A3952SW ALLEGRO [Allegro MicroSystems], A3952SW Datasheet - Page 2

• Manufacturer Part Number: A3952SW
• Description: FULL-BRIDGE PWM MOTOR DRIVER
• Manufacturer: ALLEGRO [Allegro MicroSystems]

3952
FULL-BRIDGE
PWM MOTOR DRIVER
10
8
6
4
2
0
25
GROUND
SUPPLY
ENABLE
PHASE
BRAKE
LOGIC
MODE
REF
50
'W' AMBIENT
'LB' AMBIENT
'B' & 'EB' AMBIENT
TEMPERATURE IN C
9R
R
75
V
CC
'B' , 'EB', & 'LB' TAB
1.5 V
100
Dwg. GP-007-1A
125
SLEEP &
STANDBY MODES
V
'W' TAB
CC
& TSD
UVLO
150
BLANKING
BRAKE ENABLE PHASE
H
H
H
H
H
H
L
L
X = Irrelevant
NOTES:
H
H
X
X
PWM LATCH
L
L
L
L
Q
1. Includes active pull-offs for power outputs.
2. Includes internal default V
R
S
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
Copyright © 1994 Allegro MicroSystems, Inc.
X
X
H
H
X
X
L
L
Z = High Impedance (source and sink both OFF)
MODE
+ –
H
H
H
H
L
L
L
L
V TH
+
–
sense
OUT
H
H
Z
Z
L
L
L
L
level for over-current protection.
A
'B', 'LB', & 'W'
PACKAGES
OUT
R T
Z
Z
L
L
H
H
L
L
B
SENSE
EMITTERS
'EB' ONLY
RC
DESCRIPTION
Sleep Mode
Standby, Note 1
Forward,
Fast-Decay Mode
Forward,
Slow-Decay Mode
Reverse,
Fast-Decay Mode
Reverse,
Slow-Decay Mode
Brake,
Fast-Decay Mode
Brake, No Current
Control, Note 2
C T
R S
Dwg. FP-036