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MBI5028 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

Part No. MBI5028
Description  16 BIT CONSTANT CURRENT LED SINK DRIVER WITH GAIN CONTROL
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Maker  ETC [List of Unclassifed Manufacturers]
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MBI5028 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers

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MBI5028
16-bit Constant Current LED Sink Driver with Gain Control
April 2003, V0.8-4
- 6 -
Entering Current Adjust Mode
The signal sequence makes MBI5028 enter a Current Adjust mode.
Writing Configuration Code
Note:
Pin OE (CA2) always enables the output port no matter MBI5028 enters a Current Adjust mode or not.
When entering the Current Adjust mode, by sending the positive pulse of LE(CA1), the content of the
Shift Register, a Current Adjust code, will be written to the 16-Bit Configuration Latch.
Resuming to Normal Mode
The signal sequence makes MBI5028 resume to a Normal mode.
Note:
If users want to know the whole process, that is how to enter a Current Adjust mode, write Current
Adjust codes and resume to a Normal mode, please refer to the contents in Application Information.
N = 0
1
2
3
4
5
12
13
14
15
Bit15 Bit14 Bit13 Bit12 Bit11
Bit3
Bit2
Bit1
Bit0
CLK
LE(CA1)
SDI
Bit10
16-Bit Configuration Code
LE(CA1)
CLK
1
2
3
4
5
1
0
1
1 1
0
0
0
1 0
(CA2)
OE
1
2
3
4
5
CLK
LE(CA1)
1
0
1
1
1
0
0
0
0
0
(CA2)
OE
Voltage “Low”


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