Diodes AM4962 - Manual (Page 11)

Data Sheet
SINGLE PHASE FULL WAVE DIRECT PWM MOTOR DRIVER AM4962
Apr. 2011 Rev. 1. 2 BCD Semiconductor Manufacturing Limited
11
0 10 20 30 40 50 60 70 80 90 100
0
20
40
60
80
100
Max. Duty Cycle
O
u
tput
Dut
y
Cyc
le (
%
)
Input PWM Duty Cycle (%)
Min. Duty Cycle
Slope K
OUT2 OUT1
VCC GND
VMIN CT
PWM RADJ
CF HIN-
FG HB
RD HIN+
Hall
AM4962
D1
C1
1 μF
VCC
L1
C3
1 μF
C2
0.47 μF
1 (1)
PGND
V+
2 (3)
3 (4)
4 (5)
5 (6)
6 (7)
7 (8) 8 (9)
9 (10)
10 (11)
11 (12)
12 (13)
13 (14)
14 (15)
Typical Application (Note 4)
Figure 10
Application 1 (Default)
R1
R2
D3
OUT2 OUT1
VCC GND
VMIN CT
PWM RADJ
CF HIN-
FG HB
RD HIN+
Hall
AM4962
D1
C1
1 F
VCC
L1
C3
1 F
C2
0.47 F
1 (1)
PGND
R3
R4
V+
R5
R6
V+
2 (3)
3 (4)
4 (5)
5 (6)
6 (7)
7 (8) 8 (9)
9 (10)
10 (11)
11 (12)
12 (13)
13 (14)
14 (15)
D2
Application 2 (Slope K and Minimum/Maximum Duty Adjustable)
Note: D2 and D3 are recommended to be used when the current in coil L1 is higher than 300mA.
Figure 11. Typical Applications of AM4962