LB1660 Sanyo, LB1660 Datasheet
LB1660
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LB1660 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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... Classification The LB1660 series are classified by the package and whether the on-chip output stage zener diode is used or not, as follows. Output stage zener diode Package DIP8 (Pd = 1.2 W) DIP16F ( recommended to use the LB1661, 1665 in the following cases 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 ...
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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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... Comparator input bias current Comparator input threshold voltage Pd max – Ta Ambient temperature, Ta – °C [Design Specifications] (1) Supply voltage The hall amp and control block of the LB1660 series are supplied with power from the on-chip parallel regulator. Set the DC resistance R1 across V and fan motor ...
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... Lock detect threshold voltage The LB1660 series have the function to stop the output drive after the lapse of a given period of time when a motor is locked, and period of time can be set by C, R3. The CR pin peripheral equivalent circuit is shown below. The LB1660 series generate the CR pin discharge pulse when the phase changes, (detection of rotation) ...
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... The allowable CR setting value is given in the diagram. (3) Restart after lock detection The LB1660 series are so designed that when motor lock is detected and the output stage transistor is turned off the drive-off state is kept even after motor lock is released. The method of restart is shown below. ...
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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 – ...