– 40 –
HT-CN400DVH/HT-CN400DVE/HT-CN500DVH/HT-CN500DVE
Figure 40 BLOCK DIAGRAM OF IC
FWD
Thermal Shutdown
Signal System GND
S-GND
VCONT
MUTE
VIN4
VIN4-
VIN4+
VREF-IN
VIN1(VREF)-SW
VREF-OUT(CH1)
RF
REG-OUT
REG-IN
VIN3+
VIN3-
VIN3
VIN2+
VIN2-
VIN2
VIN1+B
36
35
34
33
32
31
30
29
28
RF
27
26
25
24
23
22
21
20
19
UNit
Resistance:
Ω
MUTE
22k
VIN1/VREF-SW
Power System GND
5VREG (Extemal PNP)
22 k
11 k
22 k
11 k
22 k
11 k
11k
BTL-AMP Output
ON/OFF
(LOAD output voltage setting)
Input
Output Control
Level Shift
Level Shift
Level Shift
Level Shift
REV
VCC2
VLO-
VLO+
VO4+
VO4-
VO3+
VO3-
Power System GND
VO2+
VO2-
VO1+
VO1-
VCC1
AMP-A
AMP-B
VIN1
VIN1-A
VIN1+A
VIN1-B
RF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
FR
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
VIN1 (VREF)-SW
[L]: Internal VREF (2.5 V fixed)
[H]: Internal VREF
VIN1 (VREF)-SW
[L]: AMP-A
[H]: AMP-B
IC801 92LRCI6560-001: Motor Driver (LA6560)