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The FAN8200 is a monolithic intergrated circuit designed for dual DC motor control or two-phase stepping motor drive systems. It has dual H-bridge drivers with vertical-PNP power transistors. Each of the bridges has an independant enable pin, perfect for controlling 2 independent motors in low-voltage robotics applications. The FAN8200 supports the use of Pulse Width Modulation (PWM) in both sign-magnitude and locked anti-phase configurations. Click here for the Datasheet for the FAN8200. NOTE: Fairchild has discontinued the FAN8200 chip. The chips we stock are not manufactured by Fairchild but are indentical in function. Features - 3.3V and 5V MCU interface
- Dual H-bridge drivers for bipolar stepping motor drives
- Built-in vertical-PNP power transistors
- Low saturation voltage (0.4V @ 0.4A)
- Built-in chip enable function for each bridge
- Built-in shoot-through current protection
- Built-in thermal shutdown (TSD) function
- Wide supply voltage range (VCC = 2.5V-7.0V)
Truth TableCE1 | IN1 | OUT1 | OUT2 | Low | X | Z | Z | High | Low | High | Low | High | High | Low | High |
CE2 | IN2 | OUT3 | OUT4 | Low | X | Z | Z | High | Low | High | Low | High | High | Low | High |
X=Don't Care
Z=High Impedence To implement sign-magnitude PWM, the Enable pin is pulsed and IN1 determines direction. For locked anti-phase, IN1 is pulsed and Enable is used to enable/disable the motor. We have used PWM frequencies up to 20kHz. Microbot is a small line follower that uses the FAN8200 to control a pair of Solarbotics gear pager motors powered by a single Li-Poly battery. Microbot weighs a mere 1 ounce!
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