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2927 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. 2927
Description  DUAL FULL-BRIDGE PWM MOTOR DRIVER
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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2927
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at T
A
= +25
°C, V
BB
= 50 V, V
CC
= 5.0 V, V
REF
= 5.0 V (unless
otherwise noted).
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Output Drivers (OUT
A
or OUT
B
)
Motor Supply Range
V
BB
I
OUT = ±1.5 A, L = 15 mH
10
50
V
Output Leakage Current
I
CEX
V
OUT
= V
BB
<1.0
5.0
µA
V
OUT
= 0
<-1.0
-5.0
µA
Output Saturation Voltage
V
CE(SAT)
Sink Driver, I
OUT
= +1.0 A*
0.5
0.7
V
Sink Driver, I
OUT
= +1.5 A*
0.8
0.9
V
Source Driver, I
OUT
= -1.0 A*
1.8
1.9
V
Source Driver, I
OUT
= -1.5 A*
1.9
2.0
V
Flyback Diode Forward Volt.
V
F
I
F
= 1.5 A
1.6
2.0
V
Driver Supply Current
I
BB(ON)
Both Bridges ON, No Load
6.5
9.0
mA
I
BB(OFF)
Both Bridges OFF
4.0
4.0
mA
Control Logic
Input Voltage
V
IN(1)
All Inputs
2.4
V
V
IN(0)
All Inputs
0.8
V
Input Current
I
IN(1)
V
IN
= 2.4 V
<1.0
20
µA
I
IN(0)
V
IN
= 0.8 V
-3.0
-200
µA
Reference Voltage Range
V
REF
Operating
1.5
7.5
V
Current Limit Threshold
V
REF
/V
SENSE
I
0
= I
1
= 0.8 V
9.5
10
10.5
I
0
= 2.4 V, I
1
= 0.8 V
13.5
15
16.5
I
0
= 0.8 V, I
1
= 2.4 V
25.5
30
34.5
Thermal Shutdown Temp.
T
J
170
°C
Total Logic Supply Current
I
CC(ON)
I
0
= I
1
= V
EN
= 0.8 V, No Load
90
105
mA
I
CC(OFF)
I
0
= I
1 = 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.
* Pulse test (<10 ms).
Limits
(at trip point)




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