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2918 Datasheet(Arkusz danych) 3 Page - Allegro MicroSystems

Numer części 2918
Szczegółowy opis  DUAL FULL-BRIDGE PWM MOTOR DRIVER
Pobierz  8 Pages
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Producent  ALLEGRO [Allegro MicroSystems]
Strona internetowa  http://www.allegromicro.com
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2918
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
www.allegromicro.com
ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 45 V, VCC = 4.75 V to 5.25 V,
VREF = 5.0 V (unless otherwise noted).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Output Drivers (OUTA or OUTB)
Motor Supply Range
VBB
10
45
V
Output Leakage Current
ICEX
VOUT = VBB
<1.0
50
µA
VOUT = 0
<-1.0
-50
µA
Output Sustaining Voltage
VCE(sus)
IOUT =
±1.5 A, L = 3.0 mH
45
V
Output Saturation Voltage
VCE(SAT)
Sink Driver, IOUT = +1.0 A
0.7
0.8
V
Sink Driver, IOUT = +1.5 A
0.9
1.1
V
Source Driver, IOUT = -1.0 A
1.8
2.0
V
Source Driver, IOUT = -1.5 A
1.9
2.2
V
Clamp Diode Leakage Current
IR
VR = 45 V
<1.0
50
µA
Clamp Diode Forward Voltage
VF
IF = 1.5 A
1.6
2.0
V
Driver Supply Current
IBB(ON)
Both Bridges ON, No Load
12
15
mA
IBB(OFF)
Both Bridges OFF
8.0
10
mA
Control Logic
Input Voltage
VIN(1)
All Inputs
2.4
V
VIN(0)
All Inputs
0.8
V
Input Current
IIN(1)
VIN = 2.4 V
<1.0
20
µA
IIN(0)
VIN = 0.8 V
-3.0
-200
µA
Reference Voltage Range
VREF
Operating
1.5
VCC
V
Current Limit Threshold
VREF/VSENSE
At Trip Point
9.5
10
10.5
Thermal Shutdown Temp.
TJ
170
°C
Total Logic Supply Current
ICC(ON)
VEN = 0.8 V, No Load
105
140
mA
ICC(OFF)
VEN = 2.4 V, No Load
10
12
mA
Negative current is defined as coming out of (sourcing) the specified device pin.
Typical Data is for design information only.




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