3958
DMOS FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 50 V, VDD = 5.0 V, VSENSE = 0.5 V,
fPWM < 50 kHz (unless noted otherwise)
Limits
Characteristics
Symbol Test Conditions
Min. Typ. Max. Units
Output Drivers
Load Supply Voltage Range
VBB
Operating
20
0
–
–
–
–
–
–
–
–
–
–
–
50
50
V
V
During sleep mode
VOUT = VBB
Output Leakage Current
Output On Resistance
Body Diode Forward Voltage
Load Supply Current
IDSS
<1.0 20
<-1.0 -20
270 300
270 300
µA
µA
mΩ
mΩ
V
VOUT = 0 V
rDS(on) Source driver, IOUT = -2 A
Sink driver, IOUT = 2 A
VF
Source diode, IF = -2 A
Sink diode, IF = 2 A
fPWM < 50 kHz
1.2
1.2
4.0
2.0
–
1.6
1.6
7.0
5.0
20
V
IBB
mA
mA
µA
Charge pump on, outputs disabled
Sleep Mode
Control Logic
Logic Supply Voltage Range
Logic Input Voltage
VDD
VIN(1)
VIN(0)
IIN(1)
IIN(0)
IIN(1)
IIN(0)
fOSC
Operating
4.5
2.0
–
5.0
–
5.5
–
V
V
–
0.8
V
Logic Input Current
(all inputs except ENABLE)
VIN = 2.0 V
VIN = 0.8 V
VIN = 2.0 V
VIN = 0.8 V
Operating
–
<1.0 20
<-2.0 -20
µA
µA
µA
µA
MHz
%
–
ENABLE Input Current
–
40
–
100
0
–
OSC input frequency
OSC input duty cycle
OSC input hysteresis
Input Hysterisis
2.9
40
200
50
0.0
–
–
6.1
60
dcOSC Operating
–
–
–
Operating
–
400
100
2.6
0.5
5.0
mV
mV
V
All digital inputs except OSC
Operating
–
Reference Input Volt. Range
Reference Input Current
Comparator Input Offset Volt.
VREF
IREF
VIO
–
VREF = 2.5 V
–
µA
mV
VREF = 0 V
–
0
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ALLEGRO [ ALLEGRO MICROSYSTEMS ]
