BTG7003A1EPWXUMA2 - 15.7A PROFET Wire Guard High-Side Switch | Infineon
MPN: BTG7003A1EPWXUMA2 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.45 | $34.50 |
| 100 | $2.95 | $295.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.2 | $2,200.00 |
BTG7003A1EPWXUMA2 Overview
A high-side switch (HSS) is a semiconductor load driver that sits between the supply rail (e.g., a 12 V automotive bus) and the load, controlling current return through the device. PROFET Wire Guard is a sub-category of protected MOSFET switches that adds on-die diagnostic and protection logic. This sits inside the broader hierarchy: smart power switch -> load driver -> power management IC -> semiconductor device. PROFET Wire Guard devices are designed specifically for 12 V automotive wiring harnesses, where they can detect and react to wire faults that classic fuses cannot.
Key features of the BTG7003A1EPWXUMA2 include an operating voltage range of 6 V to 18 V (load-dump tolerant up to 40 V), 15.7 A continuous load current, 50 µA idle current, integrated I²t wire-protection, reverse-battery protection, and an integrated charge pump that provides true high-side switching with R_DS(on) of about 10 mΩ. The PG-TSDSO-14-22 package has an exposed thermal pad that minimizes junction-to-PCB thermal resistance, allowing the part to sustain high continuous currents in compact modules without an external heatsink.
From an architecture standpoint, the device pairs a vertical N-channel power stage with on-die control logic including a charge pump, gate driver, current sense, and protection state machine. The I²t wire-protection algorithm emulates the thermal time constant of the wire harness, allowing the switch to predictably limit energy delivered into a fault before the conductor overheats. Infineon's ISO 26262 documentation streamlines integration into ASIL-rated systems.
Typical applications include automotive body-control modules, seat-heater and seat-belt pretensioner drivers, LED lighting drivers, HVAC flap actuators, and generic 12 V resistive or inductive load switching. The device is best suited when designers need a single robust high-side channel rather than a multi-channel PROFET+ device, or where wire-protection certification is required.
When designing with this device, ensure the load is truly single-channel and within 15.7 A; for higher current use a parallel PROFET+ part. Add a reverse-battery blocking diode or use the integrated feature, and follow Infineon's PCB layout guidance for the exposed pad.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for BTG7003A1EPWXUMA2 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with BTG7003A1EPWXUMA2 (same form factor and footprint) — differing in Package, Protection Features, Topology, Diagnostic Output, Technology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BTG7003A1EPWXT
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BTG7003A1EPW
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BTS3028SDRATMA1
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →BTS3050EJXUMA1
✅ Drop-In✓ In Stock
$0.86 / Unit
View Datasheet →BTS52004EKAXUMA1
✅ Drop-In✓ In Stock
$1.65 / Unit
View Datasheet →BTG7003A1EPWXUMA2 Maximum Ratings & Electrical Characteristics
| Switch Type | High-Side Power Switch |
| Number of Channels | 1 |
| Configuration | 1:1 N-Channel |
| Maximum Continuous Load Current | 15.7 A |
| Operating Voltage Range | 6 V to 18 V |
| Load Dump Tolerance | 40 V |
| Idle Mode Quiescent Current | 50 µA |
| On-Resistance R_DS(on) | 10 mΩ (typ) |
| Control Input | Active High |
| Wire Protection | Integrated I²t |
| Functional Safety | ISO 26262 compliant |
| Package | PG-TSDSO-14-22 (exposed pad) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +150C (TJ) |
| RoHS Status | Compliant |
BTG7003A1EPWXUMA2 Pin Configuration
| Pin 1 | OUT — Power output to load |
| Pin 2 | OUT — Power output to load |
| Pin 3 | OUT — Power output to load |
| Pin 4 | GND — Ground |
| Pin 5 | IN — Logic input (active high) |
| Pin 6 | IS — Current sense / diagnostic output |
| Pin 7 | VBB — Battery supply input (12 V) |
| Pin 8 | VBB — Battery supply input (12 V) |
| Pin 9 | NC — Not connected (per datasheet) |
| Pin 10 | NC — Not connected (per datasheet) |
| Pin 11 | NC — Not connected (per datasheet) |
| Pin 12 | NC — Not connected (per datasheet) |
| Pin 13 | NC — Not connected (per datasheet) |
| Pin 14 | NC — Not connected (per datasheet) |
Typical Applications
BTG7003A1EPWXUMA2 is suitable for 6 applications: Automotive Body Control Module Load Driver, Seat Heater and Seat Belt Pretensioner Driver, Automotive LED Lighting Module, HVAC Flap Actuator and Blower Driver, 12 V Resistive / Inductive Load Switching (Generic), Power Distribution / Wire Harness Protection.
Automotive Body Control Module Load Driver
The BTG7003A1EPWXUMA2 fits automotive body control modules (BCMs) because its 15.7 A continuous current rating matches a single high-power body load (headlamp driver, seat-heater bank) on its own channel. Its integrated I²t wire-protection prevents the harness from overheating under a stuck-relay fault, and ISO 26262 documentation supports ASIL-B BCM integration. Compared with a discrete MOSFET plus fuse, the PROFET Wire Guard detects incipient wire faults and resets electronically.
