Electronic Components Datasheet Search |
|
STK672-110 Datasheet(PDF) 5 Page - Sanyo Semicon Device |
|
STK672-110 Datasheet(HTML) 5 Page - Sanyo Semicon Device |
5 / 9 page Usage Notes • 5-V system input pins [RESETB and CLOCK (Input signal timing when power is first applied)] As shown in the timing chart, a RESETB signal input is required by the driver to operate with the timing in which the F1 gate is turned on first. The RESETB signal timing must be set up to have a width of at least 20 µs, as shown below. The capacitor CO4 and the resistor RO3 in the application circuit form simple reset circuit that uses the RC time constant rising time. However, when designing the RESETB input based on CMOS levels, the application must have the timing shown in figure 1. Figure 1 RESETB and CLOCK Signals Input Timing No. 6041-5/9 STK672-110 See the timing chart for details on the CLOCK, MODE, CWB, and other input pins. [Vref <Motor current peak value setting>] In the sample application circuit, the peak value of the motor current (IO) is set by RO1, RO2, and VDD (5 V) as described by the formula below. IOH = Vref ÷ Rs Here, Rs is hybrid IC internal current detection resistor Vref = (R02 ÷ (R01 + R02)) × 5 V STK672-110 : Rs = 0.22 Ω • Allowable motor current operating range The motor current (IO) must be held within the range corresponding to the area under the curve shown in figure 4. For example, if the operating substrate temperature Tc is 105°C, then IO must be held under IO max = 1.8 A, and in hold mode IO must be held under IO max = 1.5 A. Figure 2 Motor Current IO Flowing into the Driver IC Rise of the 5-V supply voltage RESETB signal input CLOCK signal At least 20 µs At least 10 µs |
Similar Part No. - STK672-110 |
|
Similar Description - STK672-110 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List 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 |