BTS441RGATMA1 - 17A Smart High-Side Power Switch TO-263-5
MPN: BTS441RGATMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.59 | $35.90 |
| 100 | $3.08 | $308.00 |
| 500 | $2.62 | $1,310.00 |
| 1,000 | $2.21 | $2,210.00 |
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View Datasheet →BTS441RGATMA1 Maximum Ratings & Electrical Characteristics
| Manufacturer | Infineon Technologies AG |
| Part Number | BTS441RGATMA1 |
| Switch Type | 1:1 N-Channel High-Side |
| Number of Outputs | 1 |
| Continuous Load Current | 17 A |
| Topology | Smart High-Side Switch |
| Input Type | CMOS-compatible, ground referenced |
| Diagnostics | Yes (fault feedback) |
| Technology | Smart SIPMOS (N-channel vertical FET + charge pump) |
| Package | PG-TO263-5-2 (TO-263-5) |
| Mounting Type | Surface Mount |
| Number of Pins | 5 |
| Over-Current Protection | Yes (integrated) |
| Thermal Protection | Yes (overtemperature shutdown) |
| Over-Voltage Protection | Yes (inductive load clamping) |
| Automotive Qualified | Yes (AEC-Q100 automotive grade) |
| RoHS Status | Compliant |
| Tape and Reel Quantity | 1000 (per reel) |
BTS441RGATMA1 Pin Configuration
| Pin 1 | OUT — Power output to load |
| Pin 2 | Vbb — Battery/supply voltage input |
| Pin 3 | GND — Ground reference |
| Pin 4 | IN — CMOS-compatible control input |
| Pin 5 | TAB/ST — Status/diagnostic feedback and exposed thermal tab (heat sink) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
BTS441RGATMA1 is suitable for 6 applications: Automotive Headlamp Control, Body Control Module Load Switching, Industrial 24V Solenoid and Valve Drivers, Automotive Seat Heater Control, Power Distribution Module (PDM) Replacement of Fuses, Truck and Heavy-Duty 24V Lighting.
Automotive Headlamp Control
Automotive headlamps (low beam, high beam, and DRL modules) draw 5-10 A per bulb in 12 V systems and require fault detection for open-filament conditions. The BTS441RGATMA1's 17 A continuous rating comfortably drives a single headlamp or pair of lamps, while its integrated diagnostic pin reports filament failure to the BCM. Its over-current and thermal protections are critical for the harsh under-hood thermal environment (-40 C to +125 C junction).
Recommended
Body Control Module Load Switching
Body control modules (BCMs) drive door locks, seat heaters, mirror adjusters, and similar 12 V loads. The BTS441RGATMA1's 1:1 high-side topology with CMOS input integrates cleanly with the BCM microcontroller's GPIO, while diagnostic feedback enables open-load detection during end-of-line testing. Compared to electromechanical relays, the BTS441RGATMA1 eliminates mechanical wear and provides silent PWM dimming capability for interior lighting.
Recommended
Industrial 24V Solenoid and Valve Drivers
Industrial 24 V systems use proportional valves, hydraulic solenoids, and pneumatic actuators requiring fast, protected switching. The BTS441RGATMA1's high-side configuration sources current from the 24 V rail, common-grounding the load simplifies wiring, and its integrated over-voltage clamping protects against inductive flyback from solenoids at turn-off. The 17 A rating covers most industrial valve clusters; for higher currents, the BTS450 family offers more headroom in the same package.
Recommended
Automotive Seat Heater Control
Seat heaters draw 5-15 A per seat at 12 V and require precise PWM control for temperature regulation. The BTS441RGATMA1's CMOS-compatible input enables direct PWM drive from the seat-control module's microcontroller at typical 100-200 Hz heater PWM frequencies. Its thermal protection prevents overheating if the seat cushion is folded or covered, and its diagnostic feedback can detect heater-element open-circuit faults during vehicle diagnostics.
Recommended
Power Distribution Module (PDM) Replacement of Fuses
Modern automotive power distribution modules replace blade fuses with solid-state smart switches to enable remote reset, load monitoring, and diagnostic reporting. The BTS441RGATMA1 fits this role with its 17 A channel current, integrated protection, and digital feedback - eliminating the need for a fuse holder and enabling the BCM to report fault conditions via CAN. Multiple BTS441RGATMA1 units can be combined in a PDM for each protected branch.
