ZHCSI91B November 2017 – July 2018 DRV8304
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
請參考 PDF 數據表獲取器件具體的封裝圖。
The CSA control register is shown in Figure 44 and described in Table 18.
Register access type: Read/Write
| 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| Reserved | VREF
_DIV |
LS
_REF |
CSA_GAIN | DIS
_SEN |
SPI
_CAL |
AUTO
CAL |
Reserved | SEN_LVL | ||
| R/W-0b | R/W-1b | R/W-0b | R/W-10b | R/W-0b | R/W-0b | R/W-0b | R/W-0b | R/W-11b | ||
| Bit | Field | Type | Default | Description |
|---|---|---|---|---|
| 10 | Reserved | R/W | 0b |
Reserved |
| 9 | VREF_DIV | R/W | 1b |
0b = Sense amplifier reference voltage is VREF (unidirectional mode) 1b = Sense amplifier reference voltage is VREF divided by 2 |
| 8 | LS_REF | R/W | 0b |
0b = VDS_OCP for the low-side MOSFET is measured across SHx to SPx 1b = VDS_OCP for the low-side MOSFET is measured across SHx to SNx |
| 7-6 | CSA_GAIN | R/W | 10b |
00b = 5-V/V shunt amplifier gain 01b = 10-V/V shunt amplifier gain 10b = 20-V/V shunt amplifier gain 11b = 40-V/V shunt amplifier gain |
| 5 | DIS_SEN | R/W | 0b |
0b = Sense overcurrent fault is enabled 1b = Sense overcurrent fault is disabled |
| 4 | SPI_CAL | R/W | 0b |
0b = Disable sense amplifier CAL function 1b = Enable sense amplifier CAL function |
| 3 | AUTOCAL | R/W | 0b |
0b = AUTOCAL operation remains disabled in run mode 1b = Perform AUTOCAL operation |
| 2 | Reserved | R/W | 0b |
Reserved |
| 1-0 | SEN_LVL | R/W | 11b |
00b = Sense OCP 0.25 V 01b = Sense OCP 0.5 V 10b = Sense OCP 0.75 V 11b = Sense OCP 1 V |