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| NJU7325 Single-Phase DC Brushless Motor Driver IC GENERAL DESCRIPTION The NJU7325 is dual power amplifiers. PACKAGE OUTLINE It features MOS-FET output for better saturation characteristics. It is suitable for small fan-motor applications. NJU7325R/RB1 FEATURES Single Supply Operating Voltage VDD=2.4 to 5.5V Low Operating Current Low Saturation Output Voltage Vsat=0.35V @Io=250mA C-MOS Technology Package VSP8, TVSP8 BLOCK DIAGRAM 1 : A OUTPUT 2 : A- INPUT 3 : A+ INPUT 4 : VSS 5 : B+ INPUT 6 : B- INPUT 7 : B OUTPUT 8 : VDD 1 2 3 4 Ach 8 - + 7 Bch + - 6 5 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage RATINGS +7.0 -0.3 to VDD+0.3 -40 to +85 -50 to +150 400 SYMBOL (unit) VDD (V) Vid (V) Topr (C) Tstg (C) PD (mW) (Ta=25C) NOTE Operating Temperature Range Storage Temperature Range Power Dissipation VSP8/TVSP8 (Single) -1- NJU7325 RECOMMENDED OPERATING CONDITION VDD = 2.4V 5.5V ELECTRICAL CHARACTERISTICS PARAMETER SYMB OL IDD VIO IIO IIB RIN VICM VOM AV CMRR PSRR FT SR CONDITION No Load Condition Follower Vo=2.5V : 1 circuit Io=+250mA Io=-250mA VICM=0.4 to 4.0V VDD=4.5 to 5.5V CL=10pF ; Open Voltage Follower Loop , RL=16.5 : (Ta=25C, VDD=5V) MIN. Voltage -15 0.4~4.0 4.55 55 53 55 3.0 10 10 1012 4.65 0.35 1.5 1 4.0 +15 0.45 mA mV pA pA V V dB dB dB MHz V/s TYP. MAX UNIT Operating Current Input Offset Voltage Input Offset Current Input Bias Current Input Impedance Input Common Mode Voltage Range Maximum Output Voltage Range Large-Signal Voltage gain Common Mode Rejection ration Supply Voltage Rejection ration Unity Gain Bandwidth Slew Rate Note1) Oscillation margin of NJU7325 will be narrow if the application features light load-current and low-gain (i.e. voltage follower). Maintain the value of stray capacitance at the output terminal with less than 100pF to prevent the oscillation. Note2) Place decoupling-capacitor near VSS and VDD pins. -2- NJU7325 Application Circuit M VDD 1 Ach 2 3 4 8 - + 7 Bch + - 6 5 VSS Note) Place decoupling-capacitor near VSS and VDD pins. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -3- |
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