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Sinewave PWM brushless motor control / Auto lead angle function. Brushless motor driver IC
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TC78B041FNG/TC78B042FTG
TOSHIBA CDMOS Integrated Circuit Silicon Monolithic TC78B041FNG/TC78B042FTG
Sine-wave PWM Drive
Three-phase Full Wave Brushless Motor Controller
TC78B041FNG and TC78B042FTG are developed for three-phase
brushless DC fan motors.
The TC78B041FNG adopts SSOP30 type package.
The TC78B042FTG adopts QFN32 type package, adding RESX
and VREF2 pins. Features
• Sine-wave PWM control • Automatic lead angle control (InPAC: Intelligent Phase
Control) • Lead angle control with external input • Hall sensor input/Hall IC input • Forward rotation/Reverse rotation switch • Number of pulses of rotation pulse signal output is selectable. • Output current can be limited. • Built-in regulator circuit (VREF= 5 V (typ.), 35 mA (max) • Operating supply voltage range: VCC = 6 V to 16.5 V • Built-in motor lock detection © 2017-2018
Toshiba Electronic Devices & Storage Corporation SSOP30-P-300-0.65
Weight: 0.18 g (typ.) P-VQFN32-0505-0.50-005
Weight: 0.06 g (typ.) 1 2018-11-27 TC78B041FNG/TC78B042FTG
Block diagram HUP VREF VREF2
VCC
5V Regulator
UVLO
UH HUM
HVP VH HVM WH HWP
UL HWM VL MODE WL CWCCW
RES
RESX
…