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AAT3603 Datasheet(PDF) 30 Page - Advanced Analogic Technologies

Part # AAT3603
Description  Total Power Solution for Portable Applications
PDF  35 Pages
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Manufacturer  ANALOGICTECH [Advanced Analogic Technologies]
Direct Link  http://www.analogictech.com
Logo ANALOGICTECH - Advanced Analogic Technologies

AAT3603 Datasheet(HTML) 30 Page - Advanced Analogic Technologies

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AAT3603178
Total Power Solution for Portable Applications
PRODUCT DATASHEET
30
3603.2008.06.1.0
www .analogictech.com
Transferring Data
Every byte on the bus must be 8 bits long. A byte is
always sent with a most significant bit first (see Figure
8).
R/W
MSB
LSB
Figure 8: Bit Order.
The address is embedded in the first seven bits of the
byte. The eighth bit is reserved for the direction of the
information flow for the next byte of information. For
the AAT3603, this bit must be set to “0”. The full 8-bit
address including the R/W bit is 0x98 (hex) or
10011000 in binary.
Acknowledge Bit
The acknowledge bit is the ninth bit of data. It is used
to send back a confirmation to the master that the
data has been received properly. For acknowledge to
take place, the MASTER must first release the SDA
line, then the SLAVE will pull the data line low as
shown in Figure 7.
Serial Programming Code
After sending the chip address, the master should send
an 8-bit data stream to select which register to program
and then the codes that the user wishes to enter.
Register 0x00:
Timer
RCHG1
RCHG0
CHG2
CHG1
CHG0
Term1
Term0
Register 0x01:
Not used
Not used
Not used
Not used
Not used
SYS
LDO11
LDO10
Register 0x02:
LDO51
LDO50
LDO41
LDO40
LDO31
LDO30
LDO21
LDO20
Figure 9: Serial Programming Register Codes.
CHG2
CHG1
CHG0
Constant Current Charge
ICH_CC
Constant Current Charge
as % of ISET Current
00
0
100mA
(fixed internally)
(default)
0
0
1
640mA
80%
0
1
0
480mA
60%
0
1
1
320mA
40%
1
0
0
960mA
120%
1
0
1
1120mA
140%
1
1
0
1280mA
160%
1
1
1
1440mA
180%
Table 3: CHG Bit Setting for the Constant Current Charge Level
(assuming ISET resistor is set to default 800mA charge current).



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