a4985 Allegro MicroSystems, Inc., a4985 Datasheet - Page 3
a4985
Manufacturer Part Number
a4985
Description
Dmos Microstepping Driver With Translator And Overcurrent Protection
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
1.A4985.pdf
(21 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
a4985SESTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
Part Number:
a4985SLPTR-T
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
A4985
ENABLE
RESET
SLEEP
STEP
VDD
REF
MS1
MS2
DIR
V
Translator
REF
DAC
DAC
Regulator
Current
VREG
Mixed Decay
Mixed Decay
PWM Latch
PWM Latch
Blanking
Blanking
Control
Logic
0.22 F
DMOS Microstepping Driver with Translator
Functional Block Diagram
OSC
ROSC
Drive
Gate
OCP
OCP
DMOS Full Bridge
DMOS Full Bridge
CP1
Charge
Pump
and Overcurrent Protection
0.1 F
CP2
VCP
VBB1
VBB2
OUT1A
OUT1B
SENSE1
OUT2A
OUT2B
SENSE2
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
R
R
S1
S2
0.1 F
3