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TDA7272A 데이터시트(PDF) 11 Page - STMicroelectronics

부품명 TDA7272A
상세설명  HIGH PERFORMANCE MOTOR SPEED REGULATOR
PDF  16 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7272A 데이터시트(HTML) 11 Page - STMicroelectronics

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- fast forward, by putting a resistor. In this
case it is necessary that also at the higher
speed for the duty cycle to be significately
less than 1 (see value of RT,CT on pin 2,
pin 3 sections).
Fig. 19 shows the function controlled with a
µP.
Pin 18
Right function control. The voltages applied to this
pin and to pin 19 determine the function, as
showed in the table.
The typical value of the threshold (L-H) is 1.2 V.
Pin 19
Left function control. (see pin 18 sect).
Pin 20
Right speed adjustment. (see pin 17 sect).
Figure 18.
Figure 19.
CONDITION
OUTPUT FUNCTION
OUTPUT VOLT AGE
Pin 18
Pin 19
Pin 12
Pin 9
L
H
L
H
L
L
H
H
STOP
LEFT
RIGHT
OPEN
LOW
LOW
REG
HIGH IMP.
LOW
REG
LOW
HIGH IMP.
Figure 20: Typical application.
TDA7272A
11/16



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