Abstract: A method for charge control of a photoflash capacitor. The method includes detecting a voltage on the photoflash capacitor, asserting and then latching a recharge signal when the detected voltage is lower than a first reference voltage, de-asserting and then latching the recharge signal when the detected voltage exceeds a second reference voltage, charging the photoflash capacitor when the recharge signal is asserted, and providing a pin for connection of a resistive element which determines the first reference voltage.

Abstract: A method for charge control of a photoflash capacitor. The method includes generating an input current to induce a charge current for the photoflash capacitor when an activation signal is asserted, detecting a first voltage from the photoflash capacitor and a second voltage corresponding to the input current, asserting and de-asserting a recharge signal respectively when the first detected voltage is lower and higher than a first reference voltage, asserting and de-asserting a current limit signal respectively when the second detected voltage is higher and lower than a second reference voltage, asserting the activation signal only when the recharge signal is asserted and the current limit signal is de-asserted, and providing a pin for connection of a resistive element which determines the second reference voltage.