NJU7346 New Japan Radio Co.,Ltd, NJU7346 Datasheet
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NJU7346
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NJU7346 Summary of contents
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... Single-phase DC Brushless Motor Driver IC GENERAL DESCRIPTION The NJU7346 is a single-phase DC brushless motor driver IC. It features MOS-FET driver circuit for better saturation characteristics. It features Frequency Generator Output and Thermal Shutdown Circuit. Maximum output current is 200mA(12V). Input offset voltage is ±7mV suitable for 12V high current small fan-motor applications ...
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NJM7346 PIN FUNCTION VSP10 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Output Current (Peak) Operating Temperature Range Storage Temperature Range Power Dissipation RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL Supply Voltage ...
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... R ONL FG L Output Voltage Leak Current I FG-LEAK INPUT-OUTPUT TRUTH TABLE Input IN CONDITION - - - - - - Io=+200mA Io=-200mA Io=+200mA Io=-200mA I =5mA FGL V =12V FGL Output IN- OUTA OUTB NJU7346 (V =12V, Ta=25°C) DD MIN. TYP. MAX. - 3.0 4.0 - 180 - - 0.2 10.5 11.55 11. 0.30 0. ...
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NJM7346 POWER DISSIPATION 400 350 300 250 200 150 100 AMBIENT TEMPERATURE [D C] 125 150 100 ...
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... VDD[V] VDD - VOH Io=+200mA 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 VDD[V] IO-VOH VDD=12V 12 11.8 11.6 11.4 11.2 11 10.8 10.6 0 200 IO[mA 400 600 NJU7346 VFG - IFG VDD=12V 1 0.8 0.6 0.4 0.2 0 0.0 2.0 4.0 6.0 IFG[mA] VDD - VOL Io=-200mA 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0 VDD[V] IO-VOL VDD=12V 1.4 1.2 1 0.8 0.6 0.4 0 200 IO[mA] 8.0 10 ...
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... NJM7346 APLICATION NOTE The NJU7346 is a single-phase DC brushless motor driver IC in small VSP10 package. With minimal external components, It can drive up to 200mA of motor current for small fan application. [Application Circuit Example GND R1 Hall element R2 [Design Notes] Above application example is designed for 12V operation with motor current of 200mA. It uses the following ...
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... The output voltage of hall elements is influenced by the bias current and magnetic flux density of hall elements. The optimum input voltage of NJU7346 is 100mVp-p and higher. With such input voltage, the highest efficiency can be obtained. 3. Design of FG output resistsnce (R3) FG Out(FG:Pin2 open drain output and pull up register. A typical value 10k . The timing chart of FG Out is as follows ...