SLVSH95 July 2024 TPS546C25
ADVANCE INFORMATION
The pinstrapping table for MSEL2 is shown below. The pinstrap options for GAIN (GAIN1, GAIN2, or GAIN3) and RAMP (RAMP1 or RAMP2) in the table below can be changed in register COMP. MSEL2 programming for RAMP and GAIN can be overridden with the NVM values from COMP by setting the OVRD_RAMP and OVRD_GAIN bits in (D8h) PIN_DETECT_OVERRIDE
The defaults for the GAIN and RAMP values are:
| RESISTOR (kΩ) | Switching Frequency (FSW) (kHz) | GAIN | RAMP |
|---|---|---|---|
| < 1.78 | 600 | GAIN1 | RAMP1 |
| 2.21 | RAMP2 | ||
| 2.74 | GAIN2 | RAMP1 | |
| 3.32 | RAMP2 | ||
| 4.02 | GAIN3 | RAMP1 | |
| 4.87 | RAMP2 | ||
| 5.9 | 800 | GAIN1 | RAMP1 |
| 7.32 | RAMP2 | ||
| 9.09 | GAIN2 | RAMP1 | |
| 11.3 | RAMP2 | ||
| 14.3 | GAIN3 | RAMP1 | |
| 18.2 | RAMP2 | ||
| 22.1 | 1000 | GAIN1 | RAMP1 |
| 26.7 | RAMP2 | ||
| 33.2 | GAIN2 | RAMP1 | |
| 40.2 | RAMP2 | ||
| 49.9 | GAIN3 | RAMP1 | |
| 60.4 | RAMP2 | ||
| 76.8 | 1400 | GAIN1 | RAMP1 |
| 102 | RAMP2 | ||
| 137 | GAIN2 | RAMP1 | |
| 174 | RAMP2 | ||
| 243 | GAIN3 | RAMP1 | |
| > 412 | RAMP2 |
| RESISTOR (kΩ) | Switching Frequency (FSW) (kHz) | Over-Current Limit (OCL) (A) |
|---|---|---|
| < 1.78 | 600 | 100% |
| 2.21 | ||
| 2.74 | 80% | |
| 3.32 | ||
| 4.02 | 60% | |
| 4.87 | ||
| 5.9 | 800 | 100% |
| 7.32 | ||
| 9.09 | 80% | |
| 11.3 | ||
| 14.3 | 60% | |
| 18.2 | ||
| 22.1 | 1000 | 100% |
| 26.7 | ||
| 33.2 | 80% | |
| 40.2 | ||
| 49.9 | 60% | |
| 60.4 | ||
| 76.8 | 1400 | 100% |
| 102 | ||
| 137 | 80% | |
| 174 | ||
| 243 | 60% | |
| > 412 |