The BCM (MC33771CTP1AE) in sleep mode
Does above sequence is ok for generate the wake up sequence in TPL bus for MC33664A
Hi,
the time between the so call wake-up pulses needs to be exact:
The first pulse wakes up the device and starts a timer. If the second pulse is not received with the 500-700us the device considers the first pulse as "noise" and goes back to sleep.
The 2.6ms from your scope definitely violates this and the device will not wake-up properly.
For further details please see MC33771C datasheet Rev 6.0 - chapter 10.2.6.2. Pack controller system wake-up.
Rgds
W.
Hi,
the time between the so call wake-up pulses needs to be exact:
The first pulse wakes up the device and starts a timer. If the second pulse is not received with the 500-700us the device considers the first pulse as "noise" and goes back to sleep.
The 2.6ms from your scope definitely violates this and the device will not wake-up properly.
For further details please see MC33771C datasheet Rev 6.0 - chapter 10.2.6.2. Pack controller system wake-up.
Rgds
W.
