L9524C Datasheet | STMicroelectronics

Features - Quad gate driver for external N-channel Power MOSFETs in high-side configuration: - Gates driven by PWM output signal - Adjustable gate charge/discharge currents - Limited gate-to-source voltages - Negative clamping for inductive loads - Advanced run-off control - Regulation of the power through the glow plugs - Control output for external relay driver - Battery-voltage-patible two-wire interface - Supply voltage monitoring with shutdown - Battery voltage monitoring with shutdown - Junction temperature monitoring with shutdown - Monitoring of currents through the glow plugs with shutdown at overcurrent (adjustable threshold) - Monitoring of external switches - Charge pump voltage monitoring with shutdown - Active clamping during load dump SO24 Description The L9524C is a control IC for up to six glow plugs of diesel engines. The glow plugs are switched by up to four external PWM-controlled N-channel Power MOSFETs or a single relay in high-side configuration. Supply voltage, battery voltage, junction temperature, switches, currents through the glow plugs, and charge pump voltage are monitored. A two-wire interface is used to municate with the diesel engine management system. Table 1. Device summary Order code L9524C L9524C-TR Package SO24 SO24 Packing Tube Tape and reel September 2013 Rev 4 1/27 .st. Contents Contents Block diagram - - - - - - - - - . 5 Pins description -...