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504

Motor driver ICs

2-channel reversible motor driver

BA6259N

The BA6259N incorporates two reversible-motor drivers.

Features

1) Two reversible-motor driver circuits are built in.

2) Built-in thermal shutdown circuit.

3) SIP10pin package.

Block diagram

Absolute maximum ratings (Ta = 25C)

Summary of content (5 pages)

PAGE 1
Motor driver ICs 2-channel reversible motor driver BA6259N The BA6259N incorporates two reversible-motor drivers. Features 1) Two reversible-motor driver circuits are built in. 2) Built-in thermal shutdown circuit. Block diagram Absolute maximum ratings (Ta = 25 C) 504 3) SIP10pin package.
PAGE 2
Motor driver ICs BA6259N Electrical characteristics (unless otherwise noted, Ta = 25 C and VCC = 12V) Input / output truth table Application example C2, C3 : Capacitors for preventing parasitic oscillation. Though the optimum capacitance depends on such PCB arrangement factors as the power supply circuit, motor characteristics, and conductor foil patterns, a range of 0.01 1µF is recommended. C4, C5 : Capacitors for preventing parasitic oscillation.
PAGE 3
Motor driver ICs BA6259N Control pin equivalent circuit Oparation notes (1) Use the BA6259N with VR (pin 8) short-circuited to VCC2 (pin 9). The VCC2 potential should be lower than the VCC1 potential. Under these conditions, the IC provides a HIGH level output voltage of 11.3V (typical, VCC2=12V). Because a single transistor is used for the low-side output stage, the LOW level output voltage is further lowered. This results in a wide range of motor drive voltage.
PAGE 4
Motor driver ICs BA6259N (9) Large current line Large currents are carried by the motor power supply and motor ground for these ICs. Therefore, the layout of the pattern of the PC board and the constants of certain parameters for external components, such as the capacitor between the power supply and ground, may cause this large output current to flow back to the input pins, resulting in output oscillation or other malfunctions.
PAGE 5
Motor driver ICs Electrical characteristic curves External dimensions (Units: mm) 508 BA6259N