LM3554TME/NOPB National Semiconductor, LM3554TME/NOPB Datasheet - Page 21
![IC LED DVR PHOTO FLASH 16-USMD](/photos/6/51/65155/tmd16cca_sml.jpg)
LM3554TME/NOPB
Manufacturer Part Number
LM3554TME/NOPB
Description
IC LED DVR PHOTO FLASH 16-USMD
Manufacturer
National Semiconductor
Type
Photo Flash LED (I²C Interface)r
Datasheet
1.LM3554TMENOPB.pdf
(40 pages)
Specifications of LM3554TME/NOPB
Constant Current
Yes
Topology
High Side, Step-Up (Boost)
Number Of Outputs
2
Internal Driver
Yes
Type - Primary
Flash/Torch
Type - Secondary
White LED
Frequency
2MHz
Voltage - Supply
2.7 V ~ 5.5 V
Voltage - Output
5V
Mounting Type
Surface Mount
Package / Case
16-MicroSMD
Operating Temperature
-30°C ~ 85°C
Current - Output / Channel
600mA
Internal Switch(s)
Yes
Efficiency
90%
Led Driver Application
LED Backlighting, Portable Electronics
No. Of Outputs
2
Output Current
1.2A
Input Voltage
2.7V To 5.5V
Dimming Control Type
I2C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM3554TMETR
LM3554 TIMING DIAGRAMS
30042037
FIGURE 3. Normal Torch to Flash Operation (Default, Power On or RESET state of LM3554)
30042038
FIGURE 4. TX1 Event During a Flash Event (Default State,TX1/TORCH is an Active High TX Input)
30042039
FIGURE 5. TX1 Event Before and After Flash Event (Default State, TX1/TORCH is an Active High TX Input)
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