NJM2641 Preliminary Two-phase Unipolar DC Brushless Motor Pre-Driver IC ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE The NJM2641 is a 2-phase DC brushless motor pre-driver IC. It incorporates Lock Detect and Auto Protection Circuit. The turn ON / turn OFF ratio at Auto Protection Release was set in 1:10 easy-to-use. Moreover, the pin is compatible with 48V pre-driver NJM2640. NJM2641M NJM2641E NJM2641RB1 ■ FEATURES • Operating Voltage VDD=4 to 14V • Absolute Maximum Voltage 15V • Internal Lock Detect / Auto Protection Release Circuit • Lock Alarm Output Terminal • Package Outline DMP8 / EMP8 / TVSP8 ■ BLOCK DIAGLAM ■ PIN FUNCTION 1 8 2 7 3 6 4 5 1: Vcc 2: H1 3: LA 4: H2 5: GND 6: Ct 7: OUT1 8: OUT2 -1- NJM2641 Preliminary ■ ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Hall Input Voltage Range Output Current (Peak) Lock Alarm Output Voltage Hall Input Differential Voltage Lock Alarm Output Current Operating Temperature Range Operating Junction Temperature Range Storage Temperature Range Power Dissipation SYMBOL RATINGS Vcc VIH IO UT VOLA VIHD IOLA Topr Toj Tstg 15 -0.3 ∼ VCC 70 15 2 20 -40 ∼ 85 -40 ∼ 150 -55 ∼ 150 300(DMP8) / 375(EMP8) / 400(TVSP8) PD ■ RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL Supply Voltage Hall Input Voltage Common Mode Voltage Junction Temperature -2- Vcc VICM Tj RATINGS 4 ∼ 14 1.5 ∼ Vcc-2 -40 ∼ 125 (Ta=25°C) UNIT NOTE V V mA V V mA °C °C °C - mW Device itself (Ta=25°C) UNIT (unit) NOTE V V °C - NJM2641 Preliminary ■ ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL (VDD =12V, Ta=25°C) TYP. MAX. UNIT CONDITION MIN. VCC=12V - 3.0 4.0 VCC=5V - 2.8 3.75 VHYS - 8 20 32 mV IB - - 1.0 - µA Output Voltage VOUT IOUT=20mA - VCC-1.5 - V Output Leak Current ILEAK VCC=14V - 1 10 µA Operating Current Hall Input Hysterisis Range Hall Amplifier Input Bias Current ICC mA Lock Alarm Output Voltage Lock Alarm Leak Current VLA Lock Alarm ON,ILA=5mA - - 0.5 V ILA-LEAK VLA=14V - 1 5 µA Ct Charge Current ICHG VCt=1.5V - 4.0 - µA Ct Discharge Current IDCHG VCt=1.5V - 0.4 - µA ICHG / IDCHG - - 10 - VCtH - 2.5 2.8 3.1 V VCtL - 0.6 0.7 0.8 V TON Ct=0.47µF - 0.25 - s TOFF Ct=0.47µF - 2.5 - s Charge / Discharge Current Ratio Ct H-level Cense Voltage Ct L-level Cense Voltage Auto Protection Release ON Time Auto Protection Release ON Time 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-