STK672-520 Datasheet, PDF (1/23 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC 2-phase Stepping Motor Driver

Ordering number : ENA1179
STK672-520 ^{Thick-Film Hybrid IC}
2-phase Stepping Motor Driver
Overview
The STK672-520 is a hybrid IC for use as a unipolar, 2-phase stepping motor driver with PWM current control.
Applications
• Office photocopiers, printers, etc.
Features
• The motor speed can be controlled by the frequency of an external clock signal.
• 2-phase excitation or 1-2 phase excitation is selected according to switching the state of the MODE pin (low or high).
• The phase is maintained even if the excitation mode is switched in the middle of operation.
• The direction of rotation can be changed by applying a high or low signal to the CWB pin used to select the direction
of rotation.
• Supports schmitt input for 2.5V high level input.
• Incorporating a current detection resistor (0.33Ω: resistor tolerance ±2%), motor current can be set using two external
resistors.
• Equipped with an ENABLE pin that, during clock input, allows motor output to be cut-off and resumed later while
maintaining the same excitation timing.
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"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
82912HKPC 018-08-0039 No. A1179-1/23