BA6852 Rohm, BA6852 Datasheet
BA6852
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BA6852 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 5V 12V, and V = 12V BA6852FP 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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... IPS range for which all output pins PSON : are open (input conditions IPS range for only FG and the hall PSOP : bias operate (input conditions range for which the output pins PSOFF : are as in the Input / output table (input conditions BA6852FP 797 ...
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... Hall input voltage range for which HAR the output pin is as per the Input / output table Hall input level for which the output INH pin is as per the Input / output table * Hin BA6852FP ) * = 2.5V ...
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... If the V1 value is V2 when 1.5V, and the V1 C value is V3 when {(V2 * V3) / (2.0 * 1.5 0 BRK pin voltage range when all SBON output pins are low BRK pin voltage range when all SBOFF output pins are as per the Input / output table. BA6852FP 799 ...
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... V : 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) IFG = *10 A FGSW = Voltmeter V1 value FGL (Input / output table, condition 1) IFG = 3mA FGSW = 0V BA6852FP ...
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... V2 value when 600mA flows from that pin The voltage difference V3 between HYS ) * H and H that switch the FG pin 2.5V C FGSW = Ammeter A1value VMD Output open (input conditions BA6852FP 801 ...
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... IN2 range for which OUT1 = High, OUT2 = Low (IN1 = High Ammeter A2 value when IN1 = 2V IH Ammeter A3 value when IN2 = Sum of V1 (the value when 200mA is CE flowing from the output high level pin) and V2 (the value when 200mA is flowing to the output low level pin). BA6852FP ...
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... REF REF output voltage can be controlled The gain G from the E pin to the current) is determined by the R NF tance 0. The torque limit current I is given 0. (A BA6852FP (output NF detector resis- 803 ...
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... Fig.18, and the re verse rotation detector circuit does not operate. (2) Reverse (E > The phase relationship between H opposite to that for forward rotation, and the re- verse rotation detector circuit operates to switch the output off and leave it in the open state. BA6852FP ) ) and ...
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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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... 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 ...