What is Hiccup Mode / Hiccup Protection?

Power
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Hiccup mode is a form of over current protection that is available in certain power supplies and LED Drivers. The advantage to Hiccup Mode or Hiccup protection is that when an output overcurrent or short is detected the driver/supply will enter into “Hiccup Mode” and will stay in this mode protecting the supply until the fault is removed.

While in hiccup mode, usually the supply will repeatedly turn off and (briefly) on again until the overcurrent condition is no longer present. Once the fault is removed the supply will resume normal operation without having to cycle the power as you would do with many latching protection circuits.

While there is not a specific callout in our filters for Hiccup mode you will find supplies and drivers listed with OCP (Over Current Protection) in the features box.

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When looking in the datasheet for these drivers/Supplies you will see the type of overcurrent protection.

Meanwell Hiccup Protection Note:
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ERP Power Hiccup Protection Note:
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Samsung Latching Protection Note:
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Hi, Welcome to Tech Forum. The Hiccup mode, recovers automatically after fault condition is removed for the load protection. But the LRS-150 still lists voltage overload as protection mode and will shut down o/p voltage, re-power on to recovery, would need to be restarted. The Hiccup mode is only listed on the overload, not the voltage load. Both of these would have the same Voltage Overload restart.

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Crowbar mode: The supply cuts off the output voltage until its input power is cycled (turned off and on again)

Hiccup mode: The supply repeatedly turns off and (briefly) on again until the overcurrent condition is no longer present