LP3943ISQ National Semiconductor, LP3943ISQ Datasheet - Page 7

• Manufacturer Part Number: LP3943ISQ
• Description: LED Driver IC
• Manufacturer: National Semiconductor

Specifications of LP3943ISQ

• Driver Case Style: LLP
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• No. Of Pins: 24
• Package / Case: 24-LLP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Application Notes
(Continued)
20079608
FIGURE 3. Chip Address Byte
20079609
w = write (SDA = “0”)
r = read (SDA = “1”)
ack = acknowledge (SDA pulled LOW by either master or slave)
rs = repeated start
xx = 60 to 67
FIGURE 4. LP3943 Register Write
However, if a READ function is to be accomplished, a
WRITE function must precede the READ function, as shown
in Figure 5.
20079610
w = write (SDA = “0”)
r = read (SDA = “1”)
ack = acknowledge (SDA pulled LOW by either master or slave)
rs = repeated start
xx = 60 to 67
FIGURE 5. LP3943 Register Read
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