BTS70802EPAXUMA1 - 2-Ch 3A High-Side PROFET Switch | Infineon
MPN: BTS70802EPAXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.65 | $26.50 |
| 100 | $2.18 | $218.00 |
| 500 | $1.82 | $910.00 |
| 1,000 | $1.54 | $1,540.00 |
| 2,500 | $1.32 | $3,300.00 |
BTS70802EPAXUMA1 Overview
A high-side power switch is a type of smart switch (semiconductor power distribution switch) that sits between the supply rail (e.g. 12 V automotive battery) and the load. Its role within the broader system hierarchy is: high-side switch -> power distribution switch -> power management IC -> semiconductor. PROFET devices integrate an N-channel MOSFET, gate driver, charge pump, diagnostics, and protection features into a single die, replacing discrete MOSFETs plus fuse and protection circuitry.
Key specifications include a 3 A continuous load current capability per channel, two independently controlled inputs, very low standby current, integrated reverse-battery protection, current limitation, over-temperature shutdown, and ground-loss / Vbb-loss robustness. The PG-TSDSO-14-22 exposed-pad package provides low thermal resistance, enabling sustained high-current operation on PCB copper without external heatsinking.
The BTS70802EPAXUMA1 uses Infineon's vertical N-channel MOSFET technology with a charge pump driving the gate, giving true low-Rdson high-side switching. AEC-Q100 qualification and the wide operating voltage range make it suited to 12 V automotive body and powertrain loads, while the same robustness benefits industrial 24 V systems. Diagnostic feedback (current sense, fault flag) enables ECU load monitoring and short-to-ground/open-load detection.
Typical applications include automotive body electronics (lighting, seat heating, mirror fold), relay and fuse replacement in distributed ECUs, industrial process control, and any 12-24 V system needing protected, paralleled high-side channels. The 2-channel architecture allows driving two related loads (e.g. left/right parking lamp) from one IC.
When designing with the BTS70802EPAXUMA1, ensure adequate PCB copper for thermal dissipation and follow Infineon's layout guidelines for the exposed pad. Verify that the application load does not exceed 3 A continuous per channel and that the diagnostic pin (if present) is properly terminated for the ECU ADC range.
This page synthesizes distributor pricing, parametric drop-in alternatives from Infineon's PROFET family, and practical design notes not found in the standalone manufacturer datasheet.
Drop-in alternatives for BTS70802EPAXUMA1 β 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 BTS70802EPAXUMA1 (same form factor and footprint) β differing in Number of Channels, Package, Operating Temperature, Product Type.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
BTS70602EPAXUMA1
β Drop-Inπ Reference alternative (not in catalog)
BTS70402EPAXUMA1
β Drop-Inπ Reference alternative (not in catalog)
BTS710336ESAXUMA1
β Drop-Inβ In Stock
$2.45 / Unit
View Datasheet βBTG7003A1EPWXUMA2
β Drop-Inβ In Stock
$2.2 / Unit
View Datasheet βBTS70802EPAXUMA1 Maximum Ratings & Electrical Characteristics
| Product Type | High-Side Power Switch (PROFET) |
| Topology | 1:1 N-Channel High-Side, 2 channels |
| Number of Channels | 2 |
| Number of Outputs | 4 (2 outputs per channel architecture) |
| Continuous Load Current | 3 A (per channel) |
| Supply Voltage (Vbb) | 5.5 V to 28 V (load dump tolerant) |
| Operating Temperature | -40 C to +150 C (junction, automotive grade) |
| Input Type | Active High |
| Fault Feedback | Current sense / diagnostic output |
| Protection Features | Current limit, over-temperature shutdown, reverse battery, ground loss, Vbb loss, overvoltage clamp |
| Package | PG-TSDSO-14-22 (14-pin, exposed pad) |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS Status | Compliant |
BTS70802EPAXUMA1 Pin Configuration
| Pin 1 | OUT1 β Channel 1 high-side output to load |
| Pin 2 | Vbb β Battery / supply voltage (5.5-28 V) |
