i have designed the pcb using bq76pl536 to monitor 5 cells. we have made 5 board to test the circuit. the component used are as shown in the reference schematic in datasheet, but in local market we could get component to solder only 2 board which are working fine.
but for rest 3 board, we decided to use some equivalent of them. the list are
| Datasheet reference schematic name | Over schematic name | Component | Number | Alternate component mouser number used |
| Q2,Q4,Q6,Q7,Q8,Q9 | MFT1,MFT2,MFT3,MFT4,MFT5 | mosfet | FDN359AN | 512-NDS351AN |
| Q5 | MFT6 | mosfet | 2N7002LT1 | 512-2N7002MTF |
| Z1,Z3,Z5,Z7,Z9,Z11 | DZ1, DZ3, DZ5, DZ7, DZ9 | Diode | MMSZ5221BT1G | |
| Z2,Z4,Z6,Z8,Z10,Z12 | DZ2, DZ4, DZ6, DZ8, DZ10 | Diode | MMSZ5221BT1G |
Please refer the datasheet page number 48 for the schematic.
But all these above components are heating when battery is connected. i am not able to find the actual cause of heating in the 3 board soldered with alternate component.
can anyone please help.
