Internal Block Diagram
LA6565VR
FWD 1
REV 2
Power system
power supply
VCCP2 3
(NC) 4
VLO- 5
VLO+ 6
Thermal shutdown
Signal system ground
44 SGND
(LOAD output voltage setting)
43 VCON
MUTE
CH1
Turns ON/OFF the corresponding CH.
H; Output ON, L; Output OFF
CH2,3,4
42 MUTE1
41 MUTE234
44kΩ
--
+
11kΩ
--
40
+
To VREFOUT 39
VIN4-
(NC)
VO4+ 7
VO4- 8
VO3+ 9
VO3- 10
Power system ground
PGND2 11
--
PGND1 12
+
VO2+ 13
VO2- 14
VO1- 15
VO1+ 16
(NC) 17
VCCP1
VCCS
18
Power system
power supply
19
Signal system ground
VIN1+ 20
+
--
VIN1- 21
11kΩ
44kΩ
--
+
VIN1 22
38 VIN4
--
+
37 VREF_IN
36 VREF_OUT
35 REG_OUT
Error lamp for regulator +
--
+
--
34 (NC)
33 REG_IN
32 VIN+OP
31 VIN-OP
30 VO_OP
29 VIN3
44kΩ
11kΩ
--
--
+
+
28 VIN3-
To VREFOUT 27 (NC)
44kΩ
--
+
11kΩ
26 VIN2
25 VIN2-
--
+
24 VIN2+
23 (NC)
No.A0816-7/9