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L6920 dc-dc converter

Question asked by ashish g on Apr 15, 2010
Latest reply on Dec 23, 2011 by prasad.balmukund
We are using the L6920 to drive a 1 watt LED.
We are trying to implement the under voltage cut off (lock out) too. We chose the values of the voltage bridge connected to the LBI pin such that the value comes to say 3V. However, the IC did not shut off at 3V.
We then tried connecting the LBO to Vout with a 200K resistor in between. Even this did not work.
Can someone help implement this circuit?
Thanks!
Ashish

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