la6505 Sanyo Semiconductor Corporation, la6505 Datasheet
la6505
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la6505 Summary of contents
Page 1
... The sled motor driver implements two-phase stepping drive and supports direct PWM inputs. The LA6505 uses a BTL amplifier design for the focus and tracking driver blocks, and a similar design for the loading driver as well. ...
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... MUTE-SLD/LOAD : Sled driver and loading driver Low-level input voltage V MUTE L High-level input voltage V MUTE H Input current I MUTE H LA6505 Conditions Signal system supply voltage ≥ VS-* Spindle block power stage supply voltage Sled block power stage supply voltage BTL amplifier block power stage supply voltage ...
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... V OFF -BTL Maximum output voltage V O -BTL I/O gain V G -BTL Slew rate SR Input voltage range V IN -OP (BTL) LA6505 Conditions 0.5A (SINK 0.5A (SOURCE) Sink side Source side Between OSC and ground : 330 VREF = 1.65V, spindle motor driver input ...
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... V G -LOAD Slew rate SR Input voltage range VIN-LOAD Package Dimensions unit : mm (typ) 3278 17.8 (6. 0.65 1.3 0.2 (0.45) 1.5 LA6505 Conditions 0.5A Design guarantee, input buffer amplifier 25 24 0.2 SANYO : HSSOP48(375mil) Pd max – Ta 2.5 Specified circuit board : 76.1×114.3×1.6mm glass epoxy board 2 Mounted on a circuit board 1.72 1.5 1 Independent IC ...
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... _SLD1 V IN _SLD2 HB Hall system bias power supply - + V IN _LOAD Mute MUTE_LOAD (Loading) LA6505 Output Logic control FG 0.5V FF Current limiter setting OSC - + - + OSC Current limiter 0.25V FF OSC Current limiter ...
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... For the diodes between the spindle outputs (pins 15, 16, and 17), use Schottky barrier diodes with current capacities of over 1A, small temperature coefficients, and low reverse currents. LA6505 S_V CC VREF_IN V IN _SPDL MUTE_LOAD _LOAD VREF_OUT ...
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... Channel 1 input, input operational amplifier noninverting input Channel 2 input, channel 1 operational amplifier output Channel 2 input, input operational amplifier inverting input Channel 2 input, input operational amplifier noninverting input _SPDL Spindle input 48 VREF_IN Reference voltage input LA6505 Descriptions No.A0595-7/13 ...
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... Outputs for channel channel 2, and the loading driver VLOAD + 34 VLOAD - 35 LA6505 Equivalent circuit 10μA 10μ GND_S GND_S 10μA 10μ GND_S V IN _SLD1 _SLD2 12.5μ ...
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... Oscillator frequency setting. This pin sets the PWM oscillator frequency output. This pin outputs a signal synchronized with the U phase. (Single Hall sensor output) LA6505 Equivalent circuit VS_SPD U-OUT V-OUT FR FR Devices market with a broken circle are diodes added for structural reasons ...
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... Continued from preceding page. Pin No. Pin Function 24 HB Hall bias output. 6 MUTE_SLED SS and muting control 2 MUTE_LOAD inputs. These inputs control 19 SS the on/off states of the corresponding outputs. LA6505 Equivalent circuit GND_S MUTE_SLED /MUTE_LOAD /SS 75kΩ GND_S 100kΩ No.A0595-10/13 ...
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... V IN SPDL < VREF) U Input ( ( ( ( ( ( (Hall sensor input) Phase U Phase V Phase W (Output current) Phase U Phase V Phase W LA6505 Hall sensor input ...
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... The loading driver input operational amplifier is a voltage-follower circuit (V IN and are shorted together make the I/O relationship easier to see in figure 7, Block Diagram, the diagram is written as though gain is applied in the input amplifier. In the actual circuit, however, the gain occurs in the output amplifier. LA6505 MUTE SLED Loading driver output ...
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... This catalog provides information as of February, 2007. Specifications and information herein are subject to change without notice. LA6505 Forward Forward gain Input dead zone width Reverse limit voltage ...