Document
NJU7347
Single-phase DC Brushless Motor Driver IC
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
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.
It is suitable for 12V high current small fan-motor applications.
NJU7347R
s FEATURES
• Operating Voltage
3.5 to 14V
• Frequency Generator Output
• Thermal Shutdown Circuit
• Lock Detect / Auto Release Circuit
• FG Output
• Low Operating Current
• Low Saturation Output Voltage
• Vsat=±0.3V @Io=±200mA
• CMOS Technology
• Package Outline
VSP10
s BLOCK DIAGLAM
s PIN FUNCTION
1 LD
2
3
1: Ct
2: FG
3: VSS 10 4: OUT B
5: VDD 6: VDD 9 7: OUT A
8: VSS 9: IN8 10: IN+
4 7 (Note) TSD All VDD and Vss pins should be connected the power supply and the ground respectively.
5 6 Otherwise, .