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SDI-C403
1,5 A - 40 Vdc Bi-CMOS IC for 4 phases step motor microstepping driving.
Technical data
* Driver * Chopper frequency * Current per phase * Output voltage * Step angle * Inputs * Output
: Bipolar chopper PWM; : 20 / 40 kHz; : 1,5 A rms ( 2,5 A peak );
: 40 Vdc max;
: 1 - 1/2 - 1/4 - 1/8; : step, direction, drive enable, current reduction; ( CMOS type with integrated 40 Kohm pull-up resistors );
drive o:m status monitor ( 2 mA max.) ; * Package .c : CPP - 25 pins ( 25 W ); * Power supply PWM 4u : 24 Vdc ( 40 Vdc max ); et ; elogic :: 5- Vdc 10%85 C. * Operating temperature 40 / + sh ta da . w w w
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SDI-C403
Block Diagram
M1 M2 CW / CCW CK 1 CK 2 VCC MO VMA
13 8 9 5 7
DECODER
11
DECODER ENABLE RESET
24 23
BRIDGE DRIVER
OA
20
O A-
+
-
6 2 3 4
OSC DECODER OUTPUT CURRENT CONTROL DECODER ENABLE RESET BRIDGE DRIVER
21 15 19 16
NFA VNF RNFA
RESET ENABLE OSC C OSC
VMB OB
O B-
REF IN
10
MAX CURRENT LIMIT
OUTPUT CURRENT CONTROL
+
-
18 22 17
PG-A
(Power GND A)
NFB VNF RNFB
1
SG
(Signal GND)
PG-B
(Power GND B)
12 14 25 Pins : No connection
36 5
14
17 3.7
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
16 17 18 19 20
21 22 23 24 25
3.9
1.2 1.27 PITCH 0.55
0.4 2
Dimensions in mm
( Dimensioni in mm )
ITALY EVER SNC DI ING. CALDI & C. Via del Commercio, 2/4 Loc. San Grato, Z.I. - 26900 LODI (ITALY) Tel.++39 0371 412318 - Fax++39 0371 412367 e-mail : infoever@everelettronica.it web: www.everelettronica.it GERMANY Technologiezentrum - Europaplatz D-52068 AACHEN Tel.++49 (0)241 9631836 - Fax ++49 (0)241 9631835
Doc. : CM0004-00-SDI-C403_GB.p65-01 03-dic-2001 Pag. 2 of 2.

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