NJM2625A

N NJM2625A www.DataSheet4U.com PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC ♦ GENERAL DESCRIPTION The NJM2625A is a 3-phase DC brush-less motor control IC with PWM control. It incorporates hall amplifiers, PWM control circuits, totem-pole pre drivers for external power MOS transistors, current limit and frequency generator circuit. The NJM2625A easily implements speed control and rotation direction control for DC motor application. ♦ FEATURES Operating Voltage Pre-Driver Circuit Current Limit Sense Voltage Internal Oscillator Forward or Reverse Direction FG Signal Output Internal Soft Start Internal ON/OFF Circuit Bipolar Technology Package Outline ♦PACKAGE OUTLINE NJM2625AD NJM2625AM (V+=8V to 18V) (Iout=+50mA/-150mA MAX.) (Current limit=0.5V ±10%) (Frequency control for external capacitor) (Output frequency to hall frequency) (External capacitor to Verr pin. (No-output is Verr pin to GND.) DIP20, DMP20 ♦PIN CONFIGRATION 1 2 3 4 5 6 7 20 19 18 17 16 15 14 13 12 8 9 10 PIN FUNCTION 11.GND 1.FG 12.ILIMIT 2.Vref 3.H1+ 13.WL 4.H114.VL 5.H2+ 15.UL 6.H216.WH 7.H3+ 17.VH 8.H318.UH 9.Verr 19.V+ 10.OSC 20.F/R 11 NJM2625AD NJM2625AM Ver 1.0 - 1 - NJM2625A www.DataSheet4U.com ♦BLOCK DIAGRAM 20.F/R V+ 3.H1+ 4.H1Rotor 5.H2+ 6.H27.H3+ 8.H3V+ 19.V + Position Decode r 16.WH 17.VH 18.UH 2.Vref Vref UVLO 13.WL 10.OSC Saw Oscillator PWM COMP Logic 14.VL 9.Verr 1.FG FG 15.UL 11.GND 12.ILIMIT -2- NJM2625A www.DataSheet4U.com ♦ABSOLUTE MAXIMUM RATINGS ...