BTS50101EKBXUMA1 - 10A Smart High-Side Switch | Infineon PROFET
MPN: BTS50101EKBXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.85 | $38.50 |
| 100 | $3.42 | $342.00 |
| 500 | $3.05 | $1,525.00 |
| 1,000 | $2.78 | $2,780.00 |
BTS50101EKBXUMA1 Overview
A high-side power switch (also called a high-side driver or PROFET) is a semiconductor device that controls a load connected between the switch output and ground, in contrast to a low-side switch which sits between the load and ground. High-side switches are essential in automotive and industrial systems because they can disconnect the load completely in the off state, eliminating parasitic ground currents and improving safety during fault conditions. Within the broader taxonomy, the BTS50101EKBXUMA1 belongs to: PROFET family -> Smart High-Side Switch -> Power Distribution Switch -> Power Management IC -> Semiconductor.
Key features include built-in protective functions such as load current limitation, overtemperature shutdown, overvoltage protection (including load-dump robustness), reverse battery protection, and ground-loss protection. A current sense (diagnostic) pin provides analog load-current feedback for fault detection and load monitoring. The integrated charge pump drives the N-channel MOSFET gate from the logic-level input signal, enabling the switch to be controlled directly by a 3.3 V or 5 V microcontroller GPIO. Smart6 technology further enhances electromagnetic compatibility (EMC) and standby-current performance.
Typical applications include automotive body electronics (driving lamps, solenoids, and motors), industrial process control, programmable logic controller (PLC) outputs, and any 12 V / 24 V system requiring protected, diagnosed high-side switching. The exposed pad dramatically lowers thermal resistance, supporting continuous 10 A operation without external heatsinking in properly laid-out PCBs.
Design consideration: maintain a copper pour of at least 6 cm² on the exposed pad to keep junction temperature within safe limits at full load. The diagnostic pin output is ratiometric — calibrate sense resistor values against the datasheet's kILIS factor to convert sense current to actual load current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer page.
Drop-in alternatives for BTS50101EKBXUMA1 — 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 BTS50101EKBXUMA1 (same form factor and footprint) — differing in Number of Channels, Package, Technology, Operating Temperature Range, Product Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
BTS50101EKBAUMA1
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
BTS51202EKAXUMA1
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.68 / Unit
View Datasheet →BTS710336ESAXUMA1
✅ Drop-In✓ In Stock
$2.45 / Unit
View Datasheet →BTS50101EKBXUMA1 Maximum Ratings & Electrical Characteristics
| Product Type | Smart High-Side Power Switch (PROFET) |
| Number of Channels | 1 |
| On-State Resistance (RDS(on), typ) | 16 mΩ |
| On-State Resistance (RDS(on), max) | 20 mΩ |
| Continuous Load Current | 10 A |
| Operating Voltage Range | 4.5 V to 28 V |
| Load Dump Protection | Yes (per automotive transient profile) |
| Technology | Smart6 (N-channel vertical MOSFET + charge pump) |
| Package | PG-DSO-14-47 EP (DSO-14 with exposed pad) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 °C to +150 °C (junction) |
| Diagnostic Feature | Current sense (analog) output pin |
| Protection Features | Overtemperature, overcurrent, overvoltage, reverse battery, ground loss |
| MSL Level | 3 |
| RoHS Status | Compliant |
BTS50101EKBXUMA1 Pin Configuration
| Pin 1 | OUT — Power output to load |
| Pin 2 | OUT — Power output to load |
| Pin 3 | GND — Ground reference |
| Pin 4 | GND — Ground reference |
| Pin 5 | IS — Current sense / diagnostic output |
| Pin 6 | IN — Logic-level input (3.3V/5V compatible) |
| Pin 7 | VS — Supply voltage (battery / 12V / 24V) |
| Pin 8 | VS — Supply voltage |
| 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
BTS50101EKBXUMA1 is suitable for 7 applications: Automotive Lamp Driver (Headlamp / Tail / Indicator), DC Motor Driver (Window Lifter, Seat Adjuster, Fan), Industrial 24V Solenoid / Valve Driver, Resistive Heater Driver (Seat Heater, Mirror Heater), LED Driver (Interior / Exterior Lighting), PLC Discrete Output Module (24V Industrial), Battery Management System - Load Disconnect.
