The 33816 is a SMARTMOS programmable gate driver IC for precision solenoid
control applications. The IC consists of five external MOSFET high-side predrivers
and seven external MOSFET low-side pre-drivers. The 33816 provides a
flexible solution for MOSFET’s gate drive with a versatile control and optimized
latency time. Gate drive, diagnosis, and protection are managed through four
independent microcores, and two Code RAM and two Data RAM banks.
The IC contains two internal voltage regulators with overvoltage and
undervoltage monitoring and protection. There are four current sense modules
and VDS monitoring for fault detection and annunciation via a serial peripheral
interface (SPI).
The device includes both individual charge pump outputs for each high-side predrivers
and a high-voltage DC-DC converter low-side pre-driver.
These features along with cost effective packaging, make the 33816 ideal for
powertrain engine control applications.
Features
• Battery voltage range, 5.0 V < VBATT < 32 V
• Pre-drive operating voltage up to 72 V
• High-side/ low-side pre-drive PWM capability up to 100 kHz–30 nC
• All pre-drivers have four selectable slew rates
• Eight selectable, pre-defined VDS monitoring thresholds
• Encryption for microcode protection
• Integrated 1.0 MHz back-up clock
• Programmable integrated End-of-Injection (EOI) measurement function (MC33816MAE only)

Applications
• Automotive (12 V), truck and industrial (24 V)
powertrain
• Diesel and gasoline direct injection
• Transmission