TCA3727 View Datasheet(PDF) - Siemens AG

Part Name

Description

MFG CO.

TCA3727

2-Phase Stepper-Motor Driver

Siemens AG 

TCA 3727

Characteristics

VS = 40 V; VL = 5 V; – 25 °C ≤ Tj ≤ 125 °C

Parameter

Symbol

Limit Values

min. typ. max.

Unit Test Condition

Current Consumption

from + VS

IS

from + VS

IS

from + VL

IL

from + VL

IL

–

0.2 0.5 mA Vinh = L

–

16 20

mA Vinh = H

IQ1/2 = 0, IXX = L

–

1.7 3

mA Vinh = L

–

18 25

mA Vinh = H

IQ1/2 = 0, IXX = L

Oscillator

Output charging current IOSC

–

110 –

µA –

Charging threshold

VOSCL

–

1.3 –

V–

Discharging threshold

VOSCH

–

2.3 –

V–

Frequency

fOSC

18

25 35

kHz COSC = 2.2 nF

Phase Current Selection (R1; R2)

Current Limit Threshold

No current

Hold

Setpoint

Accelerate

Vsense n

–

0

–

mV IX0 = H; IX1 = H

Vsense h 200 250 300 mV IX0 = L; IX1 = H

Vsense s 460 540 620 mV IX0 = H; IX1 = L

Vsense a 740 825 910 mV IX0 = L; IX1 = L

Logic Inputs

(IX1 ; IX0 ; Phase x)

Threshold

VI

L-input current

IIL

L-input current

IIL

H-input current

IIH

1.4 –

(H→L)

– 10 –

– 100 –

–

–

2.3 V

(L→H)

–

µA

–

µA

10

µA

–

VI = 1.4 V

VI = 0 V

VI = 5 V

Semiconductor Group

10

1998-02-01

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