FAN8200 Dual H-Bridge IC

The FAN8200 is a monolithic integrated 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 independent 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 Data sheet for the FAN8200.

NOTE: Fairchild has discontinued the FAN8200 chip. The chips we stock may not be manufactured by Fairchild but are identical 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 (V_CC = 2.5V-7.0V)

Truth Table

CE1	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.