參數(shù)資料
型號： TPIC2101D
廠商： TEXAS INSTRUMENTS INC
元件分類： 運(yùn)動控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, 0.05 A, PDSO14
封裝： SOIC-14
文件頁數(shù)： 19/21頁
文件大?。?/td> 381K
代理商： TPIC2101D
TPIC2101
DC BRUSH MOTOR CONTROLLER
SLIS060 – OCTOBER 1995
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
manual mode speed signal decoding (continued)
2
3
499
499
I = 100
A
VIO
20 k
min
27.4 k
14 2.75 V
4
7
4.7
F
MAN
AUTO
CCS
SPEED
INT
TPIC2101
Vbat
Enable
Switch
1 k
pot
Battery
47
Figure 4. Manual Mode Connections
As in the automatic mode, the device will adjust the GD terminal PWM duty cycle to keep the effective motor
voltage constant with changing battery voltages (Vbat). The transfer equation for the manual mode is:
PWMout +
(2.88
) 6.56(V
MAN *
V
AUTO
))
V
bat
100%
Figure 5 shows the output characteristic for various source voltages.
50
40
20
10
0
90
30
0
0.2
0.4
0.6
0.8
1
1.2
–
Manual
Mode
Output
PWM
–
%
70
60
80
100
1.4
1.6
1.8
2
Vbat = 8
Vbat = 12
Vbat = 16
PWM
out
VMAN - VAUTO – Differential Voltage – V
Figure 5. Manual Mode Input Signal vs. Output PWM
The allowable manual mode PWMout variation is ±7% over all operating conditions as indicated in the AC
characteristics table.
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