Automotive Lamp Driver (Headlamp / Tail / Indicator)
The BTS50101EKBXUMA1 is engineered for 12V automotive lamp loads including headlamps, tail lamps, brake lights, and turn indicators. Its 10 A continuous current rating covers typical bulb currents (5–8 A) with substantial headroom for inrush when cold filaments draw 8–10× steady current. The 16 mΩ RDS(on) keeps conduction loss around 1 W at full load, while the exposed-pad package dissipates heat efficiently without external heatsinking. Integrated protection against short-to-ground, overtemperature, and load-dump transients (per ISO 7637-2) is critical in underhood body modules. The analog current-sense pin enables open-filament detection by reporting load current to the ECU, supporting ASIL-aware diagnostic strategies.
Recommended
DC Motor Driver (Window Lifter, Seat Adjuster, Fan)
Body-electronics DC motors for window lifters, seat adjusters, mirror adjusters, and HVAC blowers are ideal loads for the BTS50101EKBXUMA1. The 10 A continuous rating covers stall currents typical of small automotive motors (6–9 A), and the 28 V operating range tolerates load-dump transients during engine cranking. The integrated charge pump and gate driver allow direct 3.3 V / 5 V GPIO control from a body-domain MCU without external bootstrap components. Smart6 current limitation protects the motor windings and wiring during stall conditions, while reverse-battery protection eliminates the need for an external Schottky diode. The analog sense output feeds back to the MCU for stall detection and anti-pinch algorithms.
Recommended
Industrial 24V Solenoid / Valve Driver
In industrial 24V PLC and process-control systems, the BTS50101EKBXUMA1 drives hydraulic and pneumatic solenoid valves that draw 2–8 A inrush currents. The 28 V maximum operating voltage comfortably covers 24 V nominal rails with transient headroom, while the 16 mΩ RDS(on) keeps solenoid-coil driver dissipation below 1.3 W at 8 A. Reverse-battery / reverse-polarity protection is invaluable in field-wired installations where miswiring is common. The diagnostic pin allows the PLC to detect open-coil, shorted-coil, and stuck-valve faults in real time, supporting Industry 4.0 predictive maintenance. The exposed-pad PG-DSO-14-47 EP package is well suited to through-hole-style reflow soldering on standard FR-4 PCBs.
Recommended
Resistive Heater Driver (Seat Heater, Mirror Heater)
The BTS50101EKBXUMA1 is well suited to driving PTC seat heaters and mirror heaters in automotive comfort systems. Resistive loads behave like pure resistors with low inrush, so the 10 A rating can be fully utilized to deliver several hundred watts of heating power. The integrated current sense allows closed-loop temperature control by modulating duty cycle based on measured load current, removing the need for a separate current-sense resistor. Smart6 technology ensures very low standby current (<1 µA typical), preserving battery life during vehicle parking. The exposed-pad package dissipates the 1–2 W conduction loss comfortably on FR-4 PCB copper.
Recommended
LED Driver (Interior / Exterior Lighting)
Driving high-brightness LED strings for automotive interior lighting, daytime running lights, or signal lamps is a natural fit for the BTS50101EKBXUMA1. By PWM-modulating the IN pin at 100–500 Hz with the appropriate duty cycle, the BTS50101EKBXUMA1 delivers constant-current LED drive without an inductor, achieving dimming ratios exceeding 1000:1. The 10 A current rating supports LED strings drawing 2–6 A at 12 V. The diagnostic sense pin reports actual LED current back to the MCU, enabling thermal foldback and open-LED detection. Smart6 EMC performance reduces conducted emissions, easing CISPR 25 compliance for in-vehicle LED modules.
Recommended
PLC Discrete Output Module (24V Industrial)
Industrial PLC discrete output modules driving 24V field loads benefit from the BTS50101EKBXUMA1's integrated protection suite. In a 16- or 32-channel output module, the PROFET replaces discrete MOSFET + fuse + sense resistor per channel, cutting PCB area by ~60%. The 10 A per-channel rating covers most solenoid, relay-coil, and indicator-lamp loads. Built-in protection (overcurrent, overtemperature, reverse polarity) eliminates external fuses, supporting hot-swap and field-fault tolerance. The analog sense pin enables per-channel diagnostics for predictive maintenance — a key requirement in Industry 4.0 smart factories.
