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L272 Datasheet(PDF) 6 Page - STMicroelectronics

No. de pieza L272
Descripción Electrónicos  DUAL POWER OPERATIONAL AMPLIFIERS
PDF  10 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L272 Datasheet(HTML) 6 Page - STMicroelectronics

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Figure 12 : Motor Current Control Circuit.
Note : The input voltage level is compatible with L291 (5-BIT D/A converter).
Figure 13 : Bidirectional Speed Control of DC Motors.
2R3
° R1
For circuit stability ensure that RX >where RM = internal resistance of motor.
RM
Vs
2R
° R1
The voltage available at the terminals of the motor is VM = 2 (Vi
⋅
) +
Ro ⋅ ΙM where Ro =
2RX
and IM is the motor current.
L272
6/10



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