LM3556_15 Datasheet, PDF (10/39 Pages) Texas Instruments – Synchronous Boost LED Flash Driver With High-Side Current Source

LM3556
SNVS796D – AUGUST 2011 – REVISED OCTOBER 2015
Typical Characteristics (continued)
VIN
ILED
IIN
400 s/DIV
200 mV/
DIV
1A/DIV
1A/DIV
VIN
ILED
IIN
400 s/DIV
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200 mV/
DIV
1A/DIV
1A/DIV
Figure 20. Input Voltage Flash Monitor Stop and Hold Mode
With Default Settings
VIN
ILED
IIN
200 mV/
DIV
1A/DIV
1A/DIV
Figure 21. Input Voltage Flash Monitor Down Mode With
Default Settings
VIN
ILED
IIN
200 mV/
DIV
1A/DIV
1A/DIV
400 s/DIV
0-mV Hysteresis
400 s/DIV
1/2 Step Filter Time
Figure 22. Input Voltage Flash Monitor Up and Down Mode
With Default Settings
VIN
ILED
IIN
200 mV/
DIV
1A/DIV
1A/DIV
Figure 23. Input Voltage Flash Monitor, Up and Down Mode
VIN
ILED
IIN
200 mV/
DIV
1A/DIV
1A/DIV
0-mV Hysteresis
400 s/DIV
512-ms Filter Time
400 s/DIV
256-µs Flash Ramp 1/2 Step Filter Time
Figure 24. Input Voltage Flash Monitor, Up and Down Mode
Figure 25. Input Voltage Flash Monitor, Up and Down Mode
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