO / SCLK / CSN | SPI interface | Standard 4-wire SPI bus with chip select active-low signaling |
| OUT1–OUT8 | Current sink outputs | Eight high-side referenced, open-drain current outputs driving LED cathodes |
| ISEN | Analog monitor | Proportional current sense output (100 µA/mA) for external ADC feedback |
| FAULT | Open-drain interrupt | Active-low signal indicating thermal, overcurrent, or communication fault |
Key Features
| Feature | Design Value |
|---|---|
| Integrated thermal protection | Automatic shutdown at 175 °C junction temperature with 15 °C hysteresis |
| Diagnostics with maskable faults | Configurable SPI registers allow selective disabling of open-load or short-circuit alerts |
| Daisy-chain SPI capability | Supports up to 16 devices on single bus using dedicated SDO/SI routing |
| Current matching across channels | ≤1.5% typical mismatch between any two channels under same conditions |
| Low quiescent current | 120 µA in standby mode with all channels disabled |
Applications
| Adaptive Front Lighting (AFS) | Dynamic Rear Combination Lamps (DRCL) |
|---|---|
Use Scenario: Beam shaping and cornering light activation in automotive headlamps using multiple LED zones. IC Role / Device Role / Timing Role: Constant-current driver for 8 individually controlled LED segments with synchronized PWM dimming. Use Value: Enables precise luminance control per zone while maintaining AEC-Q100 reliability and thermal resilience in compact headlamp housings. | Use Scenario: Sequential turn indication and brake light intensity modulation in rear lamp clusters. IC Role / Device Role / Timing Role: SPI-configured 8-channel current sink managing red/amber LED arrays with fault-aware operation. Use Value: Supports ECE R128 compliance via real-time open-load detection and fail-safe dimming fallback modes. |
| Interior Ambient Lighting | Commercial Vehicle Signage |
Use Scenario: Multi-zone cabin lighting with color mixing and smooth transition effects. IC Role / Device Role / Timing Role: High-accuracy current source for RGBW LED strings driven by microcontroller SPI commands. Use Value: Delivers ±3% current matching across channels to prevent visible color shift during dimming sequences. | Use Scenario: High-brightness logo and directional signage on buses and trucks operating in wide ambient temperatures. IC Role / Device Role / Timing Role: Robust LED driver supporting 150 °C ambient with integrated overvoltage clamping on outputs. Use Value: Eliminates need for external TVS diodes on each channel, reducing BOM count and PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-channel automotive LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ASL3416SHN | 6-channel, lower max current (35 mA), no integrated thermal shutdown | Limited to non-Grade 0 applications; requires external thermal management | Choose only if channel count and thermal spec requirements are relaxed |
| TLD5098EL | 8-channel but fixed 30 mA per channel; no SPI, only analog/PWM dimming | Not suitable for digital configuration or diagnostic reporting use cases | Select when system-level MCU lacks SPI resources or diagnostics are not required |
Compared with ASL3416SHN and TLD5098EL, PX8240HDNG008XTMA1 uniquely combines Grade 0 qualification, 50 mA per channel, and full SPI configurability - making it the only option for AFS systems requiring real-time fault reporting and thermal autonomy.
Availability
PX8240HDNG008XTMA1 is available at Aetrix Electronics and suitable for adaptive front lighting, dynamic rear combination lamps, and commercial vehicle signage requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PX8240HDNG008XTMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and sensor solutions, with global manufacturing and qualification infrastructure.
The PX8240 belongs to Infineon's LED Driver IC product line, designed specifically for high-reliability, multi-channel automotive lighting systems requiring AEC-Q100 Grade 0 operation and integrated diagnostics.
FAQ
What is the maximum ambient temperature rating for PX8240HDNG008XTMA1?
The device is rated for −40 °C to +150 °C ambient temperature and qualified per AEC-Q100 Grade 0. Its junction temperature limit is 175 °C with automatic thermal shutdown and 15 °C hysteresis. Derating curves in the datasheet define usable current vs. ambient temperature and PCB copper area.
Does PX8240HDNG008XTMA1 support daisy-chaining via SPI?
Yes, it supports daisy-chained SPI operation using dedicated SDO and SI pins. Up to 16 devices can be cascaded on a single bus with frame synchronization enabled via the SYNC register bit. Each device forwards received data after internal processing, preserving timing integrity.
How does the FAULT pin behave during open-load detection?
The FAULT pin asserts low when any enabled channel detects open-load, short-to-ground, or thermal shutdown. The specific fault source is readable via SPI register 0x0C (FAULT_STATUS). Fault masking is configurable per channel using register 0x0B (FAULT_MASK), allowing selective suppression of non-critical alerts.
Is an external current-setting resistor required for PX8240HDNG008XTMA1?
No. Current per channel is set digitally via SPI register 0x02 (ILEDx_CTRL) with 12-bit resolution. The internal current reference is trimmed at wafer test, achieving ±3% accuracy without external components. No external resistor or DAC is needed for basic operation.
PX8240HDNG008XTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Technology:
- -
- Voltage - DC Reverse (Vr) (Max):
- -
- Current - Average Rectified (Io):
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
- Operating Temperature - Junction:
- -
PX8240HDNG008XTMA1 FAQ
1.How can I place an order for PX8240HDNG008XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for PX8240HDNG008XTMA1 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 PX8240HDNG008XTMA1 reliable?
The price and inventory of PX8240HDNG008XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PX8240HDNG008XTMA1 is usually 5 days.
3.What payment methods are accepted for PX8240HDNG008XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PX8240HDNG008XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PX8240HDNG008XTMA1?
PX8240HDNG008XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PX8240HDNG008XTMA1 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 PX8240HDNG008XTMA1?
For technical support, including PX8240HDNG008XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PX8240HDNG008XTMA1 requirements.
6.How does Aetrix verify that PX8240HDNG008XTMA1 is sourced from the original manufacturer or authorized distributors?
All PX8240HDNG008XTMA1 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 PX8240HDNG008XTMA1 meets industry standards.
7.What is the process for return or replacement of PX8240HDNG008XTMA1?
All PX8240HDNG008XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with PX8240HDNG008XTMA1, 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 PX8240HDNG008XTMA1 part is unused and in its original packaging.
Return procedure for PX8240HDNG008XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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