TPS61160_17 Datasheet, PDF (17/39 Pages) Texas Instruments – White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm WSON Package

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TPS61160, TPS61161
SLVS791E – NOVEMBER 2007 – REVISED JULY 2016
BYTE
Device
Address
Byte
72 hex
Data byte
BIT
NUMBER
7
6
5
4
3
2
1
0
7 (MSB)
6
5
4
3
2
1
0 (LSB)
NAME
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
RFA
A1
A0
D4
D3
D2
D1
D0
ACK
Table 2. EasyScale Bit Descriptions
TRANSMISSION
DIRECTION
IN
IN
OUT
DESCRIPTION
0 MSB device address
1
1
1
0
0
1
0 LSB device address
Request for acknowledge. If high, acknowledge is applied by device
0 Address bit 1
0 Address bit 0
Data bit 4
Data bit 3
Data bit 2
Data bit 1
Data bit 0
Acknowledge condition active 0, this condition will only be applied in case RFA bit is
set. Open drain output, Line needs to be pulled high by the host with a pullup
resistor. This feature can only be used if the master has an open drain output stage.
In case of a push pull output stage Acknowledge condition may not be requested!
DATA IN
Easy Scale Timing, without acknowledge RFA = 0
t _Start
Address Byte
t _Start
DATA Byte
Static High
Static High
DATA IN
DA7
0
DA0
0
T_EOS
RFA
0
D0
1 T_EOS
Easy Scale Timing, with acknowledge RFA = 1
t _Start
Address Byte
t
Start
DATA Byte
Static High
Static High
DATA OUT
DA7
0
DA0
0
RFA
D0
T_EOS
1
1
Controller needs to
Pullup Data Line via a
resistor to detect ACKN
t _valACK
ACKN
t _ACKN
Acknowledge
true, Data Line
pulled down by
device
Acknowledge
false, no pull
down
t_Low
t_High t_LOW
t_High
Low Bit
(Logic 0)
High Bit
(Logic 1)
Figure 15. EasyScale Bit Coding
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