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Make sure V_SS is connected to the logic supply voltage (see AnT's comment).
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An H-bridge is a circuit that can drive a current in either polarity and be controlled by pulse width modulation. It can also be used to control the brightness of certain lighting projects such as high powered LED arrays.
L298n motor driver labels free#
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saturation voltage is related to output current and other parameters, e.g.this circuit is now operating at the fringes, one might call it shady at best, intolerable at worst.The actual restriction is that the motor supply be somewhat greater than the logic "1" input, but that need not match the logic supply. So driving the L298's logic inputs with a lower voltage for logic 1, i.e. And here's the trick that might make it work: as noted V_S (the supply voltage) needs to be at a level of V_IH + 2.546V while V_IH could be as low as 2.3V and 2.3V + 2.546V < 5V. Which would explain that the circuit works at 7.2V under the assumption that the logic inputs (enable A and B as well as inputs 1 through 4) are at close to 5V high levels. The L298N driver module, using STs L298N chip can directly drive two 3-30V DC motor, and provides a 5V output interface can 5V single-chip circuitry to supply, support 3.3VMCU control, you can easily control the DC motor speed and direction, you can also control the 2-phase stepper motor, smart car essential. V_IH, Input High Voltage, ranging from 2.3V to V_SS.V_SS, Logic Supply Voltage, pin 9, typical 5V (min.: 4.5V, max.: 7V).V_S, Supply Voltage, pin 4, Operative Condition V_IH + 2.546V (max.: 46V) Tags: I298n Motor Driver Module, L298, L298 Datasheet, L298 Motor Driver, L298n Datasheet, L298n Driver, L298n Motor Driver, L298n Motor Driver Arduino Continue Reading Previous Raspberry Pi 4 vs Pi 3 All the Major Differences.There are only two supply pins on the L298 with the following electrical characteristics: I will assume that the " 12V-35V input pin" is the V_S pin, despite that label. Note: Since all vendors (checked Mouser, Octopart, and Sparkfun) link to the L298 datasheet when listing the L298N I will assume they are reasonably equivalent.