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PBD3517-1 Datasheet, PDF (1/10 Pages) Ericsson – Stepper Motor Drive Circuit | |||
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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
PBD 3517/1
PB2
PB1
PBD 3517/1
PA2
PA1
16-pin plastic DIP
GND
16-pin SO (wide body)
1
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