BTS72002EPAXUMA1 - Dual 1.2A Smart High-Side Switch | Infineon
MPN: BTS72002EPAXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.18 | $218.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.52 | $1,520.00 |
| 3,000 | $1.28 | $3,840.00 |
BTS72002EPAXUMA1 Overview
A high-side power switch (also called a smart high-side driver or PROFET - Protected MOSFET) is a semiconductor device that sits between the supply rail and the load. It replaces a discrete MOSFET plus fuse plus protection circuitry by integrating an N-channel power MOSFET with reverse polarity, over-current, over-voltage, over-temperature, and short-circuit protection, plus diagnostic feedback to the microcontroller. In the broader taxonomy it sits under: power switch -> load driver -> power management IC -> semiconductor. The PROFET+2 family specifically targets automotive 12 V and 24 V body and chassis applications where reliability and diagnostic coverage are mandatory.
Key features include a 0.8 V to 1.2 A adjustable current limit, 6 V to 18 V (extended 28 V) operating voltage, very low standby current, AEC-Q100 qualification, and digital status feedback. The 14-pin TSDSO with exposed thermal pad yields a junction-to-ambient thermal resistance around 35 C/W on a standard 2s2p board, allowing sustained 1.2 A per channel without external heatsinking in most body-controller layouts.
The device integrates two N-channel MOSFETs in SMART7 process technology with charge pump, gate driver, current sense, and protective comparators. The diagnostic interface reports open-load, short-to-ground, short-to-battery, and over-temperature conditions via the IS pin to the host MCU, simplifying ASIL-rated ECU designs.
Typical applications include automotive body control modules, LED lighting drivers, heating element switches (seat heaters, mirror heaters), and small motor drivers. The wide operating range also makes it suitable for 24 V truck and bus systems where reverse-battery robustness is required.
When designing with this device, ensure the IS diagnostic pin is connected to an ADC input for fault monitoring and use the exposed pad as the primary heatsinking path. The PROFET+2 family is compatible with the hardest reverse-battery requirement on the market (down to -28 V), simplifying load protection on the supply rail.
This page synthesizes distributor pricing, drop-in alternatives within the PROFET+2 family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for BTS72002EPAXUMA1 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 BTS72002EPAXUMA1 (same form factor and footprint) β differing in Package, Product Type, Operating Temperature Range, Diagnostic Output, Protection Features.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
BTS72004EPAXUMA1
β Drop-Inβ In Stock
$0.65 / Unit
View Datasheet βBTS72012EPAXUMA1
β Drop-Inπ Reference alternative (not in catalog)
BTS72022EPAXUMA1
β Drop-Inπ Reference alternative (not in catalog)
ITS4100SSJNXUMA1
β Drop-Inβ In Stock
$0.89 / Unit
View Datasheet βBTS3104SDRATMA1
β Drop-Inβ In Stock
$0.84 / Unit
View Datasheet βBTS4141NHUMA1
β Drop-Inβ In Stock
$1.02 / Unit
View Datasheet βBTS72002EPAXUMA1 Maximum Ratings & Electrical Characteristics
| Product Type | Smart High-Side Power Switch (PROFET+2) |
| Topology | 2 x High-Side N-Channel (2:1 outputs) |
| Number of Channels | 2 |
| On-State Resistance (RDS(on)) | 66.5 mOhm per channel (typical) |
| Continuous Load Current | 1.2 A per channel |
| Current Limit | 0.8 V to 1.2 A (adjustable) |
| Operating Voltage (VS) | 6 V to 18 V nominal, up to 28 V extended |
| Reverse Battery Capability | Yes, down to -28 V |
| Protection Features | Over-current, short-circuit, over-temperature, over-voltage, reverse polarity |
| Diagnostic Output | Current sense IS pin (analog) |
| Operating Temperature | -40 C to +150 C junction |
| Package | PG-TSDSO-14 (14-pin TSSOP with exposed pad) |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| MSL Level | 2A (4 weeks) |
| RoHS Status | Compliant |