| Pin 3 | IN1 β Channel 1 input (active high, CMOS) |
| Pin 4 | GND β Ground reference |
| Pin 5 | IN2 β Channel 2 input (active high, CMOS) |
| Pin 6 | OUT2 β Channel 2 high-side output to load |
| Pin 7 | DEN β Diagnostic enable (active high) |
| Pin 8 | IS β Current sense / diagnostic output |
| Pin 9 | NC β Not connected (per datasheet) |
| Pin 10 | NC β Not connected (per datasheet) |
| Pin 11 | NC β Not connected (per datasheet) |
| Pin 12 | NC β Not connected (per datasheet) |
| Pin 13 | NC β Not connected (per datasheet) |
| Pin 14 | NC β Not connected (per datasheet) |
Typical Applications
BTS70802EPAXUMA1 is suitable for 6 applications: Automotive Body Lighting, Relay and Fuse Replacement in Body ECUs, Industrial 24 V Load Driver, Seat Heating and Cabin Comfort Loads, Mirror Fold and Door Lock Actuators, Distributed Sensor and Lighting Nodes.
Automotive Body Lighting
The BTS70802EPAXUMA1's 3 A per-channel rating and AEC-Q100 qualification make it ideal for automotive exterior lighting such as parking lamps, daytime running lights, and turn-signal pairs. The two channels can drive left/right bulbs or a single high-power lamp from one IC, replacing legacy electromechanical relays and fuses. With its 5.5-28 V Vbb operating range and load-dump tolerance, the device survives the harsh 12 V automotive electrical environment. The integrated current-sense output feeds the body-control ECU for open-load and short-to-ground diagnostics, enabling bulb-out detection without external shunt resistors. Compared to discrete MOSFET-plus-fuse designs, the BTS70802EPAXUMA1 cuts PCB area by approximately 50 percent while adding self-protection and improving reliability.
Recommended
Relay and Fuse Replacement in Body ECUs
The BTS70802EPAXUMA1 is designed as a direct semiconductor replacement for automotive relays and fuses in body-control modules. Each channel's 3 A continuous current, combined with built-in over-current, over-temperature, and reverse-battery protection, eliminates the need for an external fuse. The active-high CMOS-compatible inputs interface directly with microcontroller GPIO pins, removing coil-driver transistors required for relays. Switching latency drops from milliseconds (relay) to microseconds, enabling PWM dimming of lamps at frequencies up to the datasheet-specified limit. The PG-TSDSO-14-22 package with exposed pad delivers thermal performance comparable to a TO-252 DPAK while occupying less PCB real estate, allowing ECU miniaturization.
Recommended
Industrial 24 V Load Driver
Beyond automotive 12 V systems, the BTS70802EPAXUMA1's 28 V Vbb rating and wide temperature range support industrial 24 V PLC and process-control applications. Two channels can drive solenoid valves, small DC motors, or indicator lamps from a single IC with full diagnostic feedback to the PLC. The reverse-battery and ground-loss protection suit outdoor equipment exposed to miswiring during installation or service. Compared to electromechanical relays, the BTS70802EPAXUMA1 provides silent, bounce-free switching and 100x longer lifetime. Integrated current-limit eliminates external fusing, simplifying agency approvals and reducing field-service costs in remote installations.
Recommended
Seat Heating and Cabin Comfort Loads
In automotive seat heating and cabin comfort modules, the BTS70802EPAXUMA1 drives resistive heating elements at up to 3 A per channel with PWM control. The device's fast switching enables software-defined heat profiles (multi-level PID) without audible relay noise. Integrated current sensing allows the ECU to detect open heating elements or shorts, supporting warranty and quality diagnostics. AEC-Q100 qualification and the -40 C to +150 C junction temperature range ensure reliable operation under seat temperatures in hot climates. Two channels per IC let the seat module address two heating zones (seat base + backrest) from one PROFET, reducing BOM cost.
