STK672-110 Sanyo Semicon Device, STK672-110 Datasheet
STK672-110
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STK672-110 Summary of contents
Page 1
... IC. It features power MOSFETs in the output stage and a built-in phase signal distribution IC. The incorporation of a phase distribution IC allows the STK672-110 to control the speed of the motor based on the frequency of an external input clock signal. It supports two types of excitation for motor control: 2-phase excitation and 1-2 phase excitation ...
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... V supply current DD Output current FET diode forward voltage Output saturation voltage High-level input voltage Low-level input voltage Input current Vref input voltage Vref input bias current Note: A fixed-voltage power supply must be used. STK672-110 Symbol Conditions V max No signal CC V max No signal DD V max ...
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... Internal Equivalent Circuit Block Diagram STK672-110 No. 6041-3/9 ...
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... A and BB may not be driven. Increase the value of the capacitor CO4 and check circuit operation again. • See the timing chart for the concrete details on circuit operation. STK672-110 ) characteristics into account, the resistor RO1 must not exceed 100 kΩ. Function Two-phase stepping motor At least 100 µ ...
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... Figure 2 Motor Current Vref Rs Here hybrid IC internal current detection resistor OH Vref = (R02 (R01 + R02 STK672-110 : Rs = 0.22 Ω • Allowable motor current operating range The motor current (I ) must be held within the range corresponding to the area under the curve shown in figure 4. O For example, if the operating substrate temperature Tc is 105° ...
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... Thermal design [Operating range in which a heat sink is not used] The STK672-110 package has a structure that uses no screws, and is recommended for use without a heat sink. This section discusses the safe operating range when no heat sink is used. In the maximum ratings specifications, Tcmax is specified to be 105°C, and when mounted in an actual end product system, the Tcmax value must never be exceeded during operation. Tc can be expressed by formula (A) below, and thus the range for ∆ ...
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... Timing Chart 2-phase excitation Gate F1 Gate F2 Gate F3 Gate F4 1-2 phase excitation Gate F1 Gate F2 Gate F3 Gate F4 STK672-110 No. 6041-7/9 ...
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... Gate F1 Gate F2 Gate F3 Gate F4 Switching from 2-phase to 1-2 phase excitation Gate F1 Gate F2 Gate F3 Gate F4 STK672-110 No. 6041-8/9 ...
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... This catalog provides information as of January 1999. Specifications and information herein are subject to change without notice. STK672-110 Figure 5 Continuous 2-phase excitation operation Motor used:R = 0.63 Ω ...