Datasheet

AD8143
Rev. 0 | Page 10 of 24
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
REF_G
GND
IN+_G
FB_G
REF_R
IN–_G
GND
FB_R
OUT_B
GND
OUT_R
OUT_G
COMPB_IN+
V
S+
GND
COMPB_IN–
IN–_B GND FB_B IN+_B DIS/PD REF_B GND V
S–
IN+_R
GND
COMPA_IN+
IN–_R
COMPA_OUT
COMPA_IN–
GND
COMPB_OUT
AD8143
TOP VIEW
(Not to Scale)
A
B
05538-050
32 31 30 29 28 27 26 25
9 10111213141516
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
Figure 3. 32-Lead LFCSP Pin Configuration
Note exposed pad on underside of device must be connected to ground.
Table 6. 32-Lead LFCSP Pin Function Descriptions
Pin No. Mnemonic Description
1, 8, 9,16, 17, 24, 25, 32 GND Signal Ground and Thermal Plane Connection (See the Applications Section)
2 REF_G Reference Input, Green Channel
3 FB_G Feedback Input, Green Channel
4 IN+_G Noninverting Input, Green Channel
5 IN−_G Inverting Input, Green Channel
6 REF_R Reference Input, Red Channel
7 FB_R Feedback Input, Red Channel
10 IN+_R Noninverting Input, Red Channel
11 IN−_R Inverting Input, Red Channel
12 COMPA_IN+ Positive Input, Comparator A
13 COMPA_IN− Negative Input, Comparator A
14 COMPA_OUT Output, Comparator A
15 COMPB_OUT Output, Comparator B
18 COMPB_IN− Negative Input, Comparator B
19 COMPB_IN+ Positive Input, Comparator B
20 V
S+
Positive Power Supply
21 OUT_R Output, Red Channel
22 OUT_G Output, Green Channel
23 OUT_B Output, Blue Channel
26 V
S−
Negative Power Supply
27
DIS/PD
Disable/Power Down
28 REF_B Reference Input, Blue Channel
29 FB_B Feedback Input, Blue Channel
30 IN+_B Noninverting Input, Blue Channel
31 IN−_B Inverting Input, Blue Channel
Exposed Underside Pad GND Signal Ground and Thermal Plane Connection (See the Applications Section)