NJU7328 Single-phase DC Brushless Motor Driver IC ♦GENERAL DESCRIPTION ♦ PACKAGE OUTLINE The NJU7328 is a single-phase DC brushless motor driver IC for small fan-motor application. It features MOS-FET driver circuit for better saturation characteristics. Slew late of amplifiers and feedback resistors are optimized to achieve low-noise motor operation. The NJU7328 also includes. Frequency generator (FG) output for various control needs. NJU7328RB1 ♦ FEATURES • Single Supply • Operating Voltage VDD =2.4 ∼ 5.5V • Low Operating Current • Low Saturation Output Voltage Vsat=±0.35V @Io=±250mA • C-MOS Technology • FG Output • Package Outline TVSP8 ♦ PIN CONFIGURATIONS PIN FUNCTION 1 2 8 A – + B – + 1: A OUTPUT 2: Reverse INPUT 3: Non-Reverse INPUT 4: Vss 5: FG 6: NC 7: B OUTPUT 8: VDD 7 3 6 4 5 - 1- NJU7328 ♦ ABUSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER RATINGS SYNBOL(unit) Supply Voltage Input Voltage Operating Temperature Range Storage Temperature Range Power Dissipation +7.0 -0.3 ∼ VDD +0.3 VDD (V) VID (V) -40 ∼ +85 Topr (°C) -50 ∼ +150 400 Tstg (°C) PD (mW) NOTE TVSP8 (Single) ♦ RECOMMENDED OPERATING CONDITIONS VDD=2.4V∼5.5V ♦ ELECTRICAL CHARACTERISTICS PARAMETER Operating Voltage Range Operating Current SYSMBOL (V+=5V, Ta=25°C) CONDITION MIN. TYP. MAX. UNIT VDD - 2.4 5.0 5.5 V IDD - - 3.0 4.0 mA Input Offset Voltage VIO - -15 - -15 mV Input Common Mode Voltage Range VICM - 0.4∼4.0 - - V Maximum Output Voltage Range VOM Io=+250mA 4.55 4.65 - Io= -250mA - 0.35 0.45 Feedback Resistance RF - 22.0 27.5 33.0 kΩ FG H Leak Current FGH 2pin=0V,pin=5V,RP=10kΩ - - 1.0 µA FG L Voltage FGL 2pin=5V, 3pin=0V,RP=10kΩ - - 0.3 V - 2- V NJU7328 ♦ APPLICATION M VDD 1 2 8 B + – A – + 7 6 3 4 5 Hall Sensor VSS The specifications on this data book are only given for information, without any guarantee as regards either mistakes or omissions. The application circuit in this data book 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-