Support » Pololu Dual TB9051FTG Motor Driver Shield User’s Guide » 1. Overview »
1.a. Features
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Dual TB9051FTG Motor Driver Shield on an Arduino Uno (with a regulator added to power the Arduino from the shield’s VIN). |
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Dual TB9051FTG Motor Driver Shield for Arduino being controlled by an A-Star 32U4 Prime SV. |
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- Dual-channel H-bridge motor driver in the form factor of an Arduino shield
- Wide operating voltage range: 4.5 V to 28 V
- Output current: up to 2.6 A continuous (5 A peak) per motor
- Automatic current chopping feature helps prevent overheating by gracefully reducing power rather than abruptly shutting down
- PWM operation up to 20 kHz, which is ultrasonic and allows for quieter motor operation
- Current sense voltage output proportional to motor current (approx. 500 mV/A; only active while H-bridge is driving)
- Motor indicator LEDs show what the outputs are doing even when no motor is connected
- Can be used with an Arduino or Arduino-compatible board (through the stackable shield headers) or with other microcontroller boards (through the 0.1″ header along the left side)
- When used as a shield, the motor power supply can optionally be used to power the Arduino base as well, either directly or through an added regulator like the D24V5F9 or S10V3F9
- Arduino pin mappings can be customized if the default mappings are not convenient
- Arduino library makes it easy to get started using this board as a motor driver shield
- Secondary access points for most Arduino pins, all on the same 0.1″ grid
- Exposed solderable ground pad below each driver IC on the bottom of the PCB
- Reverse-voltage protection on motor supply
- Robust drivers:
- Transient operation (< 500 ms) up to 40 V
- Under-voltage lockout and protection against over-current/short-circuit and over-temperature
- Active-low error outputs indicate over-current, over-temperature, under-voltage, or VCC over-voltage conditions for each driver
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