Infineon Technologies PROFET™ Load Guard 12V High-Side Switches

Infineon Technologies PROFET™ Load Guard 12V High-Side Switches offer maximum load flexibility for multiple power distribution that provides protection functions and enhanced diagnostic capabilities. The high-side switches are equipped with adjustable overcurrent limitations to offer high reliability for protecting the system. These features ensure that PCB traces, connectors, and loads are protected in case of a short circuit to the ground. The load guard switches include a capacitive load switching mode implemented to charge big capacitive loads and reduce current peaks during the switch-on of capacitors. The device addresses different use cases for intelligent power distribution, including load supply protection, wire protection, and power supply protection.

The PROFET™ Load Guard 12V high-side switches are offered in a PG-TSDSO-14 package with a -40°C to 150°C operating junction temperature range.

Features

Capacitive load switching mode to charge big capacitive loads in the safe operation area
Automotive qualified in accordance with AEC Q100 Grade1 and ISO 26262-ready
Diagnostics:
- Proportional load current sense
- Open load in ON and OFF state
- Short circuit to ground and battery

Protection:
- Adjustable overcurrent limitation via an external resistor
- Absolute and dynamic temperature protection with restart control
Switch ON capability while inverse current condition (InverseON)

Applications

Driving resistive, inductive, and capacitive loads with currents up to 2A
ADAS and AD modules, including cameras, radar, ultrasonic, and LIDAR modules
Communication modules including antennas, BLUETOOTH^®, V2X, and Wi-Fi^®
Replaces electromechanical relays, fuses, and discrete circuits

Protection of system supply, load supply, and wires
Main switch for ECU power supply
Sensor heating elements
Future power distribution architectures

Specifications

3V minimum operating voltage (V_S(OP))
2.7V minimum cranking operating voltage (V_S(UV))
28V maximum operating voltage (V_S)
35V minimum overvoltage protection (V_{DS(CLAMP)_25})
0.5µA maximum current in sleep mode (I_{VS(SLEEP)_85})
4.5mA maximum operating current (I_GND(ACTIVE))
90mΩ typical ON-state resistance (R_{DS(ON)_25})

180mΩ maximum ON-state resistance (R_{DS(ON)_150})
2A nominal load current (I_L(NOM))
1000 typical current sense ratio (k_ILIS)
0.38A to 4.34A adjustable overcurrent limitation (I_LIM)
-40°C to +150°C operating junction temperature range (T_J)
4.9mm x 3.9mm PG-TSDSO-14 package

Infineon Technologies PROFET™ Load Guard 12V High-Side Switches

Features

Applications

Specifications

Typical Application Diagram

Block Diagram

husseinkey ELECTRONICS®

COMPANY