The 33888 is a single-package combination of a power die with four discrete high-side MOSFETs (two 10 mΩ and two 40 mΩ) and an integrated IC control die consisting of eight low-side drivers (600 mΩ each) with appropriate control, protection, and diagnostic features. Programming, control, and diagnostics are accomplished using a 16-bit SPI interface. Additionally, each high-side output has its own parallel input for pulse-width modulation (PWM) control if desired. The low sides share a single configurable direct input. The 33888 is available in two power packages.
Dual 10 mΩ High Side, Dual 40 mΩ High Side, Octal 600 mΩ Low Side
Full Operating Voltage of 6.0 V to 27 V
SPI Control of High-Side Overcurrent Limit, High Side Current Sense, Output OFF Open Load Detection, Output ON/OFF Control, Watchdog Timeout
SPI Reporting of Program Status and Fault
High-Side Analog Current Feedback with Selectable Ratio
Enhanced 16 V Reverse Polarity VPWR Protection