ZHCSRU8 February 2024
PRODUCTION DATA
The output voltage can be set using the VSEL pin. The resistor divider ratio for VSEL programs the VOUT_COMMAND range, VOUT_SCALE_LOOP divider, VOUT_MIN, and VOUT_MAX levels according to Table 6-12. Select the resistor divider code for the range of VOUT desired. For this 3.32V output example, two resistors to AGND and BP1V5 on VSEL pin can be used.
With the resistor divider code selected for the range of VOUT, select the resistor to AGND code with the VOUT_COMMAND offset and VOUT_COMMAND step from Table 6-13. To calculate the resistor to AGND code subtract the VOUT_COMMAND offset from the target output voltage and divide by the VOUT_COMMAND step. For this example, two resistors to AGND and BP1V5 were used and the result is R2G code 8 and RDIV code 9 per design tool. A 21.5kΩ resistor to AGND and a 12. kΩ resistor to BP1V5 at VSEL programs the desired setting.