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BD6088GUL
Address 06h < Main Current slope time setting >
Technical Note
Address
06h
Initial
Value
R/W
W
C7h
Bit7
THL(3)
1
Bit6
THL(2)
1
Bit5
THL(1)
0
Bit4
THL(0)
0
Bit3
TLH(3)
0
Bit2
TLH(2)
1
Bit1
TLH(1)
1
Bit0
TLH(0)
1
Bit [7:4] : THL (3:0)
Main LED current Down transition per 0.2mA step
“0000” : 0.256 ms
“0001” : 0.512 ms
“0010” : 1.024 ms
“0011” : 2.048 ms
“0100” : 4.096 ms
“0101” : 8.192 ms
“0110” : 16.38 ms
“0111” : 32.77 ms
“1000” : 65.54 ms
“1001” : 131.1 ms
“1010” : 196.6 ms
“1011” : 262.1 ms
“1100” : 327.7 ms (Initial value)
“1101” : 393.2 ms
“1110” : 458.8 ms
“1111” : 524.3 ms
Setting time is counted based on the switching frequency of Charge Pump.
The above value becomes the value of the Typ (1MHz) time.
Refer to “(9) Slope Process” of “The explanation of ALC” for detail.
Bit [3:0] : TLH (3:0) Main LED current Up transition per 0.2mA step
“0000” : 0.256 ms
“0001” : 0.512 ms
“0010” : 1.024 ms
“0011” : 2.048 ms
“0100” : 4.096 ms
“0101” : 8.192 ms
“0110” : 16.38 ms
“0111” : 32.77 ms (Initial value)
“1000” : 65.54 ms
“1001” : 131.1 ms
“1010” : 196.6 ms
“1011” : 262.1 ms
“1100” : 327.7 ms
“1101” : 393.2 ms
“1110” : 458.8 ms
“1111” : 524.3 ms
Setting time is counted based on the switching frequency of Charge Pump.
The above value becomes the value of the Typ (1MHz) time.
Refer to “(9) Slope Process” of “The explanation of ALC” for detail.
www.rohm.com
? 2011 ROHM Co., Ltd. All rights reserved.
20/51
2011.04 - Rev.A
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