NJU7347 New Japan Radio Co.,Ltd, NJU7347 Datasheet
NJU7347
Related parts for NJU7347
NJU7347 Summary of contents
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... Single-phase DC Brushless Motor Driver IC GENERAL DESCRIPTION The NJU7347 is single-phase DC brushless motor driver IC. It features MOS-FET driver circuit for better output characteristics. It features Lock Detect, 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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... NJU7347 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Output Current (Continuance) Output Current (Peak) Operating Temperature Range Storage Temperature Range Power Dissipation RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL Supply Voltage V DD Output Current RATINGS SYMBOL (unit) 15 -0.3 V +0.3 DD 200 I (mA) ...
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... Charge Current CHG Lock Detect I Discharge Current DCHG Charge / Discharge Ratio CHG Clamp Voltage V CL Detect Voltage V ID CONDITION - - - - - - Io=+200mA Io=-200mA Io=+200mA Io=-200mA I =5mA FG V =12V DCHG - - NJU7347 Preliminary (V =12V, Ta=25°C) DD MIN. TYP. MAX. - 3.0 5.0 - 180 - - 0.2 10.5 11.55 11. 0.30 0. 0.6 ...
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... NJU7347 TRUTH TABLE IN POWER DISSIPATION 400 350 300 250 200 150 100 Input IN- Ct OUTA AMBIENT TEMPERATURE [D C] Output OUTB 125 150 100 ...
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... VDD-IDD IN+=VDD, IN-=VDD VDD[V] VDD-VOH Io=200mA 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 0.0 2.0 4.0 6.0 8.0 VDD[V] IO － VOH VDD=12V 12 11.8 11.6 11.4 11.2 11 10.8 10.6 0 200 IO[mA] 1 0.8 0.6 0.4 0 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 10.0 12.0 14.0 16.0 1.4 1.2 0.8 0.6 0.4 0.2 400 600 NJU7347 VFG-IFG VDD=12V IFG[mA] VDD-VOL Io=200mA 0 0.0 2.0 4.0 6.0 8.0 10.0 VDD[V] VOL － IDD VDD=12V 200 IDD[mA] Preliminary 8 12.0 14.0 16.0 400 600 - 5 - ...
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... NJU7347 APPLICATION NOTE The NJU7347 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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... VCL VID Toff Ton Lock Protection Operating Time DD for effective use of common-mode input voltage range Release Toff -4V and the input signal must be within the range. NJU7347 Preliminary - 7 - ...
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... NJU7347 The output voltage of hall elements is influenced by the bias current and magnetic flux density of hall elements. The optimum input voltage of NJU7347 is 100mVp-p and higher. With such input voltage, the highest efficiency can be obtained. 4. 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 ...