3959
DMOS FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
BB
= 50 V, V
DD
= 5.0 V, V
SENSE
= 0.5 V,
f
PWM
< 50 kHz (unless noted otherwise)
Limits
Characteristics
Output Drivers
Load Supply Voltage Range
Output Leakage Current
Output On Resistance
Crossover Delay
Body Diode Forward Voltage
Load Supply Current
V
F
I
BB
Source diode, I
F
= -3 A
Sink diode, I
F
= 3 A
f
PWM
< 50 kHz
Charge pump on, outputs disabled
Sleep Mode
Control Logic
Logic Supply Voltage Range
Logic Input Voltage
Logic Input Current
(all inputs except ENABLE)
ENABLE Input Current
Internal OSC frequency
Reference Input Volt. Range
Reference Input Current
Comparator Input Offset Volt.
V
DD
V
IN(1)
V
IN(0)
I
IN(1)
I
IN(0)
I
IN(1)
I
IN(0)
f
OSC
V
REF
I
REF
V
IO
V
IN
= 2.0 V
V
IN
= 0.8 V
V
IN
= 2.0 V
V
IN
= 0.8 V
R
OSC
shorted to GROUND
R
OSC
= 51 kΩ
Operating
V
REF
= V
DD
V
REF
= 0 V
Operating
4.5
2.0
–
–
–
–
–
3.25
3.65
0.0
–
–
5.0
–
–
<1.0
<-2.0
40
16
4.25
4.25
–
–
±5.0
5.5
–
0.8
20
-20
100
40
5.25
4.85
V
DD
±1.0
–
V
V
V
µA
µA
µA
µA
MHz
MHz
V
µA
mV
V
BB
I
DSS
r
DS(on)
Operating
During sleep mode
V
OUT
= V
BB
V
OUT
= 0 V
Source driver, I
OUT
= -3 A
Sink driver, I
OUT
= 3 A
9.5
0
–
–
–
–
300
–
–
–
–
–
–
–
<1.0
<-1.0
270
270
600
–
–
4.0
2.0
–
50
50
20
-20
300
300
1000
1.6
1.6
7.0
5.0
20
V
V
µA
µA
mΩ
mΩ
ns
V
V
mA
mA
µA
Symbol Test Conditions
Min. Typ. Max.
Units
Continued next page …
www.allegromicro.com
3
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