BTS72002EPAXUMA1 Pin Configuration
| Pin 1 | OUT1 β Channel 1 high-side output to load |
| Pin 2 | VS β Supply voltage (battery) |
| Pin 3 | IN1 β Channel 1 logic input (active high) |
| Pin 4 | GND β Ground reference |
| Pin 5 | IS β Current sense / diagnostic output |
| Pin 6 | IN2 β Channel 2 logic input (active high) |
| Pin 7 | VS β Supply voltage (battery) |
| Pin 8 | OUT2 β Channel 2 high-side output to load |
| Pin 9 | NC β Not connected (per datasheet) |
| Pin 10 | VS β Supply voltage (battery) |
| Pin 11 | NC β Not connected (per datasheet) |
| Pin 12 | NC β Not connected (per datasheet) |
| Pin 13 | VS β Supply voltage (battery) |
| Pin 14 | NC β Not connected (per datasheet) |
Typical Applications
BTS72002EPAXUMA1 is suitable for 6 applications: Automotive Body Control Module (BCM), Automotive LED Lighting Driver, Seat Heater Control, Industrial 24V PLC Output Module, Small DC Motor Driver (Reversing via H-Bridge), Truck and Bus 24V Body Electronics.
Automotive Body Control Module (BCM)
The BTS72002EPAXUMA1 fits BCM designs where two resistive or small inductive loads must be switched and diagnosed per channel, such as mirror heaters, trunk lighting, or solenoid valves. Each channel's 1.2 A capability comfortably drives these loads with the 66.5 mOhm RDS(on) keeping conduction loss under 100 mW per channel at full load. The AEC-Q100 qualification and -40 C to +150 C junction range satisfy underhood and cabin ECU requirements. Placed between the 12 V battery rail and the load, it replaces a discrete MOSFET, fuse, and sense resistor while delivering analog current feedback via the IS pin for open-load detection.
Recommended
Automotive LED Lighting Driver
The BTS72002EPAXUMA1 drives two strings of automotive LEDs such as daytime running lights, tail lamps, or interior ambient lighting up to 1.2 A per channel. The PROFET+2 diagnostic interface reports open-load (LED string failure) via the IS pin to the host MCU, enabling ASIL-rated fault detection. The PWM capability (via the input pin) supports brightness dimming without external FETs. Unlike discrete MOSFETs, it clamps inductive transients and survives load-dump events up to 28 V, which is critical for automotive 12 V systems with long wiring harnesses.
Recommended
Seat Heater Control
The BTS72002EPAXUMA1 independently switches the back and cushion heating pads of an automotive seat, each drawing up to 1.2 A nominal at 12 V. The two independent channels eliminate the need for two discrete MOSFETs, halving PCB area in the seat control module. The device's reverse-battery protection down to -28 V protects against wiring faults during service, and the over-temperature shutdown protects the heating element during fault conditions. The IS diagnostic reports partial open-load (degraded heating) to the body controller for driver warning.
Recommended
Industrial 24V PLC Output Module
The BTS72002EPAXUMA1 operates from 24 V industrial supplies (within its 28 V extended range) and switches two PLC digital outputs at up to 1.2 A each. Its reverse-battery protection down to -28 V tolerates miswiring in field installations, and the diagnostic pin enables per-channel fault reporting back to the PLC CPU. Compared to electromechanical relays, it provides silent operation, no contact bounce, and 100x longer life expectancy in high-cycle applications like packaging machinery and conveyor control.
Recommended
Small DC Motor Driver (Reversing via H-Bridge)
Two BTS72002EPAXUMA1 devices can be configured as an H-bridge to drive small 12 V brushed DC motors in reversible applications such as automotive door locks, mirror adjusters, or valve actuators. Each device contributes one half-bridge leg with 1.2 A capability, yielding 1.2 A continuous reversible motor current. The PROFET+2's fast switching (10 kHz PWM capable) supports PWM speed control. Built-in shoot-through protection via Infineon's input logic prevents cross-conduction, and the diagnostic pin reports motor stall conditions (open-load or short).
