![]() ![]() Pulse by pulse current sensing on both power elements implements an effective constant current protection in the primary side. The 300 ns blanking time filters oscillations, generated by the transformer leakage inductance, making the solution more robust. The control loop is based on a peak current mode architecture and the device operates in forced PWM. The primary sink capability up to 1.9 A (even during soft-start) allows a proper energy transfer to the secondary side as well as enables a tracked soft-start of the secondary output. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio. ![]() ![]() Due to the P-Channel MOSFET as high-side power switch the device features 100% duty cycle operation. Description The L6986I is a device specifically designed for the isolated buck topology. ![]()
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