A4954
Dual Full-Bridge DMOS
PWM Motor Driver
ELECTRICAL CHARACTERISTICS Valid at TJ = 25°C, unless otherwise specified
Characteristics
Symbol
Test Conditions
General
Load Supply Voltage Range
RDS(on) Sink + Source Total
Load Supply Current
VBB
RDS(on)
IBB
IOUT = |1.5 A|, TJ = 25°C
IOUT = |1.5 A|, TJ = 125°C
fPWM < 30 kHz
Low Power Standby mode
Body Diode Forward Voltage
Logic Inputs
Vf
Source diode, If = –1.5 A
Sink diode, If = 1.5 A
Logic Input Voltage Range
Logic Input Current
Logic Input Pull-Down Resistance
Input Hysteresis
Timing
VIN(1)
VIN(0)
VIN(STANDBY) Low Power Standby mode
IIN(1)
VIN = 2.0 V
IIN(0)
VIN = 0.8 V
RRR LOGIC(PD) VIN = 0 V = IN1 = IN2 = IN3 = IN4
VHYS
Crossover Delay
VREF Input Voltage Range
Current Gain
Blank Time
Constant Off-time
Standby Timer
Power-Up Delay
Protection Circuits
tCOD
VREF
AV
tBLANK
toff
tst
tpu
VREF / ISS , VREF = 5 V
VREF / ISS , VREF = 2.5 V
VREF / ISS , VREF = 1 V
IN1 = IN2 = IN3 = IN4 < VIN(STANDBY)
UVLO Enable Threshold
UVLO Hysteresis
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
VBBUVLO VBB increasing
VBBUVLOhys
TJTSD Temperature increasing
TTSDhys Recovery = TJTSD – TTSDhys
Min.
Typ.
Max.
Unit
8
–
40
V
–
0.8
1.12
Ω
–
1.28
1.8
Ω
–
10
–
mA
–
–
10
μA
–
–
1.5
V
–
–
1.5
V
2.0
–
–
V
–
–
0.8
V
–
–
0.4
V
–
40
100
μA
–
16
40
μA
–
50
–
kΩ
–
250
550
mV
50
–
500
ns
0
–
5
V
9.5
–
10.5
V/V
9.0
–
10.0
V/V
8.0
–
10.0
V/V
2
3
4
μs
16
25
34
μs
–
1
1.5
ms
–
–
30
μs
7
7.5
7.95
V
–
500
–
mV
–
160
–
°C
–
15
–
°C
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com