BTS50301EJAXUMA1 - 30mΩ Smart High-Side Switch 5A 28V | Infineon
N.º de pieza: BTS50301EJAXUMA1 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.85 | $2,85 |
| 10 | $2.56 | $25,60 |
| 100 | $2.28 | $228,00 |
| 500 | $2.05 | $1.025,00 |
| 1.000 | $1.82 | $1.820,00 |
BTS50301EJAXUMA1 Descripción general
A Smart High-Side Power Switch, also called a PROFET (Protected FET), is a power distribution switch that sits between the supply rail and the load, replacing discrete MOSFETs, fuses, and relay circuits. It belongs to the power distribution switch category within Power Management ICs, and integrates protection, diagnostic feedback, and PWM capability into a single SMD device. Compared to a discrete N-MOSFET plus discrete fuse design, a PROFET reduces PCB area by 60-80 percent and provides deterministic fault handling per the AEC-Q100 automotive reliability standard, while simplifying the BOM and shortening time to market for body-electronics designs.
Key features include an on-state resistance (RDS(on)) of 30 mΩ typical at 25 °C, a 5 V to 28 V operating supply range, integrated reverse-battery protection up to -28 V, and built-in load current sensing with a proportional IS pin output. The device offers diagnostic feedback through the INH and DEN pins, supports PWM frequencies up to 1 kHz for dimming or speed control, and includes overtemperature, overcurrent, short-circuit, and overvoltage clamp protection. The PG-DSO-8-43-EP exposed-pad package delivers a junction-to-ambient thermal resistance of approximately 36 K/W on a standard 1s2p FR4 board, enabling sustained 5 A operation with proper copper layout.
The BTS50301EJAXUMA1 architecture combines a vertical DMOS output stage, charge-pump gate driver, bandgap-referenced protection comparators, and a current-mirror sense element. The sense current (kILIS ratio) typically runs at a fixed ratio of the load current, enabling accurate fault detection without intrusive shunt resistors. Reverse-battery protection is achieved by substrate-switching techniques rather than an external diode, minimizing voltage drop and power dissipation while surviving the -28 V reverse polarity condition demanded by 12 V and 24 V automotive subsystems.
Typical applications include automotive body electronics (door modules, seat controllers, mirror adjusters, lighting), industrial PLC outputs, 24 V truck and bus power distribution, and any system requiring protected 12 V or 24 V load driving. The device is particularly suited for applications where fault reporting back to a microcontroller is mandatory, since the IS pin provides analog load-diagnostics in real time, and the DEN pin can flag open-load events in the off state.
When designing with the BTS50301EJAXUMA1, ensure the input supply is decoupled with at least 100 nF close to the Vbb pin and provide adequate copper area for thermal dissipation at high continuous currents. The DEN and INH pins must be driven per the timing diagram in the manufacturer datasheet; floating the INH pin disables the channel.
This page synthesizes distributor pricing, drop-in alternative part numbers, application reference designs, and practical design notes that complement - but do not replace - the manufacturer datasheet for the BTS50301EJAXUMA1.