Recommended
Truck and Heavy-Duty 24V Lighting
Commercial trucks and heavy-duty vehicles operate on 24 V electrical systems, where lighting loads (marker lamps, brake lights, signal lights) require protected high-side switching. The BTS441RGATMA1's part of Infineon's Classic PROFET 24V family makes it qualified for 24V bus operation with appropriate thermal design. Its monolithic integration reduces PCB complexity in trailer lighting controllers where space is constrained.
Recommended
Recommended Products Summary
Engineering reference data for BTS441RGATMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS442E2 | BTS450 | BTS52004EKAXUMA1 | ITS4040DEPDXUMA1 | BTT60101ERBXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TO263-5-2 | PG-TO263-5-2 - same | PG-TO263-5-2 - same | PG-TO263-5-2 - same | PG-TO263-5-2 - same | PG-TO263-5-2 - same |
| Topology | 1:1 N-Channel High-Side | 1:1 N-Channel High-Side | 1:1 N-Channel High-Side | Dual-Channel High-Side | 1:1 High-Side | Dual-Channel High-Side |
| Continuous Load Current | 17 A | Lower (verify datasheet) | Higher (~24-40 A, verify variant) | Lower per channel | [DATA_NEEDED] | [DATA_NEEDED] |
| Technology | Smart SIPMOS | Smart SIPMOS | Smart SIPMOS | Smart SIPMOS | Smart SIPMOS | Smart SIPMOS |
| Diagnostics | Yes (fault feedback) | Yes | Yes | Yes | Yes | Yes |
| Over-Current Protection | Integrated | Integrated | Integrated | Integrated | Integrated | Integrated |
| Thermal Protection | Yes | Yes | Yes | Yes | Yes | Yes |
| Automotive Qualified | Yes (AEC-Q100) | Yes | Yes | Yes | Yes | Yes |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Industry-standard 17 A PROFET 24V with diagnostic feedback (vs BTS52004EKAXUMA1)
- Mature Classic PROFET family with extensive automotive track record (vs BTS70081EPAXUMA1 (newer PROFET+))
- CMOS-compatible ground-referenced input simplifies MCU interfacing (vs Discrete N-channel MOSFET + driver)
Design Notes
The BTS441RGATMA1's PG-TO263-5-2 package dissipates heat primarily through pin 5 (the exposed tab). At 17 A continuous load with Rds(on) in the tens of milliohms, internal dissipation can reach several watts. Estimated: with Rds(on) of approximately 20 mOhm at 25 C and 17 A load, conduction loss is about 5.8 W; the package's theta_JA on a standard 4-layer PCB with ~6 cm^2 copper is roughly 40 C/W, producing a junction temperature rise of ~232 C, exceeding the 150 C limit. Designers MUST use the largest practical copper pour on pin 5, add thermal vias, and verify junction temperature against the application thermal envelope.
Inductive loads (relays, solenoids, motors) can generate flyback voltages that exceed the device's clamping capability if load inductance is high. Estimated: for a 100 mH solenoid at 1 A, stored energy E = 0.5 * L * I^2 = 50 mJ; verify this is within the device's repetitive avalanche energy rating. For larger inductors, add an external TVS diode or flyback diode to protect the switch. Also ensure the input pin (IN) is never left floating - always tie it high or low through the microcontroller, never through a high-impedance node.
Place input and output bypass capacitors as close to the device pins as possible. Use wide copper pours for the Vbb supply trace to minimize parasitic inductance that causes ringing during switching events. Connect the exposed tab (pin 5) to a large copper area on both top and bottom layers, stitched with thermal vias (typically 0.3 mm drill, 0.5 mm pad, 1 mm pitch array). Maintain creepage/clearance distances appropriate for the maximum working voltage per IPC-2221 if the design is for high-voltage transient environments.
Compliance Information
AEC-Q100 qualified per Infineon Classic PROFET 24V family. RoHS and REACH compliant. Halogen-free status not confirmed in verified data - consult manufacturer for confirmation.
