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PDF PBL3717A Data sheet ( Hoja de datos )
| Número de pieza | PBL3717A | |
| Descripción | STEPPER MOTOR DRIVER | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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. FULL STEP - HALF STEP - QUARTER STEP
OPERATING MODE
. BIPOLAR OUTPUT CURRENT UP TO 1 A
. FROM 10 V UP TO 46 V MOTOR SUPPLY
VOLTAGE
. LOW SATURATION VOLTAGE WITH INTE-
GRATED BOOTSTRAP
. BUILT IN FAST PROTECTION DIODES
. EXTERNALLY SELECTABLE CURRENT
LEVEL
. OUTPUT CURRENT LEVEL DIGITALLY OR
ANALOGUE CONTROLLED
. THERMAL PROTECTION WITH SOFT INTER-
VENTION
PBL3717A
STEPPER MOTOR DRIVER
Powerdip 12 + 2 + 2
(Plastic Package)
ORDER CODE : PBL3717A
DES CRI P TI O N
The PBL3717Ais a monolithic IC which controls and
drives one phase of a bipolar stepper motor with
chopper control of the phase current. Current levels
may be selected in threesteps by means of two logic
inputs which select one of three current compara-
tors. When both of these inputs are high the device
is disabled. A separate logic input controls the direc-
tion of current flow.
A monostable, programmed by an external RC net-
work, sets the current decay time.
The power section is a full H-bridge driver with four
internal clamp diodes for current recirculation. An
externalconnectionto the lower emitters is available
for the insertion of a sensing resistor. Two
PBL3717As and few external components form a
complete stepper motor drive subsystem.
The raccomended operating ambient temperature
ranges is from 0 to 70 °C.
The PBL3717Ais supplied in a 12 + 2 + 2 lead Pow-
erdip package.
PIN CONNECTION (top view)
April 1993
1/11
1 page  
Figure 1 : Test and Application Circuit
PBL3717A
Figure 2 : Waveforms with MA Regulating (phase = 0)
5/11
5 Page 
PBL3717A
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for
the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its
use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifica-
tions mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information pre-
viously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore -
Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.
11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet PBL3717A.PDF ] | |
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