BTS70082EPAXUMA1 - 2x 8mΩ 7.5A Smart High-Side Switch | Infineon PROFET
MPN: BTS70082EPAXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.58 | $3.58 |
| 10 | $3.22 | $32.20 |
| 100 | $2.87 | $287.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.31 | $2,310.00 |
| 3,000 | $2.05 | $6,150.00 |
BTS70082EPAXUMA1 Overview
A high-side switch (HSS) is a power-distribution topology where the MOSFET sits between the load and the positive supply rail, allowing the load to be grounded and switched/protected by a logic-level control signal. Within the broader hierarchy, a high-side switch belongs to power distribution switches (PDSs), which sit inside the power-management IC (PMIC) category, and ultimately under discrete and integrated semiconductor components used in body electronics, industrial 24 V systems, and USB-PD capable rails.
Key differentiating features include two independently-controlled channels in one IC, very low standby current, an analog/digital diagnostic (current sense) output for load-current feedback, AEC-Q100 qualification for automotive use, and reverse-battery protection up to -16 V. Compared with discrete MOSFETs plus discrete fuses, the BTS70082EPAXUMA1 replaces the fuse, the relay, and the sense resistor while reducing PCB area.
The IC uses a vertical N-channel power stage with charge pump and a multi-stage protection state machine (overcurrent, overtemperature, short to ground/VS, open load). According to the Infineon PROFET+2 12 V datasheet family, the current-sense (IS pin) ratio is typically kILIS = 5000 with 12-bit resolution, enabling MCU-side diagnostics. Operating junction temperature range is -40 °C to +150 °C.
Typical applications include automotive body modules (HVAC blower, seat-heater control), lighting (LED front headlamp segments and tail-light drivers), USB-PD charging ports up to 5 A per channel, industrial 24 V PLC output modules, and any application requiring fuse-less, diagnosable load switching up to 7.5 A per channel.
When designing with this device, ensure the IS-pin load resistor (R_IS) is chosen to keep IS voltage below 5 V at full load, and that the 24 V supply is filtered for ISO 7637-2 pulses (clamping or TVS recommended). Always share a common ground return between the MCU and the BTS70082 to avoid ground-shift-induced diagnostic errors.
Drop-in alternatives for BTS70082EPAXUMA1 — 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 BTS70082EPAXUMA1 (same form factor and footprint) — differing in Package, Diagnostic Output, Operating Temperature Range, Topology, Number of Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BTS70081EPAXUMA1
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →BTS70121EPAXUMA1
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$1.05 / Unit
View Datasheet →BTS700201ESPXUMA2
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.18 / Unit
View Datasheet →BTT60101ERBXUMA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.24 / Unit
View Datasheet →BTS52001ENAXUMA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.82 / Unit
View Datasheet →BTS70082EPAXUMA1 Maximum Ratings & Electrical Characteristics
| Product Family | PROFET+2 (12 V, dual channel) |
| Switch Type | High-side N-channel MOSFET switch |
| Number of Channels | 2 |
| On-Resistance (RDS(on)) per channel | 16 mΩ typical (8 mΩ channel-on resistance per channel pair) |
| Continuous Load Current per channel | 7.5 A |
| Nominal Supply Voltage | 12 V |
| Operating Supply Voltage Range | 3.1 V to 28 V |
| Load Dump / Transient Tolerance | 42 V per ISO 7637-2 |
| Reverse Battery Protection | -16 V |
| Current Sense (IS) Ratio kILIS | 5000 (typical) |
| Protection Features | Overtemperature shutdown, overcurrent, short to ground, short to VS, open load, ground loss |
| Diagnostic Output | Current-sense (IS) pin, analog/digital |
| Operating Junction Temperature | -40 °C to +150 °C |
| Package | PG-TSDSO-14-22 (TSSOP-14 EP, 14-pin thermal-pad SMD) |
| AEC-Q100 Qualification | Yes (Automotive Grade) |
| Mounting Type | Surface Mount |
| MSL Level | MSL3 (per JEDEC J-STD-020) |
| RoHS Status | Compliant |
BTS70082EPAXUMA1 Pin Configuration
| Pin 1 | OUT1 — Channel 1 power output (load return) |
| Pin 2 | IN1 — Channel 1 logic-level input (active high) |
| Pin 3 | IS — Current-sense diagnostic output |
| Pin 4 | VS — Supply voltage (12 V nominal) |
| Pin 5 | GND — Ground |
| Pin 6 | IN2 — Channel 2 logic-level input (active high) |
| Pin 7 | OUT2 — Channel 2 power output (load return) |
| Pin 8 | NC — Not connected (per datasheet) |
| 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 | EP — Exposed thermal pad, tie to GND for heatsinking |
Typical Applications
BTS70082EPAXUMA1 is suitable for 6 applications: Automotive Body Control Module (BCM), USB Type-A / PD Charging Ports (Dual), Automotive LED Lighting Modules, Industrial 24 V PLC Output Modules, HVAC Blower and Seat Heater Drivers, Automotive Power Distribution Boxes.
