AAT2833 Datasheet, PDF (18/20 Pages) Advanced Analogic Technologies – 240mA Total Display Solution for Portable Devices

AAT2833/34
240mA Total Display Solution
for Portable Devices
Evaluation Board Schematic
VOUT
DC+
J1
Optional 100μF
lab supply bypass
VIN
C7
EN
D1 D2 D3 D4 D5 D6
R9 = 280K for
30mA/chnl backlight.
R9
280K
24 23 22 21 20 19
U1
AA T2833
1 _BL3
2 _BL2
3 _BL1
4 _AGND
5 _N/C
6 _EN/SET
N/C ¹⁸
N/C ¹⁷
PGND ¹⁶
C1- ¹⁵
C1+ ¹⁴
VIN ¹³
C1
1.0μF
7 8 9 10 11 12
C4
4.7μF
RGB
Optional footprints for
auxiliary lighting LEDs
.
R
G
B
C2
1.0μF
C3
2.2μF
Figure 8: AAT2833/34 Evaluation Board Schematic.
VIN
R1 R2 R3 R4 R5
1K 1K 1K 1K 1K
SW1
SW2
SW3
SW4
SW5
R7
EN
220
J2
R8
100K
VIN
U2
1
2
3
4
VDD
GP5
GP4
GP3
VSS
GP0
GP1
GP2
8
7
6
5
PIC12F675
C6 _R6
1μF ₃₃₀
LED7
RED
Figure 9: AAT2833/34 Microcontroller Section Schematic.
18
2833.2007.09.1.0