Isolated LED driver , comprising: - an LLC converter, comprising an LLC current transformer (L51); - a control unit controlling at least one switch on a primary side of an isolation stage of the LED driver , - means for detecting a voltage on a secondary side of the isolation stage and producing a voltage-representing signal, - means for detecting a current flowing on the secondary side (L52), and producing a current representing signal, - means for combining the current representing signal with the voltage representing signal and feeding it to an input pin (OVP_SCP_PIN) of the control unit, wherein the current representing signal is supplied to a further input (ISNS_PK, ISNS_AVG) of the control unit for a feedback control of a LED load current, wherein the control unit is further configured to compare the current representing signal with a threshold value in order to derive a frequency, a duty cycle value or an actuating variable for the LLC current transformer, wherein the means for combining the current representing signal further comprises a diode (D50) for combining the current representing signal with the voltage representing signal to obtain a total signal (PA3), and wherein the control unit further comprises a comparator configured to compare the total signal to a threshold value and, if the total signal is higher than the threshold value, to detect a short-circuit condition or an over voltage condition. - an LLC converter, comprising an LLC current transformer (L51); - a control unit controlling at least one switch on a primary side of an isolation stage of the LED driver , - means for detecting a voltage on a secondary side of the isolation stage and producing a voltage-representing signal, - means for detecting a current flowing on the secondary side (L52), and producing a current representing signal, - means for combining the current representing signal with the voltage representing signal and feeding it to an input pin (OVP_SCP_PIN) of the control unit, wherein the current representing signal is supplied to a further input (ISNS_PK, ISNS_AVG) of the control unit for a feedback control of a LED load current, wherein the control unit is further configured to compare the current representing signal with a threshold value in order to derive a frequency, a duty cycle value or an actuating variable for the LLC current transformer, wherein the means for combining the current representing signal further comprises a diode (D50) for combining the current representing signal with the voltage representing signal to obtain a total signal (PA3), and wherein the control unit further comprises a comparator configured to compare the total signal to a threshold value and, if the total signal is higher than the threshold value, to detect a short-circuit condition or an over voltage condition. wherein the current representing signal is supplied to a further input (ISNS_PK, ISNS_AVG) of the control unit for a feedback control of a LED load current, wherein the control unit is further configured to compare the current representing signal with a threshold value in order to derive a frequency, a duty cycle value or an actuating variable for the LLC current transformer, wherein the means for combining the current representing signal further comprises a diode (D50) for combining the current representing signal with the voltage representing signal to obtain a total signal (PA3), and wherein the control unit further comprises a comparator configured to compare the total signal to a threshold value and, if the total signal is higher than the threshold value, to detect a short-circuit condition or an over voltage condition. <EOS>