LM3550SPXSLASHNOPB datasheet(35/43 Pages) TI2

35 / 43 page

IFlash = 2.1A

(70% Flash)

TIME (20 ms/div.)

VALS = 500 mV

ICharge

(500 mA/div.)

IIN

(500 mA/div.)

STROBE

IFlash = 0A

(0% Flash)

TIME (20 ms/div.)

VALS = 1V

ICharge

(500 mA/div.)

IIN

(500 mA/div.)

STROBE

IFlash = 3A

TIME (40 ms/div.)

VCAP

2V/div.

ICharge

(500 mA/div.)

IIN

(500 mA/div.)

STROBE

EOCB

IFlash = 3A

(100% Flash)

TIME (20 ms/div.)

VALS = 100 mV

ICharge

(500 mA/div.)

IIN

(500 mA/div.)

STROBE

IFlash = 3A

TIME (20 ms/div.)

VCAP

2V/div.

ICharge

(500 mA/div.)

IIN

(500 mA/div.)

STROBE

EOCB

IFlash = 3A

TIME (40 ms/div.)

VCAP

2V/div.

ICharge

(500 mA/div.)

IIN

(500 mA/div.)

STROBE

EOCB

LM3550

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SNVS569C – MAY 2009 – REVISED OCTOBER 2016

Product Folder Links: LM3550

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Figure 66. Level-Sensitive Strobe

Figure 67. Flash With FGATE = 0

Figure 68. Flash With FGATE = 1

VALS = 100 mV

Figure 69. ALS Detect Zone 0

VALS = 500 mV

Figure 70. ALS Detect Zone 1

VALS = 1 V

Figure 71. ALS Detect Zone 2

9 Power Supply Recommendations

The LM3550 is designed to operate from an input supply range of 2.7 V to 5.5 V. This input supply must be well

regulated and provide the peak current required by the LED configuration.

LM3550SPX/NOPB Datasheet(PDF) 35 Page - Texas Instruments

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