BA6402F ROHM Electronics, BA6402F Datasheet
BA6402F
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BA6402F Summary of contents
Page 1
... Motor driver ICs 2-phase half-wave motor predriver BA6402F The BA6402F is a 2-phase, half-wave motor predriver suitable for fan motors. FFeatures 1) Lock detection and rotational speed sensing mecha- nisms are built in. 2) Hall constant current source is built in. FBlock diagram and application example ...
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... Hall constant current source (3 pin, 6.8mA typical- ly), which is directly connected with the IC bias circuit, is not available when pin 3 is OPEN (saturated). (2) Power dissipation The allowable power dissipation is plotted against ambi- ent temperature in Fig. 3. 690 = 12V) CC be- 6 =6.8 A, typical FThermal derating curve BA6402F ...
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... Restarting when motor is locked The outputs are turned OFF if the motor is stopped for some reason. To restart the motor from this situation, turn off the power first, fully discharge the pin 6 capacitor next, and then turn on the power again. BA6402F -rank of the FE val- O ...