BA6852FP Rohm, BA6852FP Datasheet
BA6852FP
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BA6852FP Summary of contents
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... Motor driver ICs Spindle and loading motor driver for PD BA6852FP The BA6852FP is a motor driver IC developed for use in PD, CD-ROM and DVD applications. In addition to having a conventional spindle motor driver, it includes a reversible motor driver for use with loading motors to allow easy system construction. ...
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... Motor driver ICs FBlock diagram BA6852FP 793 ...
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... Motor driver ICs FPin descriptions 794 BA6852FP ...
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... Motor driver ICs FElectrical characteristics (unless otherwise noted 25_C, V BA6852FP = 5V 12V, and V = 12V 795 ...
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... Motor driver ICs FMeasurement circuits (1) Measurement circuit resistance (2) Input / output table Note: Forward E < Reverse E > 796 BA6852FP Input voltage 2.4V ...
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... Motor driver ICs (3) Measurement circuits BA6852FP I : Ammeter A1 value CC1 IPS1 = 150 ( 0.1 ( Ammeter A1 value CC2 PS = OPEN * * * ( 0.1 ( Ammeter A1 value CC3 IPS3 = 150 ( 0.1 ( IPS range for which all output pins PSON : are open (input conditions IPS range for only FG and the hall ...
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... Motor driver ICs 798 BA6852FP V : Voltmeter V1value HB VPS = 5V IHB = 10mA I : (Voltmeter V2value) / 0.5 TL VPS = (input conditions With Hn = 4.0V 2.5V, HA the current that flows into With Hn = 2.5V 4.0V, the current that flows into Hall input voltage range for which HAR the output pin is as per the Input / output table ...
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... Motor driver ICs BA6852FP Torque command operation C CR voltage range E : Vary E until E = 2.5V, then COF C CR Vary E voltmeter V1 < 3mV. C This E voltage range C (see operation notes (2)). E : Ammeter value when CIN and the V1 value is V2 when 1.5V, and the V1 C value is V3 when ...
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... Motor driver ICs 800 BA6852FP V : FGSW pin voltage range when SWL the hall input and FG output are as per the table below FGSW pin voltage range when SWH the hall input and FG output are as per the table below Voltmeter V1 value FGH (Input / output table, condition 2) ...
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... Motor driver ICs BA6852FP V : With the output measurement pin OH made high level according to the input conditions, the V1 value when 600mA flows from that pin With the output measurement pin OL made low level according to the input conditions, the V2 value when 600mA flows from that pin. ...
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... Motor driver ICs 802 BA6852FP I : Ammeter A1 value CC4 IN1 = 5V, IN2 = Ammeter A1 value CC5 IN1 = 5V, IN2 = IN1 range for which OUT1 = High, IH OUT2 = Low (IN2 = Low) IN2 range for which OUT1 = Low, OUT2 = High (IN1 = Low IN1 range for which OUT1 = Low, ...
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... Motor driver ICs FOperation notes (1) Torque command The R pin voltage with respect to the torque command NF input (EC follows. BA6852FP I : Ammeter A1 value REF I = 100mA REF pin voltage range for which the REF REF output voltage can be controlled The gain G from the E pin to the R ...
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... E , reverse torque is applied to reduce speed (right rotation When the motor reverses, the reverse rotation detector operates, and the coil output is opened. Free rotation in the reverse direction by inertia. Stop 804 BA6852FP (1) Forward (E < The phase relationship between the hall input sig- ) ...
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... Motor driver ICs (4) Input / output timing chart (forward rotation) BA6852FP 805 ...
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... Motor driver ICs (5) Short brake When the BRK pin goes to high level, the upper-side output transistors (three phase) go off, and the lower-side output transistors (three phase) go on. (6) Hall input The hall pins can be connected in series or parallel. 806 BA6852FP ...
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... R1 ) VBE (Q1) – VBE (Q3) OH REF REF The V voltage that brings about the above formula is REF – V (Q2) – VBE (Q3 not apply a voltage of more than V Short the V pin you will not use it. REF BA6852FP is given by the following OH to the V pin. M2 REF 807 ...
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... GND. This is the motor cur- rent path, so take care with the PCB track width and ar- rangement on the PC board. FElectrical characteristics curves 808 (13) Thermal shutdown (TSD) When the junction temperature reaches 175_C (Typ.), the motor output is opened. There is approximately 15_C (Typ.) of temperature hysteresis. BA6852FP ...
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... Motor driver ICs FExternal dimensions (Units: mm) BA6852FP 809 ...