Double BTS7960B DC 43A H-bridge Stepper Motor Driver

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 contains 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 over-temperature, over-voltage, 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.

Specifications:

• Input voltage(V) : 6 – 27
• Maximum current(A) : 43
• Input level(V) : 3.3 – 5
• Duty cycle : 0 – 100%
• Path resistance : 16 mΩ at 25°C.
• Low quiescent current : 7 µA at 25°C
• Operating Frequency(kHz) : 25

Features:

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

Input Ports:

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