L9352B-LF STMicroelectronics

L9352B Intelligent quad (2 x 5A / 2 x 2.5A) low-side switch Features Quad low-side switch 2 x 5 A designed as conventional switch 2 x 2.5 A designed as switched current- regulator Low ON-resistance 4 x 0.2 (typ.) PowerSO-36 - package with integrated cooling PowerSO-36 area Integrated free-wheeling and clamping Z- diodes status push-pull stages Output slope control Electrostatic discharge (ESD) protection Short circuit protection Selective overtemperature shutdown Description Open load detection The L9352B is an integrated quad low-side power Ground and supply loss detection switch to drive inductive loads like valves used in External clock control ABS systems. Two of the four channels are current regulators with current range from 0 mA to Recirculation control 2.25 A. Regulator drift detection All channels are protected against fail functions. Regulator error control They are monitored by a status output. Status monitoring Table 1. Device summary (1) Order code Package Packing L9352B-LF PowerSO-36 Tray L9352B-TR-LF PowerSO-36 Tape and reel 1. ECOPACK package (see Section 6: Package information). September 2013 Rev 7 1/27 www.st.com 1Contents L9352B Contents 1 Block diagram 5 2 Pins description 6 3 Electrical specifications 8 3.1 Absolute maximum ratings . 8 3.2 Thermal data . 9 3.3 Operating range . 9 3.4 Electrical characteristics 10 4 Functional description 13 4.1 Overview . 13 4.2 Input circuits . 13 4.3 Output stages (not regulated) channel 1 and 2 13 4.4 Current-regulator-stages channel 3 and 4 13 4.5 Protective circuits . 15 4.6 Error detection . 15 4.7 Drift detection (regulated channels only) . 17 4.8 Other test modes . 17 4.9 Diagnostic . 18 5 Timing diagrams . 19 5.1 Non regulated channels 19 5.2 Regulated channels (timing diagrams of diagnostic with 2kHz PWM input signal) 22 6 Package information 25 7 Revision history . 26 2/27