TIDUEY5 January 2021
The key performances of the TIDA-010208 were tested in a TI lab, the end equipment used and test processes and results are described in this section.
Table 3-1 describes the connections for TIDA-010208 board.
Connector and Pin Assignments | Function or Schematic Net | Notes |
---|---|---|
BAT- | BAT- | Cell stack negative; this provides a reference for the electronics and the high current path from the cells |
BAT+ | BAT+ | Cell stack positive; this provides power for the high-side driver and the high current path from the cells |
PACK+ | PACK+ | Charger positive or load positive |
PACK- | PACK- | Charger negative or load negative |
P1-1 | GND | SBW program connector ground |
P1-2 | SBCLK | SBW program connector SBCLK |
P1-3 | SBIO | SBW program connector SBIO |
P1-4 | 3V3 | SBW program connector 3.3 V |
P2-1 | SCL | I2C communication SCL from bq76952, bq76942, bq769142, connect SCL_MCU or EV2400 SCL |
P2-2 | SCL_MCU | I2C communication SCL from MCU |
P2-3 | SDA | I2C communication SDA from bq76952, bq76942, bq769142, connect SDA_MCU or EV2400 SDA |
P2-4 | SDA_MCU | I2C communication SDA from MCU |
P3 | Cn | (n = 0 to 16) Cell monitor, balance, and electronics power connections. P3 is the connector with battery cells. |
P4-1 | CAN-H | High-level CAN BUS |
P4-2 | CAN-L | Low-level CAN BUS |
Use the following board selections: (1) BQ76942 for 10s, (2) BQ769142 for 14s, and (3) BQ76952 for 16s applications. When used for a variety of applications, different components should be assembled on the board based on Table 3-2.
Component | BQ76952 | BQ76942 | BQ769142 |
---|---|---|---|
R34 | NC | NC | 0 |
R35 | NC | NC | 0 |
R46 | NC | NC | 0 |
R47 | NC | 0 | NC |
R48 | NC | 0 | NC |
R49 | NC | 0 | NC |
R50 | NC | 0 | NC |
R62 | 0 | NC | 0 |
R63 | 0 | NC | 0 |
R64 | NC | 0 | NC |
R65 | 0 | NC | 0 |
R66 | NC | 0 | NC |
R67 | NC | 0 | NC |
R68 | 0 | NC | 0 |
R69 | 0 | NC | 0 |
R70 | 0 | NC | 0 |
R71 | NC | NC | 0 |
Other unconnected components | Q11, D14, C12 | R81, R60 |
Another easy way to test 10s–16s applications is to always use the BQ76952 device as the monitor, but short some input channels. Table 3-3 gives the guidance on how to do this with the TIDA-010208 board.
Cell Count | 15s | 14s | 13s | 10s |
---|---|---|---|---|
Cell15-Cell14 | Short | Short | Short | Short |
Cell14-Cell13 | - | Short | Short | Short |
Cell13-Cell12 | - | - | Short | Short |
Cell12-Cell11 | - | - | - | Short |
Cell11-Cell10 | - | - | - | Short |
Cell10-Cell9 | - | - | - | Short |
Regarding secondary protection, the BQ77216 EVM is used to test the performance.