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AM4963 bảng dữ liệu(PDF) 13 Page - BCD Semiconductor Manufacturing Limited

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Data Sheet
Single Phase Full Wave Direct PWM Motor Driver
AM4963/AM4963R
Sep. 2011 Rev. 1. 0
BCD Semiconductor Manufacturing Limited
13
0
2040
6080
100
0
20
40
60
80
100
V
CC=12V
T
A=30
OC
T
A=38
OC
Input Duty Cycle (%)
56789
10
24
26
28
30
32
34
36
38
40
R
T=TSM2A103F39H1RZ
R8 (kΩ)
40
60
80
100
120
140
160
180
200
220
240
32
34
36
38
40
42
Input duty cycle=100%
T
L=30
0C
R9 (kΩ)
28
30
32
34
36
38
40
0
20
40
60
80
100
Input duty cycle=20%
Input duty cycle=50%
Input duty cycle=70%
Input duty cycle=100%
T
A (
OC)
T
H
T
L
Typical Application (Note 4, Continued)
Note 4: Some typical performance curves of applications based on circuits above (Figure 10, 11) are shown as
below (R1 to R6 open, R8=8k
Ω, R9=150kΩ).
Figure 12. Output Duty Cycle vs. Input Duty Cycle
Figure 13. Output Duty Cycle vs. TA
Figure 14. Low Corner Temperature vs. R8
Figure 15. High Corner Temperature vs. R9 (Note 5)
Note 5:
1) Low corner temperature (TL) is set by thermal resistor RT and R8; RT=R8 when at temperature TL.
2) High corner temperature (TH) can be expressed as: TH≈TL+5*R9/100k.
3) First, set TL, then TH.



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