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NJM3771 Datasheet(PDF) 5 Page - New Japan Radio |
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NJM3771 Datasheet(HTML) 5 Page - New Japan Radio |
5 / 9 page NJM3771 s ELECTRICAL CHARACTERISTICS Electrical characteristics over recommended operating conditions, unless otherwise noted. -20 °C < T J < +125°C Parameter Symbol Conditions Min Typ Max Unit General Supply current I CC -38 50 mA Total power dissipation P D V MM = 40 V, IM1= 450 mA, I M2= 0 mA. 1.4 1.6 W Notes 2, 3. V MM = 40 V, IM1 = IM2 = 318 mA. 1.6 1.8 W Notes 2, 3. Turn-off delay t d T a = +25°C, dVC/dt ≥ 50 mV/µs. - 1.0 1.5 µs Note 3. Logic Inputs Logic HIGH input voltage V IH 2.0 - - V Logic LOW input voltage V IL - - 0.6 V Logic HIGH input current I IH V I = 2.4 V - - 20 µA Logic LOW input current I IL V I = 0.4 V -0.4 - - mA Reference Inputs Input resistance R R T a = +25°C - 5 - kohm Input current I R T a = +25°C, VR = 2.5 V. 0.5 1.0 mA Turn-off voltage V TO 20 29 38 mV Comparator Inputs Threshold voltage V CH R C = 1 kohms, VR = 2.5 V 430 450 470 mV | V CH1 - VCH2 | mismatch V CH,diff R C = 1 kohms - 1 - mV Input current I C -10 - 1 µA Motor Outputs Lower transistor saturation voltage I M = 500 mA - 1.00 1.20 V Lower transistor leakage current V MM = 41 V, VE = VR = 0 V, VC = VCC - - 300 µA Lower diode forward voltage drop I M = 500 mA - 1.10 1.25 V Upper transistor saturation voltage I M = 500 mA - 1.20 1.35 V Upper transistor leakage current V MM = 41 V, VE = VR = 0 V, VC = VCC - - 300 µA Upper diode forward voltage drop I M = 500 mA - 1.00 1.25 V Chopper Oscillator Chopping frequency f s C T = 3300 pF, RT = 15 kohms 25.0 26.5 28.0 kHz s THERMAL CHARACTERISTICS Parameter Symbol Conditions Min Typ Max Unit Thermal resistance Rth J-GND DIP package. - 11 - °C/W Rth J-A DIP package. Note 2. - 40 - °C/W Rth J-GND PLCC package. - 9 - °C/W Rth J-A PLCC package. Note 2. - 35 - °C/W Rth J-GND EMP package. - 13 - °C/W Rth J-A EMP package. Note 2. - 42 - °C/W Notes 1. All voltages are with respect to ground. Currents are positive into, negative out of specified terminal. 2. All ground pins soldered onto a 20 cm2 PCB copper area with free air convection. 3. Not covered by final test program. 4. Switching duty cycle D = 30%, f S = 26.5 kHz |
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