NJW4308 3 Phase Blush Less DC Motor Controller with Lead Angle ■ FEATURE ▪ Supply Voltage ▪ Exciting Angle ▪ Lead Angle Control ▪ PWM Pre-Driver ▪ PWM Control ▪ FG Output ▪ Forward / Reverse Detection ▪ PWM Oscillation Circuit ▪ Hall Bias Circuit ▪ Protection Circuit ▪ Package ■ PACKAGE OUTLINE : : : : 6.0V ~ 36V 150º ( Adjustable ) 60º 32 100mA NJW4308V ■ BLOCK DIAGLAM : ILIMIT, UVLO, TSD, LD : SSOP-32 NJW4308 4bit A/D Converter 5bit A/D Converter HB VEA VLA Hall Bias TSD VREF H1 + VREF VCC H1 H2 + UVLO H2 H3 + N.C. UH Rotor Position Decode VH H3 - WH FR FR N.C. Logic BR Brake SEL 120º 150º Control UL VL V ERR OSC Ct Saw Oscillator WL Lock Detect N.C. PWM Logic RST CK1 CK2 ILimit GND Clock Generator Ver.2010/09/03 FG