(No.49868)1-33
6.6
LA6579H-X (IC561) : 4-Channel bridge driver
• Pin layout & Block diagram
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
14
FR
FR
VIN1
VIN1-B
VIN1+B
S-GND
VIN1-SW
MUTE
VREFIN
VCCS
3.3VREG
REGIN
VIN2G
VIN2
VIN3G
VIN3
FR
VIN1-A
VIN1+A
VCCP1
VO+
VO-
VO2+
VO2-
VO3+
VO3-
VO4+
VIN4G
FR
+
-
+
-
+
-
[H]
[L]
VIN1_SW
[H]: OP-AMP_A
[L]: OP-AMP_B
33k
11k
Signal system
power supply
All outputs ON/OFF
H : ON
L : OFF
MUTE
Level shift
Level shift
Power system GND
Signal system
power supply
3.3VREG
(External:PTP Tr)
+
-
Power system
GND
Level shift
Level shift
+
-
33k
11k
+
-
+
-
+
-
11k
33k
33k
11k
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299