Description

The Double BTS7960 43A H-Bridge High-Power Stepper Motor Driver Module is; a fully integrated high current H bridge for motor drive applications using the BTS7960 high current half bridge. the BTS7960 is part of the NovalithICTM family. This containing one p-channel high side MOSFET and one n-channel low side MOSFET; with an integrated driver IC in one package. Due to the p-channel high side switch; the need for a charge pump is eliminated thus minimizing EMI.

Interfacing to a microcontroller is made easy by the integrated driver IC which features logic level inputs; diagnosis with current sense, slew rate adjustment; dead time generation and protection against overtemperature, overvoltage, under voltage; overcurrent, and short circuit.
The Double BTS7960 43A H-Bridge High-Power Stepper Motor Driver Module provides; a cost-optimized solution for protected high current PWM motor drives with very low board space consumption.

Features :

1. PWM capability of up to 25 kHz combined with active freewheeling.
2. Switched mode current limitation for reduced power dissipation in overcurrent.
3. Status flag diagnosis with current sense capability.
4. Overtemperature shut down with latch behavior.
5. Overvoltage lockout.
6. Undervoltage shut down.
7. Driver circuit with logic level inputs.
8. Adjustable slew rates for optimized EMI.
9. 74AHC244 Schmitt-trigger Octal buffer/line driver for ESD protection (Inputs accepts voltages higher than VCC).

Input port:

1. RPWM: forward level or PWM signal input, active high.
2. LPWM: Reverse level or PWM signal input, active high.
3. R_EN: forward drive enable input, high-level enable, low level off.
4. L_EN: Reverse drive enable input, high-level enable, low level off.
5. R_IS: forward drive current alarm output.
6. L_IS: Reverse drive current alarm output.
7. VCC: +5 V power output, 5V power supply connection with the microcontroller.
8. GND: signal common low end.