A3908 Allegro MicroSystems, A3908 Datasheet - Page 4

• Manufacturer Part Number: A3908
• Description: Low Voltage DC Motor Driver
• Manufacturer: Allegro MicroSystems

A3908
ELECTRICAL CHARACTERISTICS at T
Supply Current
UVLO Enable Threshold
UVLO Hysteresis
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Logic Input Low Level
Logic Input High Level
Input Hysteresis
Logic Input Current
Output Driver
Sink Driver Output Resistance
Source Driver On Resistance
Bandgap Reference
V
THERMAL CHARACTERISTICS
Package Thermal Resistance
*
Additional thermal information is available on the Allegro Web site.
OUT
Accuracy (V
Characteristics
Characteristics
OUTA
–V
OUTB
)
*
Symbol
A
V
V
R
I
=25°C, and V
T
T
DDUVLO
DDSTB
V
V
VBG
UVHYS
R
DS(on)
V
I
JTSD
JHYS
V
I
DD
HYS
OUT
IN
DS
IH
IL
Symbol
R
θJA
Standby mode
V
Temperature increasing.
Recovery = T
V
V
V
V
V
V
V
V
DD
IN
DD
DD
DD
DD
SET
SET
SET
Measured on 4-layer board based on JEDEC
standard
DD
= 0 to 5 V
rising
= 5 V, I
= 3 V, I
= 5 V, I
= 3 V, I
= 1.2 V
= 825 mV
= 500 mV
Test Conditions
= 3 to 5.5 V, unless otherwise noted
OUT
OUT
OUT
OUT
JTSD
= 500 mA
= 500 mA
= 500 mA
= 500 mA
– T
Test Conditions
JHYS
Low Voltage DC Motor Driver
V
DD
1.235
4.608
3.135
Min.
1.84
–1
x 55%
–
–
–
–
–
–
–
–
–
–
–
–
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
V
DD
1.285
Typ.
0.65
120
165
0.5
0.6
0.8
0.6
4.8
3.3
15
–
–
–
–
0
2
x 7%
www.DataSheet4U.com
V
Rating
DD
Max.
1.335
4.992
3.465
49
2.16
500
2.6
x 20%
2
–
–
–
–
–
1
–
–
–
–
Units
mA
mV
mV
nA
°C
°C
μA
°C/W
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
Unit
4
4