ZHCSQY3 march 2023 TPS546D24S
PRODUCTION DATA
The resistor divider for the ADRSEL pin selects the range of PMBus Addresses and SYNC direction for the TPS546D24S. For Stand Alone devices with only one device supporting a single output voltage, the ADRSEL divider also selects the Phase Shift between SYNC and the switch node.
| RESISTOR DIVIDER CODE | DEVICE_ADDRESS | SYNC IN / SYNC OUT | STACK_CONFIG = 0x0000 (STAND-ALONE ONLY) | |
|---|---|---|---|---|
| — | Range | — | PHASE SHIFT | INTERLEAVE |
| Short to AGND | 0x7F (127d) | Auto Detect | 0 | 0x0020 |
| Float | EEPROM (0x24h / 36d) | Auto Detect | 0 | 0x0020 |
| None | 16d - 31d | Auto detect | 0 | 0x0020 |
| 0 | 16d - 31d | Sync in | 0 | 0x0040 |
| 1 | 32d - 47d | Sync in | 0 | 0x0040 |
| 2 | 16d - 31d | Sync in | 90 | 0x0041 |
| 3 | 32d - 47d | Sync in | 90 | 0x0041 |
| 4 | 16d - 31d | Sync in | 120 | 0x0031 |
| 5 | 32d - 47d | Sync in | 120 | 0x0031 |
| 6 | 16d - 31d | Sync in | 180 | 0x0042 |
| 7 | 32d - 47d | Sync in | 180 | 0x0042 |
| 8 | 16d - 31d | Sync in | 240 | 0x0032 |
| 9 | 32d - 47d | Sync in | 240 | 0x0032 |
| 10 | 16d - 31d | Sync in | 270 | 0x0043 |
| 11 | 32d - 47d | Sync in | 270 | 0x0043 |
| 12 | 16d - 31d | Sync out | 0 | 0x0020 |
| 13 | 32d - 47d | Sync out | 0 | 0x0020 |
| 14 | 16d - 31d | Sync out | 180 | 0x0042 |
| 15 | 32d - 47d | Sync out | 180 | 0x0042 |
The resistor to AGND for ADRSEL programs the device PMBus loop follower address according to Table 7-15:
| RESISTOR TO AGND CODE | DEVICE ADDRESS (16-31 RANGE) | DEVICE ADDRESS (32-47 RANGE) |
|---|---|---|
| 0 | 0x10h (16d) | 0x20h (32d) |
| 1 | 0x11h (17d) | 0x21h (33d) |
| 2 | 0x12h (18d) | 0x22h (34d) |
| 3 | 0x13h (19d) | 0x23h (35d) |
| 4 | 0x14h (20d) | 0x24h (36d) |
| 5 | 0x15h (21d) | 0x25h (37d) |
| 6 | 0x16h (22d) | 0x26h (38d) |
| 7 | 0x17h (23d) | 0x27h (39d) |
| 8 | 0x18h (24d) | 0x48h (72d) |
| 9 | 0x19h (25d) | 0x29h (41d) |
| 10 | 0x1Ah (26d) | 0x2Ah (42d) |
| 11 | 0x1Bh (27d) | 0x2Bh (43d) |
| 12 | 0x1Ch (28d) | 0x2Ch (44d) |
| 13 | 0x1Dh (29d) | 0x2Dh (45d) |
| 14 | 0x1Eh (30d) | 0x2Eh (46d) |
| 15 | 0x1Fh (31d) | 0x2Fh (47d) |
When a TPS546D24S device is configured as the loop controller of a multi-phase stack, the device always occupies the zero-degree position in (37h) INTERLEAVE, but the ADRSEL resistor divider can still be used to select Auto Detect, Forced SYNC_IN, and Forced SYNC_OUT. When the loop controller of a multi-phase stack is configured for SYNC_IN, all devices of the stack remain disabled until a valid external SYNC signal is provided.