LM3556_14 datasheet(10/31 Pages) TI1

Part #	LM3556

Description	1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Source

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Manufacturer	TI1 [Texas Instruments]

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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

40 ms/DIV

100 mV/

DIV

VOUT

200 mA/

DIV

IIN

ILED

200 mA/

DIV

400 s/DIV

1A/DIV

VIN

200 mV/

DIV

ILED

IIN

1A/DIV

LM3556

SNVS796C – AUGUST 2011 – REVISED APRIL 2013

www.ti.com

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

Input Voltage Flash Monitor

Internal Indicator Operation

Report Mode with Default Settings

Figure 20.

Figure 21.

Input Voltage Flash Monitor

Stop and Hold Mode with Default Settings

Down Mode with Default Settings

Figure 22.

Figure 23.

Input Voltage Flash Monitor

Input Voltage Flash Monitor, Up and Down Mode

Up and Down Mode with Default Settings

(0mv Hysteresis, 1/2 Step Filter Time)

Figure 24.

Figure 25.

10

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