NJM3517E2 NJR, NJM3517E2 Datasheet
NJM3517E2
Specifications of NJM3517E2
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NJM3517E2 Summary of contents
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... Bi-level drive mode for high step rates • Voltage-doubling drive possibilities • Half-step position-indication output • Minimal RFI • Packages DIP16 / EMP16 BLOCK DIAGRAM NJM3517 RC STEP DIR HSM INH Figure 1. Block diagram V CC POR Mono Phase Logic P B NJM3517 PACKAGE OUTLINE NJM3517E2 NJM3517D2 GND ...
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PIN CONFIGURATIONS GND 3 NJM 3517D2 DIR 6 STEP 7 Ø Fugure 2.Pin configurations PIN DESCRIPTION DIP EMP-pack. Symbol Description Phase output 2, ...
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FUNCTIONAL DESCRIPTION The circuit, NJM3517 high performance motor driver, intended to drive a stepper motor in a unipolar, bi-level way. Bi-level means that during the first time after a phase shift, the voltage across the motor is increased ...
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DIR — Direction DIR determines in which direction steps will be taken. Actual direction depends on motor and motor connections. DIR can be changed at any time, but not simultaneously with STEP, see timing diagram, figure 6. HSM determines whether ...
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ABSOLUTE MAXIMUM RATINGS Parameter Voltage Logic supply Second suppl Logic input Current Phase output Second-level output Logic input The zero output Temperature Operating junction temperature Storage temperature Power Dissipation (Package Data) Power dissipation DIP package. ...
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ELECTRICAL CHARACTERISTICS Electrical characteristics + Parameter Symbol Supply current I CC Phase outputs Saturation voltage V PCE Sat Leakage current I PL Turn on, turn off Second-level outputs Saturation voltage ...
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PURPOSE OF EXTERNAL COMPONENTS For figures 3 and 4. Note that “Larger than …” is normally the vice versa of “Smaller than … .” Component Purpose D1, D2 Passes low power to motor and prevents high power from shorting through ...
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DIR H INH L HSM H STEP PB1 P PB2 P PA1 P P PA2 Figure 7. Full-step mode, forward. 4-step sequence. Gray-code +90 phase shift. DIR H INH L HSM ...
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Figure 12. Diode turn-off circuit Figure 15. Power return turn-off circuit INPUT AND OUTPUT SIGNALS FOR DIFFERENT DRIVE MODES The pulse diagrams, figures 7 through 10, show the necessary input signals and the resulting output signals for each drive ...
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To change actual motor rotation direction, exchange motor connections Half-stepping. in the half-step mode, the power input to the motor alternates between one or two phase windings. In half-step mode, motor resonances are reduced ...
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TYPICAL CHARACTERISTICS V sat [V] LCE 2 + 2.0 1.5 1.0 0 0.1 0.2 0.3 0.4 I [A] L Figure 17. Typical second output saturation voltage vs. output current Output Current [mA ...
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Power return for unipolar drive (figure 15) Relatively high V gives: Z — Relatively fast current decay — Energy returned to power supply — Only small energy losses — Winding leakage flux must be considered — Potential ...