A3995 Allegro MicroSystems, A3995 Datasheet - Page 4

• Manufacturer Part Number: A3995
• Description: DMOS Dual Full Bridge PWM Motor Driver
• Manufacturer: Allegro MicroSystems

A3995
ELECTRICAL CHARACTERISTICS
Load Supply Voltage Range
Logic Supply Voltage Range
VDD Supply Current
Output On Resistance
V
Output Leakage
VBB Supply Current
Control Logic
Logic Input Voltage
Logic Input Current
Input Hysteresis
Propagation Delay Times
Crossover Delay
Blank Time
VREFx Pin Input Voltage Range
VREFx Pin Reference Input Current
Protection Circuits
VBB UVLO Threshold
VBB Hysteresis
VDD UVLO Threshold
VDD Hysteresis
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
1

vidual units, within the specified maximum and minimum limits.
3
DC Control Logic
* To prevent reversal of current during fast decay SR – the outputs will go to the high impedance state as the current gets near zero.
For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
Typical data are for initial design estimations only, and assume optimum manufacturing and application conditions. Performance may vary for indi-
V
f
, Outputs
ERR
PHASE
1
1
0
0
X
1
0
= [(V
REF
Characteristics
/3) – V
ENABLE
1
1
1
1
0
0
0
SENSE
] / (V
MODE
REF
1
0
1
0
1
0
0
/3).
1
, valid at T
OUTA
V
V
V
V
Symbol
UV(VDD)hys
T
H
H
H
UV(VBB)hys
L
L
L
L
R
t
V
UV(VBB)
UV(VDD)
T
JTSDhys
V
V
BLANK
t
V
I
V
I
V
DS(on)
A
I
COD
DSS
I
REF
JTSD
IN(1)
IN(0)
I
t
REFx
DMOS Dual Full Bridge PWM Motor Driver
DD
BB
pd
DD
IN
hys
BB
= 25 °C, V
OUTB
H
H
H
L
L
L
L
Operating
Operating
Source driver, I
Sink driver, I
I
Outputs, V
I
DC = 50%
V
PWM change to source on
PWM change to source off
PWM change to sink on
PWM change to sink off
Operating
V
V
V
OUT
OUT
BB
IN
REF
BB
DD
= 0 to 5 V
rising
= 36 V, unless otherwise noted
= 0 mA, outputs on, PWM = 50 kHz,
rising
= 1. A
= 1.5
Forward (slow decay SR)
Forward (fast decay SR)
Reverse (slow decay SR)
Reverse (fast decay SR)
Brake (slow decay SR)
Fast decay SR*
Fast decay SR*
OUT
OUT
Test Conditions
= 0 to V
OUT
= 1. A, T J = 5°C
= –1. A, T J = 5°C
BB
Function
0.7×V
Min.
.65
–0
–0
150
350
350
300
400
155
8.0
3.0
.5
0.0
7.3
115 Northeast Cutoff, Box 15036
35
35
75
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
–
–
–
–
–
–
–
–
DD
Typ.
<1.0
350
350
300
550
550
45
500
105
165
3.
7.6
.8
15
–
–
7
–
–
–
–
–
–
–
–
–

0.3×V
Max.
1000
1000
1000
.95
450
450
500
300
50
600
15
175
5.5
1.
1.5
7.9
36
10
0
0
±1
8
–
4
–
DD
Units
mΩ
mΩ
mV
mV
mV
mA
mA
µA
µA
μA
ns
ns
ns
ns
ns
µs
°C
°C
V
V
V
V
V
V
V
V
4