hi,everyboby:
I have a question about BQ24450.
We found the dead MJD32CT4(Q1 at below schematic) at production line.
So I am checking now what problem is.
<test condition>
- no VIN (doesn't insert 16V)
- 13V battery is connected
I measured MJD32CT4 Emitter and Base voltage.
- Emitter voltage = 0V
- Base voltage = 6.7V (This is same position as DRVC of bq24450)
In this case, the measured MJD32CT4 VEB(emitter - base voltage) is 6.7V and this exceeds the absolute max. rating (VEB = -5V).
<Question>
1. Is my measurement right?
2. Is it right that the voltage of DRVC (PIN16 of bq24450) is 6.7V ?
3. Is this problem?
