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BTS50085-1TMB

Smart high-side switch, 9mΩ RON, 44A, 12V automotive, PG-TO220-7

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Pieza del fabricante：

BTS50085-1TMB

Paquete：

PG-TO220-7-11 (through-hole, tab connected to Vbb)

Marca：
Categorías de productos：
Compromiso de calidad
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Descripción

Productos

The BTS50085-1TMB from Infineon Technologies is a PROFET+ smart high-side power switch integrating an N-channel vertical power FET with charge pump, current-controlled input, and diagnostic feedback. With 9 mΩ on-state resistance, 44A nominal load current, and comprehensive protection, it is designed for 12V automotive and industrial applications driving high-current resistive, capacitive, and inductive loads.

Especificaciones

On-State Resistance (RON) 9 mΩ typical @ 25°C
Nominal Load Current (IL(ISO)) 44A @ TC=85°C
Short Circuit Current Limit 90A
Operating Voltage (Vbb) 5.0V to 58V
Overvoltage Protection 70V (Vbb(AZ))
Current Sense Ratio (IL:IIS) 13,000:1
ESD Capability 4.0 kV (HBM)
Temperatura de funcionamiento -40°C to +150°C (junction)
Paquete PG-TO220-7-11 (7-pin through-hole)

Características

  • Ultra-low RON: 9 mΩ typical for minimal power dissipation
  • Integrated charge pump for N-channel gate drive
  • Current sense output proportional to load current (13,000:1 ratio)
  • Comprehensive protection: overcurrent, overtemperature, overvoltage
  • Short circuit protection with current limitation
  • Load dump protection up to 80V
  • Diagnostic feedback via IS pin (zero current on fault)
  • Reverse battery and ground disconnect protection

Aplicaciones

  • Automotive lighting (halogen, LED, HID ballast)
  • Heated windshield and seat heater control
  • Solenoid and valve driving in automotive systems
  • Industrial 12V/24V high-current load switching
  • PTC heater and blower motor control

The BTS50085-1TMB from Infineon is a PROFET+ smart high-side power switch with 9 mΩ on-resistance, 44A nominal load current, and 90A short-circuit current limit. Integrating an N-channel vertical power FET with charge pump, current sense (13,000:1 ratio), and comprehensive protection (OCP, OTP, OVP, load dump), it is designed for 12V automotive and industrial high-current load driving applications in a PG-TO220-7-11 package.

The BTS50085-1TMB integrates an N-channel vertical power MOSFET with all necessary control and protection circuitry. The internal charge pump generates a gate voltage above the supply rail to fully enhance the N-channel MOSFET, enabling the low 9 mΩ on-resistance. The current-controlled input pin (IN) activates the switch when pulled to ground. The IS pin provides a diagnostic sense current proportional to the load current at a 13,000:1 ratio, enabling real-time load monitoring. Protection circuits include overcurrent limitation (90A), overtemperature shutdown with auto-restart, overvoltage clamping at 70V, and load dump protection to 80V. The output clamp (VON(CL) = 62V) protects against inductive kickback when switching off inductive loads.

Pin Nombre Tipo Función
1,2,6,7 OUT Salida Output to load (all four pins must be shorted together)
3 EN Entrada Input control (active-low, activates switch when pulled to GND)
4 Vbb Potencia Positive supply (tab electrically connected; use tab for high-current)
5 IS Salida Diagnostic current sense output (proportional to IL; zero on fault)
  • Automotive lighting: halogen, LED, and HID ballast high-side switching
  • Heated windshield, seat heater, and PTC heater control
  • Solenoid and valve driving with inductive load protection
  • Industrial 12V/24V high-current load switching with diagnostics
  • Blower motor and cooling fan speed control
Fabricante Número de pieza Paquete Notas
Infineon BTS50080-1TMA TO-220-7 Similar, slightly different current rating
Infineon BTS5012SDA TO-252-5 Surface-mount, lower current alternative
ST VND5T100AJ PowerSSO-12 Similar smart high-side switch from ST
Infineon BTS50085-1TMBXUMA1 TO-220-7 Tape and reel version
Infineon BTS4140N SOT-223 Smaller, lower current (4A) version
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Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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