LB11880 Sanyo Semiconductor Corporation, LB11880 Datasheet
LB11880
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LB11880 Summary of contents
Page 1
... Ordering number : ENN6470A Overview The LB11880 is a sensorless motor driver that also includes a loading motor driver ideal for drum motor drive in VCR products. Functions and Features • Soft switching drive • No Hall sensors required • sensors required • Built-in PG amplifier • Built-in thermal shutdown circuit • ...
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... Output on voltage Output off voltage [PG Amplifier] Input offset voltage Input bias current Common-mode input voltage range Open-loop gain Output on voltage Output off voltage Schmitt amplifier hysteresis Note: * These values are design guarantee values, and are not tested. LB11880 Symbol Conditions VREG = VREG = 5 V ...
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... Loading Block 25° Parameter 1 (high) Input voltage 2 (low) Input current Input hysteresis Saturation voltage Upper side residual voltage Upper Output transistor leakage current Lower Uper Diode forward voltage Lower Control supply current LB11880 = VREG = Symbol Conditions Sink ∆VT Vref = VS, between the output and VS ...
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... OUT Off Standby L Forward H Reverse L Brake Pd max — When mounted on the specified printed circuit board 3 (114.3 76.1 1.6 mm glass-epoxy board – Ambient temperature, Ta — VREG – OUT 2 7 OUT LB11880 BFGO VREF OUT LGND OUT 1.68 80 100 GND OUT 28 VCO ...
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... Block Diagram (Note that the values of the external components depend on the motor used.) LB11880 circuit drive Output circuit drive Output No. 6470-5/9 ...
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... VREG This power supply must be stabilized so that ripple and noise do not enter the IC. PG amplifier plus side input This pin is biased to 1/2 VREG internally. PG – amplifier minus side input amplifier linear output OUT LB11880 Function V 2 200 Equivalent circuit V REG REG ...
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... Loading motor driver output transistor power 13 supply VREF Loading motor driver output voltage setting VREG Loading motor driver logic input OUT Loading motor driver output Y 15 OUT 14 LGND Loading motor driver output transistor ground LB11880 Function VREG+VF 100 Equivalent circuit V CC VREG REG 100 Continued on next page ...
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... Triangular wave generating capacitor connection This triangular wave is used to implement soft switching in the coil output waveform The value of the capacitor connected between this pin and ground determines the operating frequency 27 CX range and the minimum operating frequency of the VCO circuit. LB11880 Function 3 3 ...
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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 February, 2003. Specifications and information herein are subject to change without notice. LB11880 Function ...