Q67000-A8335 查看數據表（PDF） - Siemens AG

零件编号

产品描述 (功能)

生产厂家

Q67000-A8335

2-Phase Stepper-Motor Driver

Siemens AG 

TCA 3727

Pin Definitions and Functions

Pin No.

Function

1, 2, 19, 20

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

(1, 2, 23, 24) 1) the particular phase.

IX1 IX0 Phase Current Example of

Motor Status

H H0

H

L 1/3 Imax

LH

2/3 Imax

LL

Imax

No current

Hold

Set

Accelerate

typical Imax with

Rsense = 1 Ω : 750 mA

3

5, 6, 15, 16

(5, 6, 7, 8, 17,

18, 19, 20) 1)

4

8 (10) 1)

7, 10 (9, 12) 1)

9 (11) 1)

12 (14) 1)

11, 14

(13, 16) 1)

13 (15) 1)

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.

Ground; all pins are connected internally.

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.

Supply voltage; block to ground, as close as possible to the IC, with

a stable electrolytic capacitor of at least 10 µF in parallel with a

ceramic capacitor of 220 nF.

Logic supply voltage; either supply with 5 V or connect to + VS

across a series resistor. A Z-diode of approx. 7 V is integrated. In both

cases block to ground directly on the IC with a stable electrolytic

capacitor of 10 µF in parallel with a ceramic capacitor of 100 nF.

Push-pull outputs Q22, Q21 for phase 2 with integrated free

wheeling diodes.

Resistor R2 for sensing the current in phase 2.

Semiconductor Group

4

1998-02-01

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