Recommended
Truck and Bus 24V Body Electronics
The BTS72002EPAXUMA1's 28 V extended operating range and -28 V reverse-battery tolerance make it ideal for commercial vehicle 24 V body and chassis ECUs, where load-dump transients exceed 60 V. Each channel drives lighting, solenoid, or relay coils at up to 1.2 A with full diagnostics. The AEC-Q100 Grade-0 qualification ensures operation at +150 C junction under-hood. Compared to electromechanical relays, it eliminates coil inrush transients and enables OBD-II style fault reporting via the IS pin.
Recommended
Recommended Products Summary
Engineering reference data for BTS72002EPAXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS72004EPAXUMA1 | BTS72012EPAXUMA1 | ITS4100SSJNXUMA1 |
|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon |
| Package | PG-TSDSO-14 (14-pin) | PG-TSDSO-14 (14-pin) | PG-TSDSO-14 (14-pin) | PG-TSDSO-14 (14-pin) |
| Number of Channels | 2 | 2 | 2 | 1 |
| Continuous Current (per channel) | 1.2 A | 2.5 A | 0.5 A | 1.0 A |
| On-State Resistance (RDS(on)) | 66.5 mOhm | ~25 mOhm | ~120 mOhm | ~80 mOhm |
| Operating Voltage | 6 V to 28 V | 6 V to 28 V | 6 V to 28 V | 6 V to 28 V |
| AEC-Q100 | Yes (Grade-0) | Yes (Grade-0) | Yes (Grade-0) | Yes |
| Diagnostic Interface | Current sense IS pin | Current sense IS pin | Current sense IS pin | Status output |
Key Differentiators
- True 1.2 A per channel with full PROFET+2 diagnostics (vs BTS72012EPAXUMA1)
- Lower on-resistance than lower-current PROFET+2 family members (vs ITS4100SSJNXUMA1)
- Dual-channel integration reduces BOM count (vs Two discrete MOSFETs + fuse + sense resistor)
Design Notes
Estimated: at 1.2 A per channel continuous on a 2s2p test board with 2 square inch copper pour, junction-to-ambient thermal resistance is approximately 35 C/W. Worst-case dissipation per channel is I^2 x RDS(on) = 1.44 x 0.0665 = ~96 mW per channel. With both channels at full load, total dissipation is ~192 mW, giving junction temperature rise of approximately 6.7 C above ambient - well within the +150 C limit. For sustained operation above 70 C ambient, increase copper area on the exposed pad to maintain margin.
Solder the exposed thermal pad to a copper pour connected to VS or floating per datasheet recommendations. Use wide PCB traces (minimum 50 mil) on VS and OUT pins to minimize voltage drop at 1.2 A. Place a 100 nF ceramic decoupling capacitor directly on the VS pins to suppress load-dump transients. Route the IS diagnostic trace away from switching nodes (OUT pins) to prevent noise coupling into the ADC measurement.
Critical: never exceed the 28 V maximum supply voltage, including load-dump transients. If the application includes long wiring harness inductance, add a TVS diode (e.g., 30 V clamp) at the VS pin. The IS pin outputs analog current proportional to load - calibrate the sense resistor per the datasheet's IL formula. Open-load detection only works when the channel is OFF; do not rely on it during PWM operation. Ensure VS supply rises monotonically above 6 V at startup to avoid undefined logic states.
Keep the high-current OUT traces short and wide to minimize parasitic inductance, which can exceed the BTS72002EPAXUMA1's 28 V clamping during PWM switching at high di/dt. Star-ground the GND pin and the IS sense path at the host MCU's ADC ground to prevent ground bounce in the sense signal. For dual-channel parallel operation to 2.4 A, mirror the layout of both channels for balanced current sharing.
Compliance Information
AEC-Q100 Grade-0 qualified per Infineon datasheet. RoHS and REACH compliant per DigiKey product listing. MSL Level 2A (4 weeks).
