ZHCSBB6H April 2012 – November 2017 LM34927
PRODUCTION DATA.
UVLO resistors RUV1 and RUV2 set the undervoltage lockout threshold and hysteresis according to Equation 22 and Equation 23.
Where IHYS = 20 μA, typical.
For a UVLO hysteresis of 2.5 V and UVLO rising threshold of 20 V, Equation 22 and Equation 23 require RUV1 of 8.25 kΩ and RUV2 of 127 kΩ and these values are selected for this design example.