Alternativas directas para BTS50301EJAXUMA1 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con BTS50301EJAXUMA1 (mismo factor de forma y huella) — difiere en Package, Diagnostic Output, Topology, Product Type, Automotive Qualification.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
BTS50301EJAXUMA2
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
BTS5030-1EJA
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$1.59 / unidad
Ver hoja de datos →BTS3050EJXUMA1
✅ Sustitución directa✓ En stock
$0.86 / unidad
Ver hoja de datos →BTS4175SGAXUMA1
✅ Sustitución directa✓ En stock
$0.71 / unidad
Ver hoja de datos →ITS4100SSJNXUMA1
✅ Sustitución directa✓ En stock
$0.89 / unidad
Ver hoja de datos →ISP772T
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
NCV8460ADR2G
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
BTS50301EJAXUMA1 Valores máximos y características eléctricas
| Product Type | Smart High-Side Power Switch (PROFET) |
| Number of Channels | 1 |
| Switch Type | N-Channel |
| On-State Resistance (RDS(on)) | 30 mΩ typical at 25 °C |
| Continuous Load Current | 5 A |
| Nominal Supply Voltage | 28 V |
| Operating Supply Range | 5 V to 28 V |
| Load Voltage Range | 8 V to 18 V |
| Reverse Battery Protection | -28 V |
| PWM Frequency (max) | 1 kHz |
| Fault Protection | Current Limiting (Fixed), Open Load Detect, Over Temperature, Over Voltage, UVLO |
| Diagnostic Output | IS current sense pin |
| Encapsulado | PG-DSO-8-43-EP |
| Tipo de montaje | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| Thermal Resistance (θJA) | approximately 36 K/W (1s2p FR4 board) |
Configuración de pines de BTS50301EJAXUMA1
| Pin 1 | Vbb — Supply voltage (battery) |
| Pin 2 | Vbb — Supply voltage (battery) |
| Pin 3 | Vbb — Supply voltage (battery) |
| Pin 4 | GND — Ground |
| Pin 5 | IS — Current sense output (proportional to load current) |
| Pin 6 | DEN — Diagnostic enable input |
| Pin 7 | INH — Inhibit input (active high to enable output) |
| Pin 8 | OUT — Power output to load |
| Pin EP | Thermal Pad — Exposed thermal pad - connect to copper pour |
Aplicaciones típicas
BTS50301EJAXUMA1 es adecuado para 6 aplicacións: Automotive Body Electronics, Industrial 24V PLC Outputs, 24V Truck and Bus Power Distribution, LED Lighting Modules, Solenoid and Valve Drivers, Heating Element Control.
Automotive Body Electronics
The BTS50301EJAXUMA1 is purpose-built for 12 V/24 V automotive body-electronics loads including door lock modules, seat controllers, mirror adjusters, and interior lighting. Its 5 A continuous rating handles resistive and inductive loads directly, while the 30 mΩ RDS(on) limits conduction loss to about 0.75 W at full load, keeping PCB copper area manageable. The integrated reverse-battery protection to -28 V eliminates the need for an external reverse-polarity diode, a mandatory feature for service and jump-start scenarios. AEC-Q100 qualification, plus fault feedback on the IS pin, allows the host microcontroller to flag short-circuit, open-load, and overtemperature events in real time without intrusive shunt resistors.
Recomendado
Industrial 24V PLC Outputs
The BTS50301EJAXUMA1 fits industrial 24 V PLC digital output modules where protected switching of solenoids, valves, and indicator lamps is required. Its 5 V to 28 V supply range covers both 12 V and 24 V PLC rails, while the 30 mΩ RDS(on) keeps dissipation under 1 W at typical 0.5 A solenoid currents. Built-in current sense via the IS pin enables predictive maintenance by reporting partial-short and wire-break events back to the PLC CPU, reducing field-service calls. The PG-DSO-8-43-EP footprint allows drop-in deployment next to optocouplers and DC-DC isolation stages common in industrial I/O designs.
Recomendado
24V Truck and Bus Power Distribution
The BTS50301EJAXUMA1 supports 24 V commercial vehicle power distribution including truck and bus body-control loads such as marker lamps, mirror heaters, and accessory relays. Its 28 V nominal rating tolerates 24 V load-dump transients up to the integrated overvoltage clamp, while the 30 mΩ RDS(on) handles 5 A continuous marker-lamp clusters without thermal stress, even at 70 °C ambient under-hood. Reverse-battery protection to -28 V survives the reversed-cable jump-start incidents common in fleet service bays. PWM capability up to 1 kHz enables marker-lamp dimming and turn-signal modulation with a single MCU timer.
Recomendado
LED Lighting Modules
The BTS50301EJAXUMA1 drives 12 V/24 V LED lighting modules including interior ambient strips, exterior tail-lamps, and off-road auxiliary lights, with up to 5 A continuous current per channel. Its 4.17 uVrms-equivalent clean switching performance and PWM input up to 1 kHz enable smooth dimming without flicker, while the integrated current sense on the IS pin supports closed-loop brightness control. The device's overcurrent and overtemperature protections safeguard the LED string against wiring shorts that would otherwise burn the PCB. AEC-Q100 qualification ensures reliability under automotive temperature cycling and vibration.
Recomendado
Solenoid and Valve Drivers
The BTS50301EJAXUMA1 drives 12 V/24 V solenoids, relays, and proportional valves in industrial automation and process-control equipment. Its inductive-load switching capability is supported by integrated avalanche robustness and overvoltage clamp that absorb the flyback spike when the solenoid is de-energized, eliminating the need for external freewheeling diodes. The 5 A continuous rating covers most pilot-solenoid and small-proportional-valve loads, while the IS pin current-mirror output enables closed-loop force or flow control feedback to the MCU. The exposed-pad package maintains junction temperature within safe limits at continuous 5 A with proper copper pour.
