LV8227LG Sanyo Semiconductor Corporation, LV8227LG Datasheet
LV8227LG
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LV8227LG Summary of contents
Page 1
... LV8227LG Overview The LV8227LG is a system motor driver IC that implements all the motor driver circuits needed for MD and UMD (Universal Media Disk) products. The LV8227LG provides a three-phase PWM spindle driver, a sled driver (as two three-phase stepping motor driver channels), and focus and tracking drivers (as two PWM H bridge driver channels). ...
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... T min H-Bridge Input Pins (FI1, FI2, RI1, and RI2) High-level input voltage range Low-level input voltage range LV8227LG Conditions STALL pin: high (operating) Conditions: ST1 and ST2 pins STALL pin: low (standby mode) STALL pin: high (operating) Conditions: ST1 and ST2 pins H bridge (2 channels): 88 ...
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... × L × × Focus and Tracking Blocks STALL FI1, 2 RI1 × × Z:open LV8227LG 0.725 0.65 VI1, 2 WI1, 2 UO1, 2 VO1 PWM ...
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... Block Diagram LV8227LG No.A0288-4/10 ...
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... Spindle and sled block PWM signal inputs D5 PWM2 The output transistors will be on when these inputs are high. A7 UI2 Spindle and sled block logic inputs B5 VI2 B7 WI2 B1 UI1 D3 VI1 E2 WI1 E5 RI2 Actuator H-bridge block logic inputs H7 FI2 G3 RI1 H2 FI1 LV8227LG Description Equivalent circuit Continued on next page. No.A0288-5/10 ...
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... Small-signal system circuit power supply A capacitor must be inserted between this pin and ground. D4 CPUI1 Inputs for the OUT sides of the comparators H4 CPVI1 for each of the spindle phases G4 CPWI1 F4 COM1 Spindle comparator common input LV8227LG Description Equivalent circuit Continued on next page. No.A0288-6/10 ...
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... Connect the actuator coil to these pins. G2 PGND1 H bridge 1 output block ground H8 VMF2 H bridge 2 drive power supply F6 VMR2 Capacitors must be inserted between these pins and ground. G6 FO2 H bridge 2 output G7 RO2 Connect the actuator coil to these pins. G8 PGND2 H bridge 2 output block ground LV8227LG Description Equivalent circuit No.A0288-7/10 ...
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... Pin Assignments LV8227LG No.A0288-8/10 ...
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... Application Circuit Example LV8227LG No.A0288-9/10 ...
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... SANYO Semiconductor 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, 2006. Specifications and information herein are subject to change without notice. LV8227LG PS No.A0288-10/10 ...