HA13605A Datasheet, PDF (4/18 Pages) Hitachi Semiconductor – Three-Phase Brushless Motor Driver

HA13605A
Block Diagram
5V
R101
C104
R107
1
C109
7
3
H
L
C110
8
HU
C101
Reference
voltage
+
–
10
+
C102
HV
–
12
+
–
HW
C103
R102
5.6 V
200 kΩ (typ.)
5V
17
R105
Control
logic
DIR
CE
C105
LVI OTSD OVSD
D4
R106
15
R103
16
V_REF
23 kΩ
+
14
–
20 kΩ
C106 R104
23 kΩ
1/24 fc
C107
X’tal
C108
22 OSC
IN
R108
20
OUT
Divider D
Booster
U_H
U_L
Phase
switching
logic
V_H
V_L
Pre-
driver
W_H
W_L
Current
limiter
Filter
PWM
OSC
D1
2
U
D2
4
V
D3
6
W
R_NF
5
11
V_X1
18
Ct
FG detector
Noise
filter
Discriminator
2048
Speed
monitor
21 ^READY
(open
collector)
Charge
pump
13
C2
C1
R2
Clamping
circuit
19
D switching
L: 1/3
M:1/12
H: 1/6
23 TAB
9
R1
V_CC
(≈ 5 V)
4