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LC898240-2H Datasheet(PDF) 5 Page - ON Semiconductor |
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LC898240-2H Datasheet(HTML) 5 Page - ON Semiconductor |
5 / 23 page LC898240 www.onsemi.com 5 PIN DESCRIPTION 1. HOLD Hold E2PROM. It must be connected to DVDD1. For more detail, see the E2PROM datasheet. 2. OE Output Enable For IO port control mode: - bit OERST = 0: OE acts as an input. - bit OERST = 1: OE acts as an output with respect to the pin ST transparently. For register control mode: - OE outputs the value of the bit OE_REG. 3. RSTO Driver Reset Output To force synchronization of the step position with the driver, the driver reset pulse is output once an electrical cycle, while the bit RSTAD is set 1. For IO port control mode: - RSTO outputs with respect to the pin RSTI transparently. For register control mode: - RSTO outputs the value of the bit RST_REG. 4. FR Rotation Direction For IO port control mode: - Input For register control mode: - FR outputs the value of the bit FR_REG. 5. STP Step Pulse Output 6. DVSS Digital Ground 7. DVDD1 Power Supply for the E2PROM and the Digital Portion of the Main Chip 8. RSTI Driver Reset Input for IO Port Control Mode For register control mode, it is ignored. 9. SO_M and 12. SO_E E2PROM output. They must be connected on a board. 10. CSB_M and 11. CSB_E E2PROM chip select pins. They must be connected on a board. 13. GAD High Efficient Current Control Mode The adaptive motor current control mode is enabled by GAD = H or the bit GAD_REG = 1. 14. RSB System Reset Input LC898240 is reset by RSB = L. After the reset is released, it will start the E2PROM data download to the registers. 15. CLK Clock Input Frequency range is from 840kHz through 10MHz 16. TSMOD Test Mode It must be connected to DVSS or open. 17. VREFI Reference Voltage Input It must be connected to AVDD. 18. VREFO Current Control Reference Voltage Output 19. ADCI ADC Input 20. AVSS Ground of the Analog Portion 21. AVDD Power Supply for the Analog Portion 22. AMPO Amplifier Output 23. OUTAI and 24. OUTBI Motor Signal Input 25. WP Write Protection of E2PROM 26. NC, 32. NC and 35. NC No Connection 27. INTP1 and 28. INTP0 Interpolation Setting for the Acceleration Curve For IO port control mode: - INTP[1:0] = 0h: not interpolation - INTP[1:0] = 1h: interpolate 1 point between the steps based on E2PROM data - INTP[1:0] = 2h: interpolate 3 point between the steps based on E2PROM data - INTP[1:0] = 3h: interpolate 7 point between the steps based on E2PROM data For register control mode, it is ignored. |
Número de pieza similar - LC898240-2H |
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Descripción similar - LC898240-2H |
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