LM3556 datasheet(10/38 Pages) TI2

Part #	LM3556

Description	LM3556 1.5-A Synchronous Boost LED Flash Driver With High-Side Current Source

PDF	38 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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10 / 38 page

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

LM3556

SNVS796D – AUGUST 2011 – REVISED OCTOBER 2015

www.ti.com

Typical Characteristics (continued)

Figure 20. Input Voltage Flash Monitor Stop and Hold Mode

Figure 21. Input Voltage Flash Monitor Down Mode With

With Default Settings

Default Settings

0-mV Hysteresis

1/2 Step Filter Time

Figure 22. Input Voltage Flash Monitor Up and Down Mode

Figure 23. Input Voltage Flash Monitor, Up and Down Mode

With Default Settings

256-µs Flash Ramp

1/2 Step Filter Time

0-mV Hysteresis

512-ms Filter Time

Figure 25. Input Voltage Flash Monitor, Up and Down Mode

Figure 24. Input Voltage Flash Monitor, Up and Down Mode

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