▪ ASIL-D Functional Safety
▪ 42V boost and buck integrated driver controller
▪ FET drivers support source/sink current of 1A/1A
for high-side, and 1A/1.5A for low-side
▪ Low IQ with ECM mode of 8μA typical (buck Channel 1 only)
▪ Separate or Combined Wake (Enable) inputs for each channel
▪ Minimized FET ON and OFF times (25ns and 45ns)
▪ High-efficiency buck exceeding 80% at 10mA
▪ Buck frequency options 440kHz or 2.2MHz
▪ Boost frequency options 440kHz or 2.2MHz
(2.2MHz Boost requires 2.2MHz Buck frequency)
▪ VBATS sense for boost enable during cold crank
▪ Optional pseudo-random spread spectrum clocking
▪ External synchronization using SYNC pin
▪ Dual Over-temperature protection monitors
▪ Extensive protection mechanisms for OV/UV/OC/OT
▪ 6x6mm 36Ld SC-QFN package
▪ AEC-Q100 grade 1 qualified
▪ Functional Safety Features
• Built-in Self Test (LBIST and ABIST) at power up
• Recurring Checks: Internal References, PWM
clock, System Clock, PGND/AGND connection,
Dual Over-Temperature monitor, VCC supply, Logic Pin Stuck Low.
• Independent References and feedback sense
paths for Buck and Boost OV/UV detection
• Independent Fault Indicators for Buck and Boost
• Fail-Safe Output, logic high indicates a trusted
device state and all safety monitors are active.