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NJM2625 Dataheets PDF



Part Number NJM2625
Manufacturers New Japan Radio
Logo New Japan Radio
Description PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC
Datasheet NJM2625 DatasheetNJM2625 Datasheet (PDF)

NJM2625 PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC ♦GENERAL DESCRIPTION The NJM2625 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 NJM2625 easily implements speed control and rotation direction control for DC motor application. ♦PACKAGE OUTLINE NJM2625D ♦FEATURES •Operating Voltage •Pre-Driver Circuit •Current.

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NJM2625 PWM TYPE 3-PHASE DC BRUSHLESS MOTOR CONTOROL IC ♦GENERAL DESCRIPTION The NJM2625 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 NJM2625 easily implements speed control and rotation direction control for DC motor application. ♦PACKAGE OUTLINE NJM2625D ♦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 (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 NJM2625M ♦PIN CONFIGRATION 1 2 3 4 5 6 7 8 9 10 NJM2625D NJM2625M 20 19 18 17 16 15 14 13 12 11 PIN FUNCTION 1.FG 11.GND 2.Vref 12.ILIMIT 3.H1+ 13.WL 4.H1- 14.VL 5.H2+ 15.UL 6.H2- 16.WH 7.H3+ 17.VH 8.H39.Verr 18.UH 19.V+ 10.OSC 20.F/R Ver 1.0 - 1 - NJM2625 ♦BLOCK DIAGRAM 20.F/R 3.H1+ 4.H15.H2+ 6.H27.H3+ 8.H3- 19.V+ 2.Vref Rotor Position Decode r V+ Vref UVLO 10.OSC 9.Verr Saw Oscillator PWM COMP Logic 1.FG 11.GND FG V+ 16.WH 17.VH 18.UH 13.WL 14.VL 15.UL 12.ILIMIT -2- NJM2625 ♦ABSOLUTE MAXIMUM RATINGS (Ta=25°C) PARAMETER Maximum Supply Voltage Power Dissipation SYMBOL V+ PD Operating Temperature Range Storage Temperature Range Topr Tstg RATINGS 20 (DIP20) 700 (DMP20) 350 -40 ∼ +85 -50 ∼ +150 UNIT V mW °C °C ♦ELECTRICAL CHARACTERISTICS (V+=12V, Ct=1000pF, Cref=1µF, Ta=25°C) Total Device PARAMETER SYMBOL TEST CONDITIONS MIN. Supply Voltage V+ 8.0 Under Voltage Sense Voltage (Under Voltage Lock Out) Hysteresis Voltage (Under Voltage Lock Out) Supply Current UVLO ∆UVLO Icc Output Enable V+ Increasing RL=∞ PWM Duty=50% 7.00 0.4 - TYP. - 7.25 0.5 15.0 MAX. 18.0 7.50 UNIT V V 0.6 V 22.0 mA Hall Sensor Section PARAMETER Hysteresis Voltage Input Common mode Voltage range Input Bias Current SYMBOL Vhys Vicm TEST CONDITIONS RL=470Ω RL=470Ω IB MIN. - 1.5 - TYP. 30 - - MAX. - 10.5 UNIT mV V 600 nA Output Section PARAMETER Output Voltage 1 Output Voltage 2 SYMBOL Voh Vol TEST CONDITIONS Isource=50mA Isink=150mA MIN. 10 - TYP. 10.3 1.5 MAX. - 2.0 UNIT V V Over Current Sense Section PARAMETER Sense Voltage Input Voltage Range Input Bias Current SYMBOL Vth Vip IIB TEST CONDITIONS MIN. 0.45 - TYP. 0.50 - -0.9 MAX. 0.55 3.0 -5.0 UNIT V V µA Oscillator Section PARAMETER Oscillation Frequency Oscillate Fluctuations (Line Regulation) PWM0% Sense Voltage PWM100% Sense Voltage Saw Wave Peak Voltage Saw Wave Bottom Voltage SYMBOL TEST CONDITIONS fosc ? fosc/? V V+=8V to 18V PWM0 PWM1 Vpfosc Vbfosc PWM DUTY=0% PWM DUTY=100% MIN. 20 - 5.40 4.75 0.50 TYP. 25 0.01 5.00 0.65 MAX. 30 5.00 0.35 - 5.25.



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