10

LM3554

SNVS549C – JUNE 2009 – REVISED FEBRUARY 2016

www.ti.com

Product Folder Links: LM3554

Submit Documentation Feedback

Copyright © 2009–2016, Texas Instruments Incorporated

Typical Characteristics (continued)

unless otherwise specified.

(1)

The typical curve for overvoltage protection (OVP) is measured in closed loop using the Typical Application Circuit. The OVP value is

Characteristics is found in an open-loop configuration by ramping the voltage at OUT until the OVP comparator trips. The closed loop

data can appear higher due to the stored energy in the inductor being dumped into the output capacitor after the OVP comparator trips.

At worst case is an open circuit condition where the output voltage can continue to rise after the OVP comparator trips by approximately

(1)

(Torch Brightness Register Bits[7:6] = 00)

(Torch Brightness Register Bits[7:6] = 01)

(Torch Brightness Register Bits[7:6] = 10)