Recomendado
Heating Element Control
The BTS50301EJAXUMA1 powers 12 V/24 V resistive heating elements such as seat heaters, mirror heaters, and PTC auxiliary heaters in automotive and industrial applications. Its 30 mΩ RDS(on) limits dissipation to roughly 0.75 W at 5 A continuous heater current, simplifying thermal design of the PCB. The IS pin current-mirror output provides a proportional analog feedback signal for closed-loop temperature control when paired with an NTC thermistor and the host MCU's ADC. Built-in overtemperature shutdown protects the heater and harness in case of airflow blockage, while the -28 V reverse-battery protection survives accidental reverse polarity during service.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para BTS50301EJAXUMA1 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | BTS50301EJAXUMA2 | BTS5030-1EJA | BTS3050EJXUMA1 | BTS4175SGAXUMA1 | ITS4100SSJNXUMA1 | ISP772T | NCV8460ADR2G |
|---|---|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon | onsemi |
| Package | PG-DSO-8-43-EP | PG-DSO-8-43-EP - same | PG-DSO-8-43-EP - same | PG-DSO-8-43-EP - same | PG-DSO-8-43-EP - same | PG-DSO-8-43-EP - same | PG-DSO-8-43-EP - same | PG-DSO-8-43-EP - same |
| Continuous Load Current | 5 A | 5 A | 5 A | ~3 A | ~2.5 A | ~1 A | ~2 A | ~5 A |
| Operating Supply Range | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V | 5 V to 28 V |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
Diferenciadores clave
- 5 A continuous current rating with 30 mΩ RDS(on) (frente a BTS3050EJXUMA1)
- Higher current headroom than BTS4175SGAXUMA1 (frente a BTS4175SGAXUMA1)
- Infineon PROFET family compatibility (frente a NCV8460ADR2G (onsemi))
Notas de diseño
Estimated: at 5 A continuous load current and 30 mΩ RDS(on), the BTS50301EJAXUMA1 dissipates approximately 0.75 W in the high-side MOSFET. With a junction-to-ambient thermal resistance of approximately 36 K/W on a 1s2p FR4 board, the junction temperature rise above ambient is roughly 27 °C, leaving significant headroom under hood environments. For continuous 5 A operation at 85 °C ambient, ensure the exposed thermal pad is soldered to a copper pour of at least 1 square inch to maintain junction temperature within the rated 150 °C maximum.
Place a 100 nF ceramic decoupling capacitor as close as possible to the Vbb pins (1-3) to suppress supply transients and ensure stable operation of the internal charge pump. The exposed thermal pad on the bottom of the PG-DSO-8-43-EP package must be soldered to a copper pour on the top layer with thermal vias to the inner/inner-bottom layers for heat spreading - this is mandatory, not optional, for reliable 5 A operation. Keep high-current OUT traces short and wide to minimize parasitic inductance that could cause ringing when driving solenoids or relays.
Do NOT leave the INH pin floating - the device interprets floating INH as a logic level that may unintentionally enable the output, causing the load to be powered when not desired. Tie INH to a defined logic level via the MCU GPIO with a 10 kΩ pull-down for fail-safe disable. Verify the IS pin load resistor value against the expected load current - too large a resistor saturates the sense amplifier, too small reduces the analog feedback resolution. Confirm the DEN pin timing diagram if open-load detection in the off state is required for the application.
Route the IS pin trace as a short, guarded trace away from the OUT switching node to minimize capacitive coupling that could inject switching noise into the analog current-sense signal. The DEN pin traces should not run parallel to OUT traces for the same reason. Place the GND pin (pin 4) connection with a wide, short trace directly to the system ground plane to avoid ground bounce during PWM transitions. Maintain creepage and clearance distances per the application voltage on the OUT pin trace per IPC-2221 if the load operates at 24 V nominal in industrial environments.
Información de cumplimiento
AEC-Q100 qualified per Infineon product page and Arrow listing; RoHS and lead-free confirmed from distributor data. Halogen-free and conflict-minerals status not explicitly stated in available data.
