Datasheet

Device description L6730 - L6730B
26/52 Doc ID 11938 Rev 3
If the current is higher than the valley OCP threshold during the off-time, the high-side
MOSFET(s) will not be turned ON. In this way the maximum current can be limited
(Figure 22).
During the constant-current-protection if the Vout becomes lower than 80% of the
programmed value an UV (under-voltage) is detected and the device enters in HICCUP
mode. The under-voltage-lock-out (UVLO) is adjustable by the multifunction pin (see
Chapter 5.10 on page 27). It’s possible to set two different thresholds:
● 4.2 V for 5 V bus
● 8.6 V for 12 V bus
Figure 20. Peak overcurrent-protection in constant-current-protection (L6730B)
Figure 21. Peak OCP in case of heavy overcurrent (L6730B)
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OUT
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ON
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OUT
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Peak th
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OUT
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OUT