LB1694 Sanyo Semiconductor Corporation, LB1694 Datasheet
LB1694
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LB1694 Summary of contents
Page 1
... Ordering number: EN5243 Overview The LB1694N 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. Features . 3-phase brushless motor driver. . Withstand voltage output current: 2 Current limiter built in. . Low-voltage protector circuit built in. ...
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... Hysteresis width V C pin charge current C pin discharge current C pin charge start voltage C pin discharge start voltage Output current neglect time Output off time LB1694N 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 LB1694N 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 LB1694N No.5243-4/8 ...
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... IN3 , IN3 19 FG2 20 FG1 LB1694N Equivalent Circuit Diagram Supplies power to all circuits except output block. Sets the C pin charge/discharge current. Sets the output off time and output current neglect time during current limiter operation. Output pin 1 Output pin 2 Output pin 3 Output current detection pin ...
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... RF pin and GND. When the RF pin voltage reaches 0.5 V (typ), the current limiter f operates so that the output current is limited to the 0.5/R LB1694N – 1.8 V). An input level that is at least three times greater than the hysteresis CC ), the output transistor on the sink side turns off. This protector prevents LVSD is reduced ...
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... The current limiter is so designed that current limit function turns on to turn off the sink side output transistor and then turn on the transistor again after off period of a fixed time (output off time) has elapsed. Since the LB1694N uses this output switching method for the current limiter hardly necessary to consider ASO in current limiter operated mode as compared with the output unsaturated current limited one ...
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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. LB1694N C pin voltage Fig. 1 ...