MCZ33291 Datasheet | Freescale Semiconductor

.. 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 Acmodate 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 m A IDD During Operation - Pb-Free Packaging Designated by Suffix Code EG LOW-SIDE SWITCH DW SUFFIX EG SUFFIX (PB-FREE) 98ASB42344B 24-PIN SOICW ORDERING INFORMATION Device MC33291DW/R2 MCZ33291EG/R2 Temperature Range (TA) -40°C to 125°C Package 24 SOICW V PWR VPWR SFPD VDD CS MCU SCLK SI SO RESET OP 0 OP 1 OP 2 OP 3 OP 4 OP 5 OP 6 OP 7 GND Figure 1. 33291 Simplified Application Schematic Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. © Freescale Semiconductor,...