Datasheet

USB Interface Board and I

C-Compatible Interface Program

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5.4 Flash Duration Register (0x04)

This register sets the LM3565’s flash duration. The register value and the corresponding time setting are displayed.

Figure 18. Flash Duration Register

5.5 Strobe Register (0x05)

If “Strobe Enable” is selected, only STROBE operations are allowed. Deselect this button to turn the part on/off using only I

C commands.

If the “PWM Enable” bit is set, the programmed flash current will be reduced by the amount selected in the “PWM reduction” dropdown menu,

when the voltage on the STROBE pin is logic low. The full programmed value is resumed when STROBE is high.

Strobe mode can be set to Level (default) or Edge.

“Strobe Logic Level” sets the STROBE pin input logic threshold to either 1.2V or 1.8V.

LM3565EVM User's Guide SNVU195A–FEBRUARY 2013–Revised MAY 2013

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