SNVSBA4A May 2019 – November 2019 TL431LI-Q1 , TL432LI-Q1
PRODUCTION DATA.
For TL43xLI-Q1 to properly be used as a control component in this circuit, the minimum operating current needs to be reached. This is accomplished by setting the external biasing resistor in series with the TL43xLI-Q1.
For TL43xLI, the minimum operating current is 0.6 mA and with margin consideration, most of the designs set this current to be higher than 0.6 mA. To achieve lower power consumption, consider devices such as the ATL43x-Q1 and ATL43xLI-Q1.