LC898240 datasheet(5/23 Pages) ONSEMI

부품명	LC898240

상세설명	Smooth Stepper Motor Controller

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LC898240

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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

Smooth Current Control Mode

The adaptive motor current control (‘smooth’)

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.

유사한 부품 번호 - LC898240

제조업체	부품명	데이터시트	상세설명
ON Semiconductor	LC898240	528Kb / 23P	High Efficient Stepper Motor Controller April 2016- Rev. P1
	LC898240-2H	528Kb / 23P	High Efficient Stepper Motor Controller April 2016- Rev. P1
	LC898240-WH	528Kb / 23P	High Efficient Stepper Motor Controller April 2016- Rev. P1
	LC898240	528Kb / 23P	High Efficient Stepper Motor Controller April 2016- Rev. P1

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유사한 부품 번호 - LC898240

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