STK672-330 Sanyo Semicon Device, STK672-330 Datasheet
STK672-330
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STK672-330 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 STK672-330 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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... 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 PWM frequency Note: A fixed-voltage power supply must be used. STK672-330 Symbol Conditions V max No signal CC V max No signal DD V ...
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... Internal Equivalent Circuit Block Diagram STK672-330 www.DataSheet4U.com No. 7304-3/11 ...
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... The following circuit (for a lowered current of over 0 recommended if the application needs to temporarily lower the motor current. Here, a value of close to 100 kΩ must be used for resistor RO1 to make the transistor output saturation voltage as low as possible RO1 Vref RO3 RO2 STK672-330 STK672-330 Two-phase stepping motor + ...
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... See the timing chart for the concrete details on circuit operation. Usage Notes • STK672-330 input signal functions and timing (Specifications common to the STK672-340, 350, and 360 as well) (All inputs have no internal pull-up resistor and are TTL level Schmitt trigger inputs.) ...
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... The motor current (I ) must be held within the range corresponding to the area under the curve shown in figure 3. O For example, if the operating substrate temperature Tc is 105°C, then I hold mode I must be held under I O STK672-330 max = 1 www.DataSheet4U.com must be held under I max = 1.8 A, and ...
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... Thermal design [Operating range in which a heat sink is not used] The STK672-330 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, Tc max is specified to be 105°C, and when mounted in an actual end product system, the Tc max 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 MODE RESET CWB CLOCK ENABLE FAO FAB FBO FBB 1-2 phase excitation MODE RESET CWB CLOCK ENABLE FAO FAB FBO FBB STK672-330 www.DataSheet4U.com No. 7304-8/11 ...
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... MODE RESET CWB CLOCK ENABLE FAO FAB FBO FBB Switching from 2-phase to 1-2 phase excitation MODE RESET CWB CLOCK ENABLE FAO FAB FBO FBB STK672-330 www.DataSheet4U.com No. 7304-9/11 ...
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... MODE RESET CWB CLOCK ENABLE FAO FAB FBO FBB STK672-330 www.DataSheet4U.com No. 7304-10/11 ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of March, 2003. Specifications and information herein are subject to change without notice. STK672-330 Figure ...