ZHCSJP1B May 2019 – October 2022 TPS65987DDJ
PRODUCTION DATA
To enable the setting of multiple I2C addresses using a single TPS65987DDJ pin, a resistor divider is placed externally on the ADCIN2 pin. The internal ADC then decodes the address from this divider value. Figure 8-29 shows the decoding.
Table 8-4 lists the external divider needed to set bits [3:1] of the I2C Unique Address.
DIV = R2/(R1+R2)(1) | I2C UNIQUE ADDRESS [3:1] | |
---|---|---|
DIV_min | DIV_max | I2C_ADDR_DECODE |
Short ADCIN2 to GND | 000b | |
0.20 | 0.38 | 001b |
0.40 | 0.58 | 010b |
Short ADCIN2 to LDO_3V3 | 011b |