LB1696 Sanyo Semiconductor Corporation, LB1696 Datasheet
LB1696
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LB1696 Summary of contents
Page 1
... Ordering number: EN5244 Overview The LB1696 is a 3-phase brushless motor driver IC that is ideal for driving DC fan motors in air conditioners, hot-water supply systems, and the like. The LB1696 has a regulator built in, and can be used with a single power supply (motor power supply only). ...
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... C pin discharge current C pin charge start voltage C pin discharge start voltage Output current neglect time Output off time 1 Output off time 2 Regulator output voltage V CC(REG) LB1696 With arbitrarily large heat sink Independent IC Ambient temperature, Ta — ° Conditions ...
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... Truth Table Input IN1 IN2 F/R Forward L 0.0 to 0.8 V Reverse H 4.2 to 5.0 V Pin Assignment LB1696 F/R control Output IN3 F/R Source L OUT2 H H OUT1 L OUT3 L H OUT1 L OUT3 L H OUT2 L OUT1 L H OUT2 L OUT1 H H OUT3 L OUT2 ...
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... Block Diagram and Peripheral Circuit Diagram LB1696 No.5244-4/9 ...
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... IN3 , IN3 19 FG2 20 FG1 LB1696 Equivalent Circuit Supplies power to all circuits except output block. Sets the C pin charge/discharge current. In current limiter operation when the motor is locked, the charge current set by this pin becomes charge current I Sets the output off time and output current neglect time during current limiter operation ...
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... V then V off after motor stop. If, after V CC have a possibility that V voltage rises, exceeding the withstand voltage. Because the LB1696 has a regulator built in, it can be M used with a single power supply (V M transistor (NPN) and resistor to the V REG 6 ...
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... The C charging current is a constant-regulated current, which depends on resistor R1 connected to the R1 pin and resistor R2 connected to the R2 pin. In the LB1696, the charge current can be switched for when the motor is locked and for when the motor is rotating in order to support motors for a large number of applications result possible to set the output off time so that it is different for when the motor is locked and for when the motor is rotating ...
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... It is necessary to set the output off time to a suitable level for the type of motor being used. (The output off time is set by the external resistors connected to the R1 and R2 pins, and by the external capacitor connected to the C pin.) In the LB1696, the output off time when the motor is rotating can be set so that it is shorter than when the motor is locked. Set the optimal output off time for when the motor is locked, and then set the output off time for when the motor is rotating ...
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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 December, 1995. Specifications and information herein are subject to change without notice. LB1696 C pin voltage Current Limiter Operation Waveform (When Motor Is Locked) ...