Motore di ricerca datesheet componenti elettronici |
|
STK672-040-E Scheda tecnica(PDF) 10 Page - Sanyo Semicon Device |
|
STK672-040-E Scheda tecnica(HTML) 10 Page - Sanyo Semicon Device |
10 / 19 page STK672-040-E No. 5227-10/19 • M1, M2, and M3 (Excitation mode and CLK input edge timing selection) 1) Pin circuit type: Built-in pull-up resistor (20k Ω, typical) CMOS Schmitt trigger structure 2) Function: M2 0 0 1 1 M1 M3 0 1 0 1 Phase switching clock edge timing 1 2 phase excitation 1-2 phase excitation W1-2 phase excitation 2W1-2 phase excitation Rising edge only 0 1-2 phase excitation W1-2 phase excitation 2W1-2 phase excitation 4W1-2 phase excitation Rising and falling edges 3) Valid mode setting timing: Applications must not change the mode in the period 5 μs before or after a CLK signal rising or falling edge. Mode Setting Acquisition Timing • M4 and M5 (Microstepping mode rotation vector locus setting) M4 1 0 1 0 M5 1 0 0 1 Mode Circular 1 2 3 See page 11 for details on the current division ratio. • RESET (Resets all parts of the system.) 1) Pin circuit type: Built-in pull-up resistor (20k Ω, typical) CMOS Schmitt trigger structure 2) Function: - All circuit states are set to their initial values by setting the RESET pin low. (Note that the pulse width must be at least 10 μs.) At this time, the A and B phases are set to their origin, regardless of the excitation mode. The output current goes to about 71% after the reset is released. 3) Notes: When power is first applied to this hybrid IC, Vref must be established by applying a reset. Applications must apply a power on reset when the VCC2 power supply is first applied. • Vref (Sets the current level used as the reference for constant-current detection.) 1) Pin circuit type: Analog input structure 2) Function: - Constant-current control can be applied to the motor excitation current at 100% of the rated current by applying a voltage less than the control system power supply voltage VCC2 minus 2.5V. - Applications can apply constant-current control proportional to the Vref voltage, with this value of 2.5V as the upper limit. Mode switching timing Excitation counter up/down CLK input System clock Mode setting M1 to M3 Mode switching clock Hybrid IC internal setting state Phase excitation clock A06846 Phase B Phase A Circular 3 2 1 ITF02273 |
Codice articolo simile - STK672-040-E |
|
Descrizione simile - STK672-040-E |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |