ZHCSRU8 February 2024
PRODUCTION DATA
Only the loop controller device needs a resistor divider at the VSEL pin to program the output voltage. The VSEL pin of loop follower devices are not used. The resistor divider code selected for this 3.32V output example using Table 6-12 is two resistors to AGND and BP1V5. 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 the Table 6-13. With VOUT = 3.32V, VOUT_COMMAND(Offset) = 3V and VOUT_COMMAND(STEP) = 0.04, the result is R2G code 8. A 21.5kΩ resistor to AGND and 12.1kΩ to BP1V5 at VSEL programs the desired setting.