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PDF PBD35171 Data sheet ( Hoja de datos )

Número de pieza PBD35171
Descripción Stepper Motor Drive Circuit
Fabricantes Ericsson 
Logotipo Ericsson Logotipo



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No Preview Available ! PBD35171 Hoja de datos, Descripción, Manual

February 1999
PBD 3517/1
Stepper Motor
Drive Circuit
Description
PBD 3517/1 is a bipolar, monolithic, integrated circuit, intended to drive a stepper motor
in a unipolar, bilevel way.
One PBD 3517/1 and a minimum of external components form a complete control
and drive unit for LS-TTL- or microprocessor-controlled stepper motor system for
currents up to 500mA. The driver is suited for applications requiring least-posssible RFI.
Motor performance can be increased by operating in a bilevel drive mode. This
means that a high voltage pulse is applied to the motor winding at the beginning of a
step, in order to give a rapid rise of current.
Key Features
• Complete driver and phase logic on
chip
• 2 x 350 mA continuous-output current
• Half- and full-step mode generation
• LS-TTL-compatible inputs
• Bilevel drive mode for high step rates
• Voltage-doubling drive possibilities
• Half-step position-indication output
• Minimal RFI
• 16-pin plastic DIP package or 16 pin
small outline wide body
PBD 3517/1
RC Mono
F-F
VCC
PQR
STEP
DIR
HSM
INH
OA
OB
Phase PA
Logic
PB
Figure 1. Block diagram.
VSS
LA
LB
PB2
PB1
PA2
PA1
16-pin plastic DIP
GND 16-pin SO (wide body)
1

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PBD35171 pdf
PBD 3517/1
PB2 1
16 VCC
PB1 2
15 VSS
GND 3
14 LB
PA1 4 PBD 13 LA
3517/1N
PA2 5
12 RC
DIR 6
11 INH
STEP 7
10 HSM
ØB 8
9 ØA
PB2 1
16 VCC
PB1 2
15 VSS
GND 3
PA1 4
PA2 5
PBD
14 LB
3517/1SO
13
12
LA
RC
DIR 6
11 INH
STEP 7
10 HSM
ØB 8
9 ØA
Figure 13. Pin configuration.
Pin Description
DIP SO-pack. Symbol Description
11
22
33
44
55
66
PB2
PB1
GND
P
A1
PA2
DIR
Phase output 2, phase B. Open collector output capable of sinking max 500 mA.
Phase output 1, phase B. Open collector output capable of sinking max 500 mA.
Ground and negative supply for both VCC and VSS.
Phase output 1, phase A.
Phase output 2, phase A.
Direction input. Determines in which rotational direction steps will be taken.
77
STEP Stepping pulse. One step is generated for each negative edge of the step signal.
88
ØB Zero current half step position indication output for phase B.
99
ØA Zero current half step position indication output for phase A.
10 10
HSM Half-step mode. Determines whether the motor will be operated in half or full-step
mot. When pulled low, one step pulse will correspond to a half step of the motor.
11 11
INH A high level on the inhibit input turns all phase output off.
12 12
13 13
RC Bilevel pulse timing pin. Pulse time is approximately ton = 0.55 • RT • CT
LA Second level (bilevel) output, phase A.
14 14
LB Second level (bilevel) output, Phase B.
15 15
16 16
VSS Second level supply voltage, +10 to +40 V.
VCC Logic supply voltage, nominally +5 V.
5

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