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 r...