Recommended
Battery Management System - Load Disconnect
In e-bike, e-scooter, and small-EV battery management systems, the BTS50101EKBXUMA1 functions as a smart load-disconnect switch between the battery pack and the load. Its reverse-battery protection prevents catastrophic damage if the battery is installed backwards, while the analog sense pin enables state-of-charge estimation by measuring quiescent and active load current. The 28 V operating range covers 6S / 7S / 8S lithium packs (up to 33.6 V fully charged, with transient tolerance). Low RDS(on) minimizes voltage drop, preserving usable battery capacity. The exposed pad provides the thermal path needed for continuous 10 A discharge currents.
Recommended
Recommended Products Summary
Engineering reference data for BTS50101EKBXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BTS50101EKBAUMA1 | BTS51202EKAXUMA1 | BTS710336ESAXUMA1 |
|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon |
| Package | PG-DSO-14-47 EP | PG-DSO-14-47 EP - same | PG-DSO-14-47 EP family - same | PG-DSO-14-47 EP family - same |
| Channels | 1 | 1 | 2 | 4 |
| Operating Voltage Range | 4.5 V to 28 V | 4.5 V to 28 V | 4.5 V to 28 V | 4.5 V to 28 V |
| Technology | Smart6 | Smart6 | Smart6 | Smart6 |
| Diagnostic Sense Pin | Yes (analog current sense) | Yes | Yes | Yes (per channel) |
| AEC-Q100 Qualified | Yes (automotive) | Yes | Yes | Yes |
Key Differentiators
- Single-channel 10A rating in compact PG-DSO-14-47 EP (vs BTS710336ESAXUMA1)
- Infineon Smart6 technology with optimized EMC and standby current (vs Older PROFET generations (e.g., BTS6143D))
- Drop-in compatibility within the BTS5010-1EKB family (vs BTS50101EKBAUMA1 (family member))
Design Notes
At 10 A continuous with 16 mΩ typical RDS(on), conduction loss is approximately 1.6 W. The PG-DSO-14-47 EP package achieves low thermal resistance when the exposed pad is soldered to a PCB copper pour of at least 6 cm² (1 oz copper) on top and bottom layers with thermal vias. Estimated: with 6 cm² copper on 1 oz FR-4, theta_JA is roughly 35 K/W, giving a junction temperature rise of ~56 °C above ambient at 1.6 W — comfortably within the 150 °C maximum. Without adequate copper, thermal runaway can occur at sustained high loads.
Place the BTS50101EKBXUMA1 close to the connector / load to minimize parasitic inductance in the high-current path. Use wide copper traces (≥2 mm per ampere) for OUT and VS pins. Keep the IS (sense) trace short and away from switching nodes to avoid noise coupling. A 100 nF ceramic decoupling capacitor on VS, placed within 5 mm of the VS pin, suppresses load-dump and reverse-battery transients. Stitch the exposed pad with an array of thermal vias (0.3 mm pitch) for optimal heat transfer to internal copper planes.
Common pitfalls when using the BTS50101EKBXUMA1: (1) Driving highly inductive loads without a freewheeling path can produce VS overvoltage transients — place a TVS diode or schottky across the load. (2) The IS pin output is only valid when the channel is ON; do not interpret near-zero IS as zero load current when the channel is OFF. (3) Reverse-battery protection does NOT replace an external reverse-polarity fuse; use an inline fuse for sustained reverse-battery events. (4) The diagnostic current sense ratio (kILIS) varies with temperature and load current — calibrate against the datasheet curves, not a single point. (5) Do not exceed the absolute maximum VS rating of 40 V during load-dump — verify with the ISO 7637-2 pulse profile.
Compliance Information
AEC-Q100 qualified for automotive body-electronics applications. RoHS compliant per Infineon product page. Halogen-free per JEDEC JS709.
