a4950 Allegro MicroSystems, Inc., a4950 Datasheet - Page 2

• Manufacturer Part Number: a4950
• Description: Full-bridge Dmos Pwm Motor Driver
• Manufacturer: Allegro MicroSystems, Inc.

A4950
Selection Guide
Absolute Maximum Ratings
Thermal Characteristics
Package Thermal Resistance
*Additional thermal information available on the Allegro website.
Load Supply Voltage
Logic Input Voltage Range
V
Sense Voltage (LSS pin)
Motor Outputs Voltage
Output Current
Peak Output Current
Transient Output Current
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
REF
A4950ELJTR-T
A4950ELJ-T
VREF
GND
Input Voltage Range
IN2
IN1
Pin-out Diagram
Part Number
Characteristic
1
2
3
4
Characteristic
PAD
8
7
6
5
OUT2
LSS
OUT1
VBB
may require derating at maximum conditions, see application information
3000 pieces per 13-in. reel
98 pieces per tube
Symbol
Symbol
T
I
Terminal List Table
R
V
OUTPK
J
V
I
i
V
(max)
T
Number
V
OUT
OUT
V
T
θJA
REF
OUT
stg
BB
IN
A
S
Packing
1
2
3
4
5
6
7
8
–
On 2-layer PCB with 0.8 in
On 4-layer PCB based on JEDEC standard
Duty cycle = 100%
T
T
Temperature Range E
W
W
< 100 ms, duty cycle < 30%
< 500 ns
Name
VREF
OUT1
OUT2
GND
VBB
PAD
LSS
IN2
IN1
Full-Bridge DMOS PWM Motor Driver
Ground
Logic input 2
Logic input 1
Analog input
Load supply voltage
DMOS full bridge output 1
Power return – sense resistor connection
DMOS full bridge output 2
Exposed pad for enhanced thermal dissipation
Test Conditions*
Notes
2
. exposed 2-oz. copper each side
Function
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–0.5 to 0.5
–55 to 150
–40 to 85
–0.3 to 6
–0.3 to 6
–2 to 42
Rating
150
2.5
3.5
40
6
Value
62
35
Unit
°C
°C
°C
ºC/W
ºC/W
V
V
V
V
V
Unit
A
A
A
2