Description This H-Bridge module is based on Dual BTN7960B / BTS7960B Half Bridge Driver chips. The module is designed for high power DC Motor and Solenoids drives. Interfacing this high current driver with Arduino, PIC and AVR is extremely easy. This driver module lets you control one DC motor with current as high as 43A. Maximum operating frequency is up to 25kHZ. Features Dual BTN7960B / BTS7960 chip structure (max current 43A) 74HC244 buffer driver for better isolation. 5-wire connection from MCU to the module: GND, 5V, IN1, IN2, EN Operating Voltage: DC 8~24V Input max 25kHz frequency Size: 46mm (L) x 46 mm (W) Total Max Height : 38mm (including heatsink, capacitor and connector heights) Features Driver: Dual BTN 7960 / BTS7960 which forms Half bridge to drive DC motor. Each chip contains one P-channel and one N-channel MOSFET with single driver IC. PWM based interface with current sensing capability. Under voltage shutdown, Over voltage lockout, Over temperature shutdown and overcurrent protection. Can interface directly with 3.3 V and 5 V systems Built-in 74HC244 8bit line driver chip to effectively isolate the microcontroller and the motor driver. Slew rate adjustment. Duty cycle 0-100 % Technical Specifications Driver Chip: BTN7960B / BTS7960B Operating Voltage range: 5.5v to 28 V Maximum Load Current: 43 A Combined Path Resistance for High and Low sides: 16mOhm (Typ) and 30.3mOhm (worst at 150C) Motor Type: DC motor Card size: 4*5*1.2cm [!] Note To reach the high current, junction temperature must remain low. The BTN7960 module has small heat sink which is not enough to reach 10A to 43A range on a consistent manner. If you need continuos high current capability, better cooling technique (e.g. air flow, water cooling, etc) should be employed. Pinouts Control Side RPWM: Right Side Hi / Lo side Driver Enable (0=low side on, high side off; 1= high side on, low side off) LPWM: Left Side Hi / Lo side Driver Enable (0=low side on, high side off; 1= high side on, low side off) R_EN: Right Side Enable / PWM L_EN: Left Side Enable / PWM R_IS: Right side Current Sense L_IS: Left side Current Sense VCC: Logic VCC 3.0V/3.3V/5.0V Nominal (Can be 2.5V to 5.3V) GND: 0V Logic Power Supply Power Side M-: Motor /Solenoid Negative Terminal M : Motor /Solenoid Positive Terminal B : Battery Positive / High Current (Nominal: 8V – 18V, Extended: 5.5V – 28V) B-: Battery Negative / High Current ( 0V) How to use Truth Table R_EN L_EN RPWM LPWM MOTOR STATUS EBABLE DIR DIR 0 X X OFF/STANDBY 1 0 0 Low Side Breaking 1 0 1 CW Rotation 1 1 0 CCW Rotation 1 1 1 High Side Breaking Logic Values Explanation 1 = Logic High (3v to 5.0V) 0 = Logic Low (0v) x = Dont care (can be any value) Connection Scheme Connect RPWM with motor controller’s CW output pin Connect LPWM with motor controller’s CCW output pin Connect both R_EN and L_EN pins with motor controller’s PWM output Connect Motor Controller GND with GND pin on P3 Header Connect Motor Controller VCC (3.0V/3.3V/5.0V) with VCC pin on P3 Header Supply 8V to 18V on B pin on P1 header Connect Motor between M and M- on P2 header Supply 0V on B- pin on P1 header Applications Motor control for E-bikes, Segway 2Wheel drive / 4-Wheel drive robots requiring high torque High Torque Robotic Arms High Current Solenoids Inductive or Resistive Loads where PWM control and Current Direction reversal is needed Documents and Downloads Device Datasheet for BTN7960B half bridge chip Art of Circuits L298N library can be safely used with BTN7960B module. [!] Make sure you define correct PWM pin according to Arduino of your choice BTN7960B Module Schematic drawn by Art of Circuits Package Includes 1pc 43A BTN7960B / BTS7960B H-Bridge Module (Tested / QC-OK by Art of Circuits)
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