LB1660N SANYO [Sanyo Semicon Device], LB1660N Datasheet
LB1660N
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LB1660N Summary of contents
Page 1
... Ordering number: EN2551C Applications . 2-phase unipolar brushless motor (ex. DC brushless fan motor) drivers Features and Functions . Output current : 1 On-chip output protect zener diodes : 60 V (LB1660N, . 1664N) Output stage withstand voltage (LB1661, 1665) . On-chip hall input amplifier . . On-chip protector against lock With lock detect pin SANYO Electric Co ...
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... A capacitor is connected across the output and GND and the back emf is more than V 2 External zener diodes are connected to absorb the kickback voltage. Pin Assignments Truth Table IN+ IN− LB1660N, 1661, 1664N, 1665 With ( Without (Vor = LB1660N LB1661 LB1664N LB1665 OUT1 OUT2 ...
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... Maximum output current Output negative current RD flow-in current RD supply voltage Allowable power dissipation Operating temperature Storage temperature Allowable Operating Conditions 25°C Parameter Input current range Common-mode input voltage range LB1660N, 1661, 1664N, 1665 Symbol Conditions max CC V max O I ...
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... Output limit voltage 1 V Output limit voltage Output saturation voltage input voltage IN Amp input offset voltage Amp input bias current Comparator input bias current Comparator input threshold voltage LB1660N, 1661, 1664N, 1665 Conditions I = 1.0 A OLM O (sat 0 (sat 1 (sat 1 ...
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... Output supply voltage Maximum output current RD flow-in current RD supply voltage Allowable power dissipation Operating temperature Storage temperature Allowable Operating Conditions 25°C Parameter Input current range Common-mode input voltage range LB1660N, 1661, 1664N, 1665 Symbol Conditions max CC V max O I ...
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... Output transistor Output Current Output saturation voltage When external capacitors are connected to the output stages, the capacitance should not exceed 10 µF. Since the LB1660N, 1664N have a protect zener diode across collector and base, the kickback voltage induced by the coil is cut at V typ. ...
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... When the kickback voltage induced motor coil is absorbed by the zener diode across collector and base of the output transistor, this interval of time during which the transistor is turned on is used for discharge pulses. Therefore, the LB1661,1665 or LB1660N, 1664N use external zener diodes and capacitors, discharge occurs with pulses of 1 only and V ...
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... CR pin can be also used to provide on-off control.) V (sat) – Output current, I LB1660N, 1661, 1664N, 1665 Generation of discharge pulse V (LB1660N, 1664N – -0.3V (LB1661, 1665), until the normal IN V – ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of October, 1996. Specifications and information herein are subject to change without notice. LB1660N, 1661, 1664N, 1665 Instantaneous drop of power supply Normal Output off Time, t – ...