Datenblatt-Suchmaschine für elektronische Bauteile |
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STK672-330 Datenblatt(PDF) 4 Page - Sanyo Semicon Device |
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STK672-330 Datenblatt(HTML) 4 Page - Sanyo Semicon Device |
4 / 11 page Sample Application Circuit • To minimize noise in the 5-V system, locate the ground side of capacitor CO2 in the above circuit as close as possible to pin 1 of the IC. Also, if at all possible, the ground used for Vref must not be common to the P.GND pattern, but must be directly wired from pin 1. • Insert resistor RO3 (47 to 100 Ω) so that the discharge energy from capacitor CO4 is not directly applied to the CMOS IC in this hybrid device. If the diode D1 has Vf characteristics with Vf less than or equal to 0.6 V (when If = 0.1 A), this will be smaller than the CMOS IC input pin diode Vf. If this is the case RO3 may be replaced with a short without problem. • Both TTL and CMOS levels are used for the pin 8, 9, 10, 11 and 12 inputs. • Since the input pins do not have built-in pull-up resistors, when the open-collector type pins 8, 9, 10, 11, and 12 are used as inputs, a 10 to 47 k Ω pull-up resistor (to V DD) must be used. • To prevent incorrect operation due to chopping noise, we recommend inserting 470 to 1000 pF capacitors between pin 1 and each of the pins 8, 9, 10, and 12. (With the open-collector type IC, we also recommend inserting a 470 to 1000 pF capacitor between pin 11 (RESETB) and pin 1 when pin 11 is used as an input.) • The following circuit (for a lowered current of over 0.2 A) is recommended if the application needs to temporarily lower the motor current. Here, a value of close to 100 k Ω must be used for resistor RO1 to make the transistor output saturation voltage as low as possible. No. 7304-4/11 STK672-330 STK672-330 Two-phase stepping motor At least 100 µF VDD = 5 V CLOCK MODE CWB 5 V 5 V RESETB 6 9 8 10 11 7 ENABLE 12 D1 RO3 RO4 20 k Ω CO4 10 µF RO1 Vref RO2 0.1 µF CO1 CO3 + + + 5 A 4 AB 3 B 2 BB 1 GND CO2 VCC 24 V P.GND ITF02170 10 µF 5 V RO1 RO2 RO3 Vref ITF02171 ITF02172 5 V RO1 RO2 RO3 Vref |
Ähnliche Teilenummer - STK672-330 |
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Ähnliche Beschreibung - STK672-330 |
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