It is built by International Rectifier,El Segundo, Calif. (irf.com), and lets engineers adjust the setpoint voltage between 10.7 and 16.0 V using the Local Interconnect Network communications protocol. Controlling slew rate and filtering the interface lines makes the device electromagnetically compatible. It uses thick-film hybrid technology for reliable hightemperature operation (40 to 150°F). Laser-trimmed resistors are set to within 1% of their face value. The regulator consists of a control ASIC attached using flip-chip technology to save space, a discrete low-side power MOSFET, a recirculation diode, and several passive components. Standby current is under 200 A, and it has protection against short circuits and full diagnostics.
Network controls car voltage
The IRVR101, an alternator voltage regulator, lets users adjust the setpoint voltage of automotive-charging systems that need optimized alternator control.