NJU7343

NJU7343 Single-phase DC Brushless Motor Driver IC ■ GENERALDESCRIPTION ■ PACKAGE OUTLINE The NJU7343 is single-phase DC brushless motor driver IC designed for a small fan motor. Adopting the CMOS process, it can provide a low saturation output voltage that is effective in high current operation. It has Lock Detect / Auto Reset and Thermal Shutdown Circuit for safety fan operation, and it has FG output function as useful function. NJU7343R ( MSOP10 (VSP10) ) It is available in a small MSOP10 (VSP10) package, which makes motors thin and small. It is suitable for small and high output fan motor applications. ■ FEATURES Operating Voltage 2.2 to 5.5V Lock Detect / Auto Release FG Output Thermal Shutdown Circuit Low Operating Current Low Saturation Output Voltage Vsat= ±0.25V @Io=±500mA Input offset voltage ±5mV CMOS Technology Package Outline MSOP10 (VSP10)* *MEET JEDEC MO-187-DA ■ BLOCK DIAGRAM 1 LD 2 3 4 5 TSD ■ PIN FUNCTION 1: Ct 10 2: FG 3: VDD 4: OUT B 9 5: Vss 6: Vss 7: OUT A 8 8: VDD 9: IN10: IN+ 7 (Note) All VDDpins should be connected to the power 6 supply and all VSS pins should be connected to the ground respectively. Otherwise, the electrical characteristics may not satisfy specifications Ver.2013-09-09 -1- NJU7343 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Output Current (Peak) Operating Temperature Range Junction Temperature Range Storage Temperature Range Power Dissipation RATINGS +7.0 -0.3...