Automotive Body Control Module (BCM)
BTS70082EPAXUMA1 is a drop-in solution for 12 V BCM outputs such as seat heaters, mirror heaters, and HVAC flaps. The 8 mΩ per-channel RDS(on) keeps dissipation below 0.5 W per channel at 7 A, eliminating the need for fuse holders on each output. AEC-Q100 qualification plus ISO 7637-2 42 V load-dump tolerance means the part survives jump-start and inductive-load transients without external TVS. The integrated current-sense (IS) pin allows the BCM MCU to detect lamp-out, short-to-ground, and open-load conditions without a dedicated ADC per channel.
Recommended
USB Type-A / PD Charging Ports (Dual)
The dual 7.5 A channels of BTS70082EPAXUMA1 make it ideal for dual USB Type-A 5 V/2.4 A ports or USB-PD sink channels up to 12 V/5 A. Each channel's 8 mΩ RDS(on) yields only 0.16 W loss at 5 A, well within thermal limits of the PG-TSDSO-14-22 exposed pad. The current-sense output enables BC1.2 / Type-C port-controller ICs to monitor load current for cable-compensation and OCP. Compared with discrete p-channel MOSFETs plus fuses, the PROFET+2 reduces PCB area by 60% and removes the need for in-line fuses per port.
Recommended
Automotive LED Lighting Modules
For LED front headlamp segments, daytime running lights, and rear combination lamps, BTS70082EPAXUMA1 provides two independently-dimmable high-side channels up to 7.5 A each. The diagnostic current-sense output reports LED current to the headlamp ECU, supporting the manufacturer's required open-circuit detection (e.g. for stop lamp failure indication). The 28 V continuous operating range tolerates load-dump events up to 42 V, and the -16 V reverse-battery rating protects the headlamp driver from jump-start reverse polarity errors in service bays.
Recommended
Industrial 24 V PLC Output Modules
Although designed for 12 V, BTS70082EPAXUMA1 can serve 24 V PLC digital-output channels for non-safety loads such as indicator lamps and small solenoids within its 28 V operating range. Each channel's 8 mΩ RDS(on) keeps conduction loss low for high-density 16-channel or 32-channel output modules. The PROFET+2 integrated protection (overtemperature, short-circuit) removes the need for external fuses and reduces field-service callouts. The exposed thermal pad on PG-TSDSO-14-22 simplifies thermal management when stacked on a multi-channel module's aluminum backplate.
Recommended
HVAC Blower and Seat Heater Drivers
HVAC blower motors and seat heaters draw 5-7 A continuous and exhibit high inrush currents on cold start. BTS70082EPAXUMA1's two independent 7.5 A channels drive one blower (PWM-controlled) plus one seat-heater pad (linear or PWM) from a single IC. The PROFET+2 current-limit loop absorbs motor inrush without latch-up, and the diagnostic current-sense (IS) output reports effective load current to the HVAC ECU for stall detection. AEC-Q100 Grade 1 qualification supports deployment across all automotive climatic zones.
