2919
DUAL FULL-BRIDGE
MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, TJ ≤ 150°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
ICEX
Operating
10
—
—
< 1.0
<-1.0
—
45
50
V
µA
µA
V
Output Leakage Current
VOUT = VBB
VOUT = 0
—
-50
—
Output Sustaining Voltage
Output Saturation Voltage
VCE(sus)
VCE(SAT)
IOUT = ±750 mA, L = 3.0 mH
Sink Driver, IOUT = +500 mA
Sink Driver, IOUT = +750 mA
Source Driver, IOUT = -500 mA
Source Driver, IOUT = -750 mA
VR = 45 V
45 + VF
—
0.4
0.6
1.2
1.2
1.5
50
V
—
1.0
V
—
1.0
V
—
1.3
V
Clamp Diode Leakage Current
Clamp Diode Forward Voltage
Driver Supply Current
IR
—
< 1.0
1.6
µA
V
VF
IF = 750 mA
—
2.0
25
IBB(ON)
IBB(OFF)
Both Bridges ON, No Load
Both Bridges OFF
—
20
mA
mA
—
5.0
10
Control Logic
Input Voltage
VIN(1)
VIN(0)
IIN(1)
All inputs
All inputs
VIN = 2.4 V
VIN = 0.8 V
2.4
—
—
—
—
0.8
V
V
Input Current
—
<1.0
- 3.0
—
20
µA
µA
V
—
-200
7.5
Reference Voltage Range
VREF
1.0
9.5
13.5
Current Limit Threshold
(at trip point)
VREF/VSENSE
I0 = I1 = 0.8 V, VREF = 1.0 V to 7.5 V
10
10.5
16.5
—
—
I0 = 2.4 V, I1 = 0.8 V,
VREF = 1.5 V to 7.5 V
15
I0 = 0.8 V, I1 = 2.4 V,
20.7
24.4
28.0
—
VREF = 1.5 V to 7.5 V
Thermal Shutdown Temperature
Total Logic Supply Current
TJ
ICC(ON)
—
—
170
40
—
50
°C
mA
mA
µA
µs
I0 = I1 = 0.8 V, No Load
ICC(OFF)
IREF1 + IREF2
toff
I0 = I1 = 2.4 V, No Load
—
10
12
Total Reference Current
Fixed Off-Time
VREF1 = VREF2 = 7.5 