M54679FP Renesas Electronics Corporation., M54679FP Datasheet
M54679FP
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M54679FP Summary of contents
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... M54679FP 2-Phase Stepper Motor Driver Description The M54679FP is a semiconductor integrated circuit designed for stepper motor driver used to Printer, PPC and Facsimile. Features Wide supply voltage sphere (10 – 35V). Bipolar, constant current PWM function. (Top side transistors PWM function, maximum current is 0.8 Amps). ...
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... M54679FP Pin Configuration Rev.1.0, Sep.19.2003, page N.C N P.GND N Out1A Out2A 4 39 Out1B Out2B Rs2 Vm1 Vm2 GND 11 32 GND Ph1A 16 Ph2A 17 26 Ph1B Ph2B ...
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... M54679FP Block Diagram Out1B Vm1 Ph1A Source Ph1B PWM P.GND Regout 1.25V (3.5V) 18K 10K Vref I0(1) I1(1) Rs1 S1 Pin Function Terminal Symbol Motor Supply Voltage Vm1, Vm2 Output terminals Out1A, Out1B, Out2A, Out2B Current sensor Rs1, Rs2 Power supply VCC Phase input Ph1A, Ph1B, Ph2A, Ph2B ...
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... M54679FP Absolute Maximum Ratings Parameter Motor supply voltage Output current Power supply Logic input voltage Analog input voltage Output current sensing Power dissipation Thermal derating Junction temperature Operating temperature Storage temperature Thermal Derating 6.0 (watts) 5.0 4.0 3.0 2.0 1.0 0 Recommended Operating Conditions Parameter Symbol Power supply ...
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... M54679FP Electrical characteristics Control Circuit Parameter Symbol Supply current ICC1 ICC2 ICC3 Logic input voltage Vlogic H (Ph, I1, I0, Stby terminals) Vlogic L Phase terminal input current I(Ph) H I(Ph) L I0, I1 terminals input current I(I0, I1) H I(I0, I1) L Standby terminal input I(Stby) H current I(Stby) L Current sensing I(S) Comparators input current ...
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... M54679FP Function Explanation 1. Ph inputs make a decision the output function. Ph*A Ph The outputs shut off under Ph*A and Ph*B High condition at the same time. 2. Output current and terminal of output current setting Equivalent circuit of Vref terminal. ...
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... So, the function of current sensing comparators are shut off during ms since the output power transistors signal delay circuit. M54679FP has a delay time of 3.0 s until output H-bridge power stage since Ph signal change Low to high. This delay time is enough short time for the frequency (plus rate signal and there is no problem in the normal function ...
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... M54679FP 11. Power GND terminal. Power GND is connected the anodes of flywheel diodes of bottom side. When the output H-bridge power stage goes to ON, as the flyback current go through this GND terminal, minimize the wire resistor of this GND on the board. Rev.1.0, Sep.19.2003, page ...
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... M54679FP 12. Output current timing chart under Ph inputs and I0, I1 output conditions. Under output current wave forms show the current that a motor driver is going to control, so these do not show the actual current wave forms. <4 steps function> (1) Ph1A Ph1B Ph2A Ph2B L I0(1),I0(2) L I1(1),I1(2) 100% Output current 1 ...
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... M54679FP 13. Inputs terminals. Symbol Equivalent circuit of the circumstance of input terminals. pin: Stby 18 pin: I0(1) 20 pin: I1(1) 21 pin: I0(2) 23 pin: I1(2) 22 pin: Ph1A 16 pin: Ph1B 17 pin: Ph2A 27 pin: Ph2B 26 V pin pin pin: Vref 19 Rev.1.0, Sep.19.2003, page ...
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... M54679FP Symbol Equivalent circuit of the circumstance of input terminals Fref Application Circuit 0.5 – 1.0 Rrs1 Vm V input CC input input input input Rev.1.0, Sep.19.2003, page Fref STEPPER MOTOR M 1 N.C N P.GND N.C 41 Out1A 3 Out2A 40 Out1B 4 Out2B 39 5 Rs1 Rs2 Vm1 ...
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... M54679FP Package Dimensions Rev.1.0, Sep.19.2003, page ...
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Sales Strategic Planning Div. Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble ...