BA6247 Datasheet | ROHM

Motor driver ICs Reversible motor driver BA6246N / BA6247 / BA6247N / BA6247FP-Y The BA6246N, BA6247, BA6247N and BA6247FP-Y are monolithic ICs incorporating two reversible-motor drivers. The ICs differ in the control logic and output mode. FFeatures 1) Two reversible-motor drivers in each unit. 2) Built-in thermal shutdown circuit. 3) Output voltage can be set arbitrarily. 4) Available in a pact SIP10pin package (BA6246N, BA6247N) or a HSIP10pin package with radiation fins (BA6247). 5) Available in a HSOP25pin surface-mount package (BA6247FP-Y). FBlock diagram Motor driver ICs FControl pin equivalent circuits BA6246N / BA6247 / BA6247N / BA6247FP-Y FInput / output truth table FAbsolute maximum ratings (Ta = 25_C) Motor driver ICs BA6246N / BA6247 / BA6247N / BA6247FP-Y FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 12V) FApplication examples Motor driver ICs BA6246N / BA6247 / BA6247N / BA6247FP-Y FOperation notes (1) Input conditions (1) The input threshold voltage is positively correlated with temperature as expressed by : ∆VIH ∆T )2.8m V / _C ∆VIL )1.6m V / _C (Typ.) ∆T (2) The input pins of the BA6246N are pulled up through a resistance of about 15kΩ (see Fig. 1). To secure the LOW level input, the interface to these pins should have a current-sink capability of at least 700 µ A (5V / 15kΩ 2). (3) The maximum input voltage is 6V. Make sure that the input will not exceed this value. Also when the voltage VCC is not applied to the IC, do not apply voltages to the input pins. (2) Changes in motor direction When reversing the rotational direction of a motor, make sure to go through the brake or open mode in-between the opposite directions. The duration of brake mode should be more than the braking time, which is defined by the time required for the potential of the LOW level output pin to bee less than the ground potential by the electromotive force generated when the mode is switched from rotation to brake....