43A High Power BTS7960 DC Motor Driver Module

Description

The BTS7960 DC Motor Driver Module is a fully integrated high current H bridge module for motor drive applications. The operating voltage of 24Vdc and peak current of 43A, it has PWM capability of up to 25 kHz combined with active freewheeling.

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, undervoltage, overcurrent and short circuit.

The BTS7960 provides a cost optimized solution for protected high current PWM motor drives with very low board space consumption.

Features
• Path resistance of typ. 16 mΩ @ 25 °C
• Low quiescent current of typ. 7 µA @ 25 °C
• PWM capability of up to 25 kHz combined with active freewheeling
• Switched mode current limitation for reduced power dissipation in overcurrent
• Current limitation level of 43 A typ.
• Status flag diagnosis with current sense capability
• Overtemperature shut down with latch behavior
• Overvoltage lock out
• Undervoltage shut down
• Driver circuit with logic level inputs
• Adjustable slew rates for optimized EMI

Pinout

Microcontroller pins :

• VCC: Module power supply – 5V
• GND: Ground
• IS-R: Input signal for detecting high current – Straight rotation
• IS-L: Input signal for detecting high current – Inverse rotation
• EN-R: Output Signal for controlling motor direction – Straight rotation
• EN-L: Output Signal for controlling motor direction – Inverse rotation
• WM-R: PWM Signal for controlling motor speed – Straight rotation
• PWM-L: PWM Signal for controlling motor speed – Inverse rotation

Motor pins :

• M+: Motor Positive
• M-: Motor negative
• B+: Battery positive
• B-: Battery negative