Other Parts Discussed in Thread: TPS40428,
We are using TPS40425 in our projects at the moment. However due to material shortage, we are planning to use TPS40428 as an alternate part.
We see that both TPS40425 and TPS40428 are pin and footprint compatible. The only difference is that TPS40425 operates in non-smart power mode in default settings at power-up while TPS40428 operates in smart power mode at power-up. We are operating the TPS40425 in non-smart mode by pre-programming this part and not using the TSNS1 and TSNS2 pins. If TPS40428 is pre-programmed with non-smart power mode.
TI support engineer has confirmed that TPS40428 can be used as drop in replacement for TPS40425 and provided us the instruction to change the .csv file for TPS40428.
It looks like our programming files for TPS40425 matches the code change for register “0xFC” value from “0xc300” to “0xE001”.
But for register “0xE0” value from “0x1330” to “0x1301”, the existing code looks a little different from the slides:
- please see the hightlighted mismatch value, do we need to change to “0x1301”?
- for line 216 0xe0 value “0x1330”, do we need to change to “0x1301” as well? it is not mentioned in slides.
17-14534-02_SBAU1_Kobol_P2_POL_V2-1_nominal_20180320.csv107 Comment,"Write MFR_16 (COMM_EEPROM_TLO_SPARE) UNUSED:False, DIS_API_CNT:False, CH2_EN_1P6HIZ:True, CH1_EN_1P6HIZ:True"108 WriteWord,0xE0,0x133070109 ReadWord,0xE0,0x1330
215 Comment,"Read MFR_16 (COMM_EEPROM_TLO_SPARE) UNUSED:False, DIS_API_CNT:False, CH2_EN_1P6HIZ:True, CH1_EN_1P6HIZ:True"216 ReadWord,0xE0,0x1330
17-14535-02_U272_Kobol_P2_POL_V2-1_nominal_20180320.csv107 Comment,"Write MFR_16 (COMM_EEPROM_TLO_SPARE) UNUSED:False, DIS_API_CNT:False, CH2_EN_1P6HIZ:True, CH1_EN_1P6HIZ:True"108 WriteWord,0xE0,0x1330B4109 ReadWord,0xE0,0x1330110 Comment,"Write MFR_22 (P
215 Comment,"Read MFR_16 (COMM_EEPROM_TLO_SPARE) UNUSED:False, DIS_API_CNT:False, CH2_EN_1P6HIZ:True, CH1_EN_1P6HIZ:True"216 ReadWord,0xE0,0x1330
17-14536-03_U273_Kobol_P2_POL_V2-1_nominal_20180320_1.csv107 Comment,"Write MFR_16 (COMM_EEPROM_TLO_SPARE) UNUSED:False, DIS_API_CNT:False, CH2_EN_1P6HIZ:True, CH1_EN_1P6HIZ:True"108 WriteWord,0xE0,0x1330EC109 ReadWord,0xE0,0x1330
215 Comment,"Read MFR_16 (COMM_EEPROM_TLO_SPARE) UNUSED:False, DIS_API_CNT:False, CH2_EN_1P6HIZ:True, CH1_EN_1P6HIZ:True"216 ReadWord,0xE0,0x1330