ZHCSGO0A June 2017 – February 2024 TPS549B22
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
The MFR_SPECIFIC_07 is a user-accessible register dedicated for configuring the device’s PGOOD threshold and external tracking options.
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| VPBAD | SPARE | 0 | TRKOPTION | VTRKIN[3:0] | |||
| R/W | R/W | R | R/W | R/W | |||
| LEGEND: R/W = Read/Write; R = Read only; -n = value after reset |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 7 | VPBAD | R/W | 1 | This bit allows the user to read/configure the PGOOD high and low thresholds. 0: PGOOD high and low thresholds are +16% and -16%, respectively 1: PGOOD high and low thresholds are +20% and -32%, respectively |
| 6 | SPARE | R/W | 0 | This bit allows the user to read/configure an EEPROM backed SPARE bit and corresponding digital block output. 0: pSPARE = 0 1: pSPARE = 1 |
| 5 | R | 0 | ||
| 4 | TRKOPTION | R/W | 0 | This bit allows the user to read/control whether the external TRKIN is enabled by a 425 mV threshold, or not. 0: TRKIN voltage must be above 425mV (that is, TRKINOK = 1) before switcher can be enabled. 1: TRKIN voltage does not need to be above 425mV before switcher can be enabled. |
| 3:0 | VTRKIN | R/W | 1111b | These bits allow the user to read/configure the device’s final TRKIN target voltage for external tracking operation. (Refer to Table 7-28) |
| VTRKIN[3] | VTRKIN[2] | VTRKIN[1] | VTRKIN[0] | Final TRKIN target voltage for external tracking operation |
|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 500 mV |
| 0 | 0 | 0 | 1 | 550 mV |
| 0 | 0 | 1 | 0 | 600 mV |
| 0 | 0 | 1 | 1 | 650 mV |
| 0 | 1 | 0 | 0 | 700 mV |
| 0 | 1 | 0 | 1 | 750 mV |
| 0 | 1 | 1 | 0 | 800 mV |
| 0 | 1 | 1 | 1 | 850 mV |
| 1 | 0 | 0 | 0 | 900 mV |
| 1 | 0 | 0 | 1 | 950 mV |
| 1 | 0 | 1 | 0 | 1.00 V |
| 1 | 0 | 1 | 1 | 1.05 V |
| 1 | 1 | 0 | 0 | 1.10 V |
| 1 | 1 | 0 | 1 | 1.15 V |
| 1 | 1 | 1 | 0 | 1.20 V |
| 1 | 1 | 1 | 1 | 1.25 V |