UDQ2943Z Allegro MicroSystems, Inc., UDQ2943Z Datasheet - Page 2

• Manufacturer Part Number: UDQ2943Z
• Description: High-current Half-bridge Motor Driver
• Manufacturer: Allegro MicroSystems, Inc.

2943
HIGH-CURRENT HALF-BRIDGE MOTOR DRIVER
20
15
10
5
0
25
AAVID 5071B + 5072B HEAT SINKS,
R
STAVER V1-5 HEAT SINK,
R
FREE AIR, R
SOURCE
JA
JA
A A
INPUT
INPUT
= 9.0 C/W
= 13 C/W
SINK
50
JA
2
5
= 65 C/W
TEMPERATURE IN C
75
2.1 V
MicroSystems, Inc.
100
R
JT
TM
TM
FUNCTIONAL BLOCK DIAGRAM
= 3.0 C/W
125
OVER-VOLT.
2.1 V
& TSD
Dwg. GP-014A
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
Copyright © 1986, 1994, Allegro MicroSystems, Inc.
150
6.35 V
H-TO-L DELAY
L-TO-H DELAY
Source Driver
Pin 2
High
High
Low
Low
LOGIC TRUTH TABLE
HIGH-CURRENT
SENSE
Sink Driver
GROUND
Pin 5
High
High
Low
Low
V
1
S
3
4
Dwg. FP-038
OUTPUT
Output
High Z
Pin 4
High
High
Low