Full-Bridge DC Motor Driver IC: TB6568KQ/TB6569FG

The TB6568KQ andTB6569FG are DC motor drivers with MOS output transistors. The low-RDS(ON) LDMOS output transistors and the PWM drive method improve thermal efficiency.
The IN1 and IN2 input terminals allow selection of one of the four modes: Forward, Reverse, Short-Circuit Brake or Stop.
Housed in the HSIP7 package, the TB6568KQ is pin-compatible with the TA8428K.
The TB6569FG is offered in the HSOP16 package, a thermally enhanced surface-mount package. The TB6569FG provides an abnormal condition output, constant-current PWM control and an externally programmable overcurrent protection.

The photo of TB6568KQ/TB6569FG.

Features

(TB6568KQ/TB6569FG)

Overcurrent protection circuitry
Overvoltage protection circuitry
Undervoltage lockout circuitry
Thermal shutdown circuitry
Cross conduction protection
Low Ron: 0.55 Ω typ. (high side + low side)
PWM control
Operating voltage range: 10 to 45 V

(TB6568KQ)

HSIP7 package
Pin-compatible with TA8428K
Rated absolute maximum output current: 3 A

(TB6569FG)

HSOP16 package
Abnormal condition output
Constant-current PWM control
Overcurrent protection control circuitry
Rated absolute maximum output current: 4.0A / 4.5 A

Circuit Diagram

The illustration of Circuit Diagram. (TB6568KQ)

The illustration of Circuit Diagram. (TB6569FG)