L292
APPLICATION INFORMATION
This section has been added in order to help the designer for the best choise of the values of external
components.
Figure 5. L292 Block Diagram.
The schematic diagram used for the Laplace analysis of the system is shown in fig. 6.
Figure 6.
RS1 = RS2 = RS (sensing resistors)
1 = 2.5 • 10-3 Ω (current sensing amplifier transconductance)
R4
LM = Motor inductance, RM = Motor resistance, IM = Motor current
Gmo = IM | s = 0 (DC transfer function from the input of the comparator (VTH) to the motor
current (IM)).
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