Recommended
Automotive Power Distribution Boxes
In central power distribution boxes feeding multiple downstream ECUs, BTS70082EPAXUMA1 replaces electromechanical fuses with electronic circuit protection that can be reset via SPI or hard-wired control. Each channel provides 7.5 A continuous with programmable current limit, eliminating fuse replacement during service. The diagnostic current-sense output enables the central body controller to log fault events (short, open load, overtemperature) and report them via CAN/UDS. The PG-TSDSO-14-22 thermal-pad package supports high-density PCB layouts with copper heatsink pours.
Recommended
Recommended Products Summary
Engineering reference data for BTS70082EPAXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS70081EPAXUMA1 | BTS70121EPAXUMA1 | BTS700201ESPXUMA2 | BTT60101ERBXUMA1 | BTS52001ENAXUMA1 |
|---|---|---|---|---|---|---|
| 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 |
| Brand | Infineon | Infineon - same | Infineon - same | Infineon - same | Infineon - same | Infineon - same |
| Channels | 2 | 2 | 2 | 1 | 2 | 2 |
| RDS(on) per channel | 8 mΩ | 10 mΩ | 12 mΩ | 200 mΩ | 10 mΩ | 200 mΩ |
| Continuous Load Current | 7.5 A / channel | 6 A / channel | 5 A / channel | 2 A / channel | 6 A / channel | 0.5 A / channel |
| Operating Voltage Range | 3.1 V to 28 V | 3.1 V to 28 V | 3.1 V to 28 V | 3.1 V to 28 V | 4.5 V to 28 V | 4.5 V to 28 V |
| Diagnostic (IS pin) | Yes, kILIS = 5000 | Yes, kILIS = 5000 | Yes, kILIS = 5000 | Yes | Yes | Yes, status only |
| AEC-Q100 | Yes | Yes | Yes | Yes | Yes | Yes |
| Unit Price @ 1k (USD, approx.) | $2.31 | $2.20 | $2.10 | $1.80 | $2.50 | $1.60 |
Key Differentiators
- Lowest RDS(on) in PROFET+2 12 V dual-channel family (vs BTS70081EPAXUMA1)
- Higher load current than single-channel PROFET+2 12 V (vs BTS700201ESPXUMA2)
- True dual-channel integration vs cascaded single-channel parts (vs BTS52001ENAXUMA1)
Design Notes
At 7 A per channel with 8 mΩ RDS(on), BTS70082EPAXUMA1 dissipates approximately 0.39 W per channel (P = I²R). Both channels active yield 0.78 W. The PG-TSDSO-14-22 exposed thermal pad has theta_JA around 40 K/W on 1 oz 4-layer JEDEC EIA/JESD51 2s2p board, giving a junction rise of about 31 °C above ambient. Estimated: input values 7 A per channel, RDS(on) = 8 mΩ, theta_JA = 40 K/W. Maintain at least 100 mm² of copper pour connected to the EP for reliable operation at full load.
Place a 100 nF ceramic decoupling capacitor directly at the VS pin (pin 4) to GND, plus a 10 µF bulk capacitor within 10 mm. The IS pin needs a low-ESR resistor to GND sized for V_IS < 5 V at the maximum load current (R_IS = V_IS_max / I_IS_max where I_IS = I_LOAD / kILIS). Route the IN1 and IN2 traces away from the OUT1/OUT2 traces and avoid routing across the exposed pad to prevent ground-bounce coupling into the logic input.
Do not operate BTS70082EPAXUMA1 above 28 V continuous - the part is rated for 12 V nominal systems only, and 24 V truck applications require the PROFET+2 24 V family (BTS70012). Always tie the exposed thermal pad (pin 14) to a low-impedance ground pour; a floating EP dramatically increases theta_JA and will trigger overtemperature shutdown at lower load currents. When using PWM for dimming or motor speed control, keep PWM frequencies below 1 kHz to avoid thermal stress from switching losses.
Compliance Information
AEC-Q100 qualified for automotive applications per Infineon PROFET+2 family datasheet. RoHS compliant per distributor listings. Halogen-free status not explicitly stated in retrieved data.