Recommended
Mirror Fold and Door Lock Actuators
The BTS70802EPAXUMA1 fits automotive mirror-fold and door-lock actuators where bidirectional control and short-duration high-current pulses are needed. By paralleling the two channels or using them for two separate actuators, the IC can replace a discrete H-bridge plus protection circuit with one protected high-side switch per direction. The 3 A peak current supports most compact actuator motors. AEC-Q100 automotive qualification and the small PG-TSDSO-14-22 footprint suit the tight PCB behind door trims and mirror housings. Integrated diagnostic feedback enables stall detection, supporting premium-feature anti-pinch algorithms.
Recommended
Distributed Sensor and Lighting Nodes
In zonal or distributed vehicle architectures, the BTS70802EPAXUMA1 powers localized loads such as LED light modules, simple sensors, or auxiliary actuators near the point of use. The IC's small footprint and high efficiency minimize thermal stress in sealed lamp housings. With Vbb tolerant of load-dump transients, the device operates reliably when wired directly to the vehicle battery harness. Two channels per IC let a single PROFET drive a position lamp plus an indicator function, simplifying harness design. The diagnostic pin supports LIN or CAN ECU feedback for predictive maintenance in next-generation vehicle EE architectures.
Recommended
Recommended Products Summary
Engineering reference data for BTS70802EPAXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS70602EPAXUMA1 | BTS70402EPAXUMA1 | BTS710336ESAXUMA1 | BTG7003A1EPWXUMA2 |
|---|---|---|---|---|---|
| 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 |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Channels | 2 | 2 | 2 | 2 | 1 |
| Supply Voltage (Vbb) | 5.5 V to 28 V | 5.5 V to 28 V | 5.5 V to 28 V | 5.5 V to 28 V | 5.5 V to 28 V |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes |
| Diagnostic Output | Current sense (IS) + DEN | Current sense | Current sense | Current sense | Current sense |
Key Differentiators
- Higher per-channel current than family alternatives (vs BTS70602EPAXUMA1)
- Same package and pinout as PROFET+2 family (vs BTS70402EPAXUMA1)
- Integrated current sense vs discrete MOSFET+shunt (vs Discrete N-channel MOSFET + shunt)
Design Notes
At 3 A continuous per channel with both channels active at the 5 V/3 A load condition, power dissipation per channel is approximately 0.9 W assuming 300 mOhm Rdson (estimated: typical PROFET+2 family Rdson, please verify with datasheet). With a PG-TSDSO-14-22 exposed pad, follow Infineon's recommended PCB footprint with at least 1 square inch of copper tied to the exposed pad to keep junction temperature below 150 C. For multi-channel operation, derate per channel current based on total system dissipation.
Place the PG-TSDSO-14-22 exposed pad on a continuous copper pour connected to a thermal plane. Decouple Vbb with a 100 nF ceramic capacitor close to the Vbb pin and a bulk aluminum or polymer capacitor (>10 uF) at the supply entry point. Keep the OUT traces wide and short to minimize voltage drop and EMI; for high-PWM-frequency dimming, gate-drive ringing can couple into adjacent traces - keep analog ground separated from power ground where possible.
Do not exceed 3 A continuous per channel without verifying thermal performance on your specific PCB. The device's reverse-battery protection does NOT protect the load - place a reverse-blocking diode or use the device within its rated Vbb range. The DEN pin must be sequenced correctly to read the IS output - leaving DEN floating can cause undefined diagnostic behavior. Always verify the exact pinout from the datasheet (PG-TSDSO-14-22) before PCB layout, as Infineon PROFET packages have similar but not identical pinouts.
Compliance Information
AEC-Q100 qualified per Infineon product page and Arrow listing. RoHS and lead-free per distributor listings. Halogen-free per Infineon green-product policy.
