MCZ33291

www.DataSheet4U.com Freescale Semiconductor Technical Data Document Number: MC33291 Rev. 4.0, 10/2006 Eight-Output Switch with Serial Peripheral Interface I/O The 33291 device is an eight-output, low-side power switch with 8bit serial input control. The 33291 is a versatile circuit designed for automotive applications, but is well suited for other environments. The 33291 incorporates SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and DMOS power MOSFETs. The 33291 interfaces directly with a microcontroller to control various inductive or incandescent loads. The circuit’s innovative monitoring and protection features include very low standby current, SPI cascade fault reporting capability, internal 53 V clamp on each output, output-specific diagnostics, and independent shutdown of outputs. The device is parametrically specified over an ambient temperature range of -40°C ≤ TA ≤ 125°C and 9.0 V ≤ VPWR ≤ 16 V supply. Features Designed to Operate Over Wide Supply Voltages of 5.5 V to 26.5 V Interfaces to Microprocessor Using 8-Bit SPI I/O Protocol up to 3.0 MHz 1.0 A Peak Current Outputs with Maximum RDS(ON) of 1.6 Ω at TJ 150°C Outputs Current-Limited to Accommodate In-Rush Currents Associated with Switching Incandescent Loads Output Voltages Clamped to 53 V During Inductive Switching Maximum Sleep Current (IPWR) of 25 µA Maximum of 4.0 mA IDD During Operation Pb-Free Packaging Designated by Suffix Code EG 33291 LOW-SIDE SWITCH DW SUFFIX E...