LM3553SDEV National Semiconductor, LM3553SDEV Datasheet - Page 8

• Manufacturer Part Number: LM3553SDEV
• Description: BOARD EVALUATION FOR LM3553S
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3553SDEV

• Current - Output / Channel: 1.2A
• Outputs And Type: 1, Non-Isolated
• Features: Camera Flash and Torch Modes, I²C Interface, Programmable Output Current
• Voltage - Input: 2.7 ~ 5.5V
• Utilized Ic / Part: LM3553
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -

www.national.com
Software Interface Information
In order to fully evaluate the LM3553 part, an “I
interface must be used for any functionality to occur. A de-
tailed description of the interface control is described in the
LM3553 datasheet.
National has created an I
program and USB docking board that can help exercise the
part in a simple way. Contained in this document is a descrip-
tion of how to use the USB docking board and interface
software.
At the top of the interface, the user can read or write to any of
the data registers on the LM3553 part using the two pull down
menus (for the slave i.d. and the desired data address), the
data field, and the read and write buttons.
Generic Read/Write Field
2
C compatible interface generation
2
C Compatible”
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GUI Start-Up
8
The LM3553 evaluation board has the means to “plug into”
the USB docking board. The USB docking board provides all
of the control signals for the simple interface. Power to the
part must be provided externally. A standard USB cable must
be connected to the board from a PC.
The I
trol that the LM3553 part requires. For proper operation, the
USB docking board should be plugged into the PC before the
interface program is opened. Once connected, and the pro-
gram is executed, a basic interface window will open.
Just below the pull down menus are convenient toggle but-
tons to set/reset the control bits in the Control Registers.
2
C compatible interface program provides all of the con-
Drop Down Menu
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