ZHCSGE0B June 2017 – January 2019 TPS53681
PRODUCTION DATA.
The MFR_SPECIFIC_10 command is used to configure input current sensing, and set the maximum output current. These values are used for input current and output current telemetry.
The MFR_SPECIFIC_10 command must be accessed through Write Word/Read Word transactions. MFR_SPECIFIC_10 is a paged register. In order to access MFR_SPECIFIC_10 command for channel A, PAGE must be set to 00h. In order to access the MFR_SPECIFIC_10 register for channel B, PAGE must be set to 01h. Note that input current calibration is shared across both channels, but the configuration makes use of both PAGEs.
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RW | RW | RW | RW | R | RW | RW | RW |
| IIN_MAX (PAGE 0, bits 15:8)
IIN_GAIN_CTRL (PAGE 1, bit 13) IIN_OFS (PAGE 1, bits 12:8) |
|||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| RW | RW | RW | RW | RW | RW | RW | RW |
| IOUT_MAX (PAGE 0, PAGE 1) | |||||||
| LEGEND: R/W = Read/Write; R = Read only |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 15:8 | IIN_MAX (PAGE 0) | RW | NVM | Maximum IIN setting. LSB = 0.25 A. Valid values range from 0 A to 63.75 A. |
| 13 | IIN_GAIN_CTRL (PAGE 1) | RW | NVM | Used to increase the effective IIN_RGAIN. See MFR_SPECIFIC_12 for more information. |
| 12:8 | IIN_OFS (PAGE 1) | RW | NVM | Input current sense offset calibration. See Table 16. |
| 7:0 | IOUT_MAX | RW | NVM | Sets the maximum output current for each channel (PAGE 0 for channel A, PAGE 1 for channel B). LSB = 1 A. |
| IIN_OFS (hex) | IIN Offset (A) |
|---|---|
| 00h | 0 |
| 01h | 0.1 |
| 02h | 0.2 |
| 03h | 0.3 |
| 04h | 0.4 |
| 05h | 0.5 |
| 06h | 0.6 |
| 07h | 0.7 |
| 08h | 0.8 |
| 09h | 0.9 |
| 0Ah | 1.0 |
| 0Bh | 1.1 |
| 0Ch | 1.2 |
| 0Dh | 1.3 |
| 0Eh | 1.4 |
| 0Fh | 1.5 |
| 10h | -1.6 |
| 11h | -1.5 |
| 12h | -1.4 |
| 13h | -1.3 |
| 14h | -1.2 |
| 15h | -1.1 |
| 16h | -1.0 |
| 17h | -0.9 |
| 18h | -0.8 |
| 19h | -0.7 |
| 1Ah | -0.6 |
| 1Bh | -0.5 |
| 1Ch | -0.4 |
| 1Dh | -0.3 |
| 1Eh | -0.2 |
| 1Fh | -0.1 |