AAT2845 Datasheet, PDF (17/19 Pages) Advanced Analogic Technologies – Four-Channel Backlight Driver with Dual LDOs

AAT2845
Four-Channel Backlight Driver with Dual LDOs
VIN
R1 R2 R3
1K 1K 1K
DATA
LIGHT
ENLDO
SW1
SW2
SW3
DC-
J2
R6
220
321
R7
100K
EN/SET
VIN
U2
1
2
3
VDD
GP5
GP4
4 _GP3
VSS
GP0
GP1
8
7
6
GP2 ⁵
PIC12F675
C8 R5
1µF 330
LED7
RED
J3
321
R4
100K
ENL
Figure 6: MCU Section Schematic.
Evaluation Board Component Listing
Component
U1
U2
D1 - D4
C1 - C3
C4 - C6
C7
C8
C9
R1 - R3
R4, R7
R5
R6
R8
R9, R11
R10
J1 - J3
LED7
SW1 - SW3
Part#
AAT2845IML-EE-T1
PIC12F675
LW M673
GRM18x
GRM18x
GRM18x
GRM31x
TAJBx
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
Chip Resistor
PRPN401PAEN
CMD15-21SRC/TR8
PTS645TL50
Description
Four-Channel Backlight Driver with Dual LDOs
8-bit CMOS, FLASH MCU; 8-pin PDIP
Mini TOPLED White LED; SMT
1.0µF, 10V, X5R, 0603, ceramic
2.2µF, 10V, X5R, 0603, ceramic
0.1µF, 16V, X7R, 0603, ceramic
1µF, 10V, X5R, 1206, ceramic
100µF, 10V, 10µA, tantalum
1K, 5%, 1/4W; 1206
100K, 5%, 1/4W; 1206
330, 5%, 1/4W; 1206
220, 5%, 1/4W; 1206
60.4K, 1%, 1/10W; 0603
120K, 1%, 1/10W; 0603
160K, 1%, 1/10W; 0603
Conn. Header, 2mm zip
Red LED; 1206
Switch Tact, SPST, 5mm
Manufacturer
AnalogicTech
Microchip
OSRAM
Murata
Murata
Murata
Murata
AVX
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Sullins Electronics
Chicago Miniature Lamp
ITT Industries
2845.2006.12.1.0
17