A3949_04 ALLEGRO [Allegro MicroSystems], A3949_04 Datasheet - Page 3

• Manufacturer Part Number: A3949_04
• Description: DMOS Full-Bridge Motor Driver
• Manufacturer: ALLEGRO [Allegro MicroSystems]

Output-On Resistance
Body Diode Forward Voltage
Motor Supply Current
Logic Input Voltage
PHASE, ENABLE, MODE
Logic Input Voltage
SLEEP
Logic Input Current
PHASE, MODE pins
Logic Input Current
ENABLE pin
Logic Input Current
SLEEP pin
Propagation Delay Times
Crossover Delay
Protection Circuitry
UVLO Enable Threshold
UVLO Hysteresis
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
ELECTRICAL CHARACTERISTICS
Characteristics
Symbol
R
V
V
V
V
I
I
I
I
I
I
t
ΔT
V
I
IN(1)
IN(0)
IN(1)
IN(0)
IN(1)
IN(0)
COD
DSON
t
T
IN(1)
IN(0)
IN(1)
IN(0)
BB
pd
F
J
J
at T
A
= 25°C, V
Source driver, I
Source driver, I
Sink driver, I
Sink driver, I
Source diode, I
Sink diode, I
f
Charge pump turned on; outputs disabled
Sleep mode
V
V
V
V
V
V
From PWM change to source or sink turn on
From PWM change to source or sink turn off
VBB rising
PWM
IN
IN
IN
IN
IN
IN
= 0.8 V
= 2.0 V
= 2.0 V
= 0.8 V
= 2.7 V
= 0.8 V
< 50 kHz
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
BB
Test Conditions
= 8 V to 36 V (unless otherwise noted)
OUT
OUT
F
= 2.8 A
OUT
OUT
F
= 2.8 A, T
= –2.8 A, T
= –2.8 A
= –2.8 A, T
= –2.8 A, T
DMOS Full-Bridge Motor Driver
J
= 25°C
J
= 125°C
J
J
= 25°C
= 125°C
Min.
2.0
2.7
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
< –2.0
Typ.
< 1.0
.576
600
100
500
250
170
.68
1.1
< 1
40
16
27
15
.4
.3
1
6
3
–
–
–
–
–
6
Max.
–20
100
.48
.43
1.3
1.3
8.5
4.5
0.8
0.8
10
20
40
50
10
–
–
–
–
–
–
–
–
–
–
–
A3949
Units
mA
mA
mV
μA
μA
μA
μA
μA
μA
μA
ns
ns
ns
°C
°C
Ω
Ω
Ω
Ω
V
V
V
V
V
V
V
3