Q67000-A8302 Просмотр технического описания (PDF) - Infineon Technologies

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Q67000-A8302

2-Phase Stepper-Motor Driver Bipolar IC

Infineon Technologies 

TCA 3727

Ι10 1

Ι11 2

Phase 1 3

OSC 4

GND 5

GND 6

GND 7

GND 8

Q11 9

R1 10

+VS 11

Q12 12

24

23

22

21

20

19

18

17

16

15

14

13

IEP00898

Ι 20

Ι21

Phase 2

Inhibit

GND

GND

GND

GND

Q21

R2

+VL

Q22

Figure 2 Pin Configuration TCA 3727 G (top view)

Table 1

Pin Definitions and Functions

Pin No.

Function

1, 2, 19, 20

Digital control inputs IX0, IX1 for the magnitude of the current of the

(1, 2, 23, 24)1) particular phase. See Table 2.

3

Input Phase 1; controls the current through phase winding 1. On

H-potential the phase current flows from Q11 to Q12, on L-potential in

the reverse direction.

5, 6, 15, 16

(5, 6, 7, 8, 17,

18, 19, 20)1)

Ground; all pins are connected internally.

4

8 (10)1)

7, 10

(9, 12)1)

Oscillator; works at approx. 25 kHz if this pin is wired to ground

across 2.2 nF.

Resistor R1 for sensing the current in phase 1.

Push-pull outputs Q11, Q12 for phase 1 with integrated free-

wheeling diodes.

Data Sheet

3

Rev. 2.0, 2004-10-01

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