Recommended
Seat Heater and Seat Belt Pretensioner Driver
The BTG7003A1EPWXUMA2 is well-suited to seat-heater and pretensioner drivers because the 15.7 A channel can drive one seat-heater mat or pretensioner directly, and the 50 µA idle current keeps parasitic drain low when the vehicle is parked. ISO 26262 compliance helps the design meet the ASIL rating the seat system requires. The integrated thermal shutdown protects the harness if a heater element fails short.
Recommended
Automotive LED Lighting Module
The BTG7003A1EPWXUMA2 drives automotive LED headlamp or DRL modules directly from the 12 V battery because the 15.7 A channel supports one full LED array without paralleling switches. The active-high input simplifies interface with a BCM or LED controller, and 50 µA idle current minimizes quiescent drain. The integrated short-circuit and overload protection handles LED-string fault events gracefully.
Recommended
HVAC Flap Actuator and Blower Driver
The BTG7003A1EPWXUMA2 fits HVAC flap actuators and blower-motor pre-drivers because its 15.7 A continuous rating handles one resistive blower pre-stage or a large flap actuator, and the exposed-pad PG-TSDSO-14-22 package manages the inrush heating. ISO 26262 compliance supports integration into the HVAC ECU safety case. The I²t algorithm provides the predictable wire heating curve the harness qualification requires.
Recommended
12 V Resistive / Inductive Load Switching (Generic)
The BTG7003A1EPWXUMA2 fits generic 12 V resistive or inductive load switching such as relay coils, solenoid valves, and DC pump motors because its 6 V to 18 V operating range matches 12 V lead-acid and 12 V Li-ion battery systems, and the integrated inductive clamp absorbs coil kickback. The 15.7 A channel handles one heavy load directly, while 50 µA idle current keeps the standby power budget tight.
Recommended
Power Distribution / Wire Harness Protection
The BTG7003A1EPWXUMA2 fits power-distribution boxes and wire-harness protection because its I²t wire-protection algorithm mimics the thermal time constant of typical automotive wiring, predicting and limiting energy before the wire overheats. ISO 26262 compliance supports ASIL-B distribution modules, and the 40 V load-dump tolerance handles 12 V system transients. The exposed-pad package dissipates the heat from continuous 15.7 A operation without an external heatsink.
Recommended
Recommended Products Summary
Engineering reference data for BTG7003A1EPWXUMA2 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTG7003A1EPWXT | BTG7003A1EPW | BTS3028SDRATMA1 | BTS3050EJXUMA1 | BTS52004EKAXUMA1 |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TSDSO-14-22 | PG-TSDSO-14-22 (same) | PG-TSDSO-14-22 (same) | PG-TSDSO-14-22 (same) | PG-TSDSO-14-22 (same) | PG-TSDSO-14-22 (same) |
| Operating Voltage Range | 6 V to 18 V (40 V load dump) | 6 V to 18 V (40 V load dump) | 6 V to 18 V (40 V load dump) | PROFET Wire Guard 12 V family | PROFET Wire Guard 12 V family | PROFET 12 V family |
| Idle Quiescent Current | 50 µA | 50 µA | 50 µA | PROFET family range | PROFET family range | PROFET family range |
| Number of Channels | 1 | 1 | 1 | 1 | 1 | 2 |
| ISO 26262 Compliance | Yes | Yes | Yes | Yes (PROFET family) | Yes (PROFET family) | Yes (PROFET family) |
| I²t Wire Protection | Integrated | Integrated | Integrated | Integrated (PROFET family) | Integrated (PROFET family) | Integrated (PROFET family) |
| Logic Input Polarity | Active High | Active High | Active High | Active High | Active High | Active High |
Key Differentiators
- Single-channel 15.7 A PROFET Wire Guard with ISO 26262 + I²t (vs BTS70041EPZXUMA1)
- Higher continuous current than low-current PROFET siblings (vs BTS3028SDRATMA1)
- Lower idle current than relay-based solutions (vs Discrete MOSFET + automotive relay solution)
Design Notes
Estimated: at VBB=14 V and IOUT=15.7 A continuous, conduction loss in the BTG7003A1EPWXUMA2 is approximately P = I² × R_DS(on) = (15.7)² × 0.010 Ω ≈ 2.46 W. With a typical PG-TSDSO-14-22 θJA of around 35 C/W on a 2 oz 4-layer PCB, the junction rises by ~86 C above ambient. Keep PCB copper under the exposed pad at the maximum size allowed by the layout to manage this dissipation. At higher ambient (engine compartment), derate the current.
Per Infineon's PROFET Wire Guard PCB layout application note, the exposed thermal pad must be soldered to a continuous copper plane with thermal vias to inner layers. Place input/output bypass capacitors as close to the VBB and OUT pins as possible. Keep the IS diagnostic trace away from switching nodes to prevent capacitive coupling that can corrupt the current-sense output. Use wide copper pours on OUT and VBB to share current between multiple pins.
Do not drive highly inductive DC motors or solenoids without verifying the inductive avalanche energy per switching event stays within the datasheet's E_AS rating - exceeding it can cause destructive hot-spot failure. Do not assume the I²t wire-protection will prevent every fault - it must still be sized for the actual wire gauge and length in the harness. Always include a reverse-battery protection strategy (Schottky diode or P-MOSFET) at the module input even though the device has internal reverse-bias robustness up to a limited voltage and time.
Compliance Information
AEC-Q100 qualified for automotive. ISO 26262 compliant per Infineon PROFET Wire Guard datasheet. RoHS and REACH compliant per Infineon product page.
