Brushless DC Drivers
Automotive Three-Phase MOSFET Driver with ASIL Compliance, Diagnostics, and Current Sensing
A4911
Markets Served
The A4911 is designed for safety-critical automotive applications requiring ASIL compliance. It provides integrated current sense amplifiers, extensive diagnostics, and a programmable gate drive for robust and reliable motor control.
Product Details
Product Details
Top Features
- ISO26262 Developed and Certified to ASIL-D
- 150°C Ambient operation
- 165°C minimum thermal shutdown
- Qualified to Q100 Grade 0
- Robust Gate Drive Design allowing up to -18V Negative Transients
- Extended diagnostics
- Gate drive monitors
- Overvoltage detectors
- Logic level, phase-state output
- Open load detect
- Programmable gate drive outputs
- Adjustable drive strength for slew rate limitation
- Adjustable output voltage level for gate drive limitation
- Programmable sense amplifiers
- Adjustable gain
- Adjustable offset
- No external components required
- Low offset drift
- SPI read back & parity bit
Target Application
Part Number Specifications and Availability
Design Tools
Technical Documentation
Application Note
Mosfet Slew-Rate Control with an Allegro Smart Gate Driver New
Application Note
Advanced Negative Voltage Transient Test for Gate Drivers in Automotive Applications
Application Note
Estimating Maximum MOSFET Switching Frequency
Technical Article