| CMD Address | B3h |
| Write Transaction: | Write Byte |
| Read Transaction: | Read Byte |
| Format: |
Unsigned Binary (1 byte) |
| NVM Backup: | EEPROM |
| Updates: | On-the-fly |
The PIN_SENSE_RES command selects the external
input current/power sense resistor value and related configurations. The supported
sensing resistor value ranges from 0.25 mΩ to 4 mΩ.
Return to Supported I2C and Default Values.
Figure 7-53 (B3h) PIN_SENSE_RES
Register Map| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| R | R | R | R | R | R/W | R/W | R/W |
| Reserved |
PIN_SENSE_RES |
| LEGEND: R/W = Read/Write; R = Read only |
Table 7-71 Register Field Descriptions| Bit | Field | Access | Reset | Description |
|---|
| 7:3 |
Reserved |
R |
00000b |
Not used and always set to
0. |
| 2:0 |
PIN_SENSE_RES |
R/W |
NVM |
These bits select the
external sensing resistor used for input current/power measurement.
See below table for more details. |
Table 7-72 Input Current/Power Sense Resistor Value and IIN_MAX
| PIN_SENSE_RES |
RSENSE used in a BOM (mΩ) |
Internal Gain (V/V) |
IIN_MAX (A) |
IIN LSB (A) |
| 000 |
4 |
12.5 |
16 |
0.0625 |
| 001 |
3 |
12.5 |
21.3 |
0.0833 |
| 010 |
2 |
25 |
16 |
0.0625 |
| 011 |
1 |
20 |
40 |
0.15625 |
| 100 |
1 |
25 |
32 |
0.125 |
| 101 |
0.5 |
40 |
40 |
0.15625 |
| 110 |
0.5 |
50 |
32 |
0.125 |
| 111 |
0.25 |
50 |
64 |
0.250 |