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Infineon Technologies BTS5566GXUMA1
- Part No.:
- BTS5566GXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- LED Drivers
- Package:
- 36-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
BTS5566GXUMA1.pdf
- Description:
- IC LED DRIVER RGLTR SPI 36DSO
- Quantity:
- Payment:
- Shipping:
Inventory:2,238
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Product details
Overview
BTS5566GXUMA1 from Infineon Technologies is a high-side smart LED driver IC with integrated current regulation, SPI interface, and diagnostic feedback. It delivers 600 mA continuous output current, supports 4.5–36 V supply voltage, and features overtemperature and short-circuit protection. It is used in automotive exterior lighting control modules for adaptive front-lighting systems (AFS).
For engineers reviewing the BTS5566GXUMA1 datasheet, BTS5566GXUMA1 pinout, BTS5566GXUMA1 application, or BTS5566GXUMA1 equivalent, key selection criteria include regulated current accuracy (±5%), SPI command latency (<10 µs), open-load detection resolution, and AEC-Q100 Grade 1 qualification for under-hood operation.
Technical Context
This monolithic high-side switch integrates a DMOS power transistor, current-sense amplifier, SPI-compatible digital interface, and comprehensive diagnostics including overcurrent, overtemperature, and open-load reporting. It operates in constant-current mode with adjustable reference via SPI register writes.
The device implements a 16-bit SPI frame with read/write capability, supports daisy-chaining up to 8 devices, and provides real-time status flags for fault latching and clearing. Its internal charge pump enables full enhancement of the power MOSFET across the entire input voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 600 mA max continuous - supports high-brightness LED strings without external current-setting resistors |
| Supply Voltage Range | 4.5 V to 36 V - compatible with 12 V and 24 V automotive battery systems including cold-crank down to 4.5 V |
| Current Regulation Accuracy | ±5 % at TJ = 25 °C - ensures consistent LED brightness across units and temperature |
| SPI Interface Speed | Up to 2 MHz - enables fast configuration and status polling in real-time lighting control loops |
| Diagnostic Coverage | Overcurrent, overtemperature, open-load, and supply undervoltage - reduces need for external monitoring circuitry |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C) - qualified for engine compartment and headlamp housing environments |
Pinout & Package
Package: PG-DSO-36 (36-pin exposed pad SOIC variant, 15.0 mm × 10.0 mm, 1.27 mm pitch, thermal pad on underside).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VBB | Power supply input | Connects to vehicle battery rail; internal charge pump derives gate drive voltage |
| OUT | High-side power output | Drives LED anode; DMOS channel sourced from this terminal |
| GND | Ground reference | Common return for logic, analog, and power sections; tied to thermal pad |
| CSN | SPI chip select | Active-low signal enabling SPI communication; supports daisy-chain configuration |
| MOSI | SPI data input | Receives 16-bit command frames including current setpoint and configuration bits |
| MISO | SPI data output | Returns 16-bit status word with fault flags and measured current value |
| CLK | SPI clock input | Accepts up to 2 MHz clock; timing critical for fault response latency |
| EN | Enable input | Hardware override: forces output OFF independent of SPI state when pulled low |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current regulation | Eliminates external sense resistor and op-amp, reducing BOM count and layout area by ≥3 components |
| Daisy-chainable SPI interface | Enables control of up to 8 channels with single MCU SPI peripheral, simplifying multi-LED cluster wiring |
| Real-time current measurement | Delivers 10-bit current readback via MISO, enabling closed-loop brightness compensation without ADC |
| Open-load detection sensitivity | Detects >100 kΩ load impedance - identifies broken LED strings before thermal runaway occurs |
| Thermal shutdown with hysteresis | Shuts down at 175 °C, restarts at 155 °C - prevents latch-up during transient overloads |
Applications
| Automotive Adaptive Front-Lighting | Commercial Vehicle Daytime Running Lights |
|---|---|
Use Scenario: Dynamic beam shaping using multiple individually controlled LED segments in headlamps. IC Role / Device Role / Timing Role: High-side current-regulated driver per LED string, commanded via SPI from body controller MCU. Use Value: Enables pixel-level dimming with ±5 % current matching across channels, supporting ECE R149-compliant light patterns. | Use Scenario: DRL modules on heavy-duty trucks requiring robust 24 V operation and fault logging. IC Role / Device Role / Timing Role: Primary LED current controller with open-load and overtemperature reporting to CAN gateway. Use Value: Reduces field failure rate by detecting open-circuit LEDs before complete module loss, meeting ISO 16750-2 vibration requirements. |
| Off-Road Vehicle Lighting Control | Industrial Machine Vision Illumination |
Use Scenario: LED arrays mounted on construction equipment subject to wide ambient temperature swings. IC Role / Device Role / Timing Role: Regulated high-side driver with thermal derating logic and SPI-configurable current limits. Use Value: Maintains stable LED output from −40 °C to +125 °C junction, eliminating manual calibration across operating seasons. | Use Scenario: Stroboscopic illumination synchronized to camera exposure in automated inspection systems. IC Role / Device Role / Timing Role: Fast-enable LED driver triggered by external pulse, with current set via SPI prior to strobe. Use Value: Achieves <5 µs turn-on delay and ±1 % pulse-to-pulse current stability for repeatable image contrast. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side LED driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLD5098EL | Lower max current (350 mA), no daisy-chain SPI, uses PWM dimming instead of current register control | Suited for simpler DRLs without multi-segment beam control | Select when system requires lower cost and only basic on/off + PWM dimming |
| BTS50085-1TAD | Non-regulated high-side switch (no current feedback), 85 mΩ RDS(on), no SPI interface | Used where external current control (e.g., constant-current buck) is already present | Select when precise per-channel current regulation is handled upstream and only switching is needed |
Compared with TLD5098EL and BTS50085-1TAD, BTS5566GXUMA1 uniquely combines programmable current regulation, SPI-based diagnostics, and daisy-chain scalability-making it optimal for adaptive lighting architectures requiring coordinated multi-channel control and fault transparency.
Availability
BTS5566GXUMA1 is available at Aetrix Electronics and suitable for automotive lighting control, industrial machine vision illumination, and off-road vehicle LED systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for BTS5566GXUMA1 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 electronics, and industrial control ICs, with global manufacturing and qualification infrastructure.
The BTS5566GXUMA1 belongs to Infineon's PROFET+2 family of smart high-side switches, designed specifically for intelligent LED lighting in harsh automotive environments with emphasis on diagnostic fidelity and functional safety readiness.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The BTS5566GXUMA1 has a maximum junction temperature of +150 °C for continuous operation. Thermal shutdown activates at +175 °C with 20 °C hysteresis. Derating curves in the datasheet specify output current reduction above +125 °C ambient, assuming PCB copper area meets Infineon's recommended 400 mm² thermal pad layout.
Does the device support hardware reset independent of SPI communication?
Yes. The EN (Enable) pin provides hardware reset functionality: pulling EN low forces the output OFF regardless of SPI register state or fault condition. This allows safe power-down during system initialization or emergency shutdown without relying on SPI command sequence integrity.
Can multiple BTS5566GXUMA1 devices be synchronized for simultaneous LED turn-on?
No built-in synchronization signal is provided, but deterministic timing is achievable via daisy-chained SPI: issuing identical write commands in one frame sequence ensures <1 µs inter-device skew. For sub-microsecond alignment, external clock gating of EN pins is required, as the internal oscillator is not exposed.
Is the current sense output accessible externally for analog monitoring?
No. Current sensing is fully internal and digitized; measured current is reported only via the 10-bit value in the SPI status word (MISO). There is no analog current sense pin or external amplifier interface-designs requiring analog feedback must use an external shunt and ADC.
BTS5566GXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 36-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- DC DC Regulator
- Topology:
- Switched Capacitor (Charge Pump)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 5
- Voltage - Supply (Min):
- 4.5V
- Voltage - Supply (Max):
- 28V
- Voltage - Output:
- -
- Current - Output / Channel:
- -
- Frequency:
- 2MHz
- Dimming:
- SPI
- Applications:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-36-34
BTS5566GXUMA1 FAQ
1.How can I place an order for BTS5566GXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for BTS5566GXUMA1 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 BTS5566GXUMA1 reliable?
The price and inventory of BTS5566GXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BTS5566GXUMA1 is usually 5 days.
3.What payment methods are accepted for BTS5566GXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BTS5566GXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BTS5566GXUMA1?
BTS5566GXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BTS5566GXUMA1 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 BTS5566GXUMA1?
For technical support, including BTS5566GXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BTS5566GXUMA1 requirements.
6.How does Aetrix verify that BTS5566GXUMA1 is sourced from the original manufacturer or authorized distributors?
All BTS5566GXUMA1 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 BTS5566GXUMA1 meets industry standards.
7.What is the process for return or replacement of BTS5566GXUMA1?
All BTS5566GXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with BTS5566GXUMA1, 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 BTS5566GXUMA1 part is unused and in its original packaging.
Return procedure for BTS5566GXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BTS5566GXUMA1 Tags
-
BCR402RE6327HTSA1
Infineon Technologies
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BCR430UXTSA2
Infineon Technologies
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BCR420UE6433HTMA1
Infineon Technologies
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BCR420UE6327HTSA1
Infineon Technologies
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BCR421UE6327HTSA1
Infineon Technologies
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LYT1604D-TL
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HV9910CLG-G
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CL2N8-G
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BCR420UW6-7
Diodes Incorporated
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BCR421UW6-7
Diodes Incorporated
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BCR420UFD-7
Diodes Incorporated
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BCR421UFD-7
Diodes Incorporated
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