AAT2833IBK-T1 AnalogicTech, AAT2833IBK-T1 Datasheet - Page 14

• Manufacturer Part Number: AAT2833IBK-T1
• Description: 240mA Total Display Solution for Portable Devices
• Manufacturer: AnalogicTech

RGB LED Current Calculation
The average current in a particular color channel is
a function of the values in the R, G, B, T, and I
registers, as follows:
14
Table 7: Address 12, RGB Current Level
Data
1
2
3
4
5
6
7
Green
Blue
Red
Register (I
RGB Current as % of BSET
SINK
I
SINK
R
100
133
167
200
33
66
).
0
Figure 3: RGB Diode Current Timing.
I
G
SINK
SINK
Shutdown
Since the channel backlight power returns are the
only power returns for all the LEDs, there is no
leakage current if all channels are disabled.
Applying a HIGH-to-LOW transition on the EN/SET
pin and holding LOW for at least T
activate the AAT2833/34's shutdown mode. Data
and Address registers are cleared (reset to 0) dur-
ing shutdown.
T
B
I
SINK
240mA Total Display Solution
I
I
I
R
G
for Portable Devices
B
= I
= I
= I
SINK
SINK
SINK
AAT2833/34
·
·
·
R
G
T
T
B
T
I
SINK
OFF
2833.2007.09.1.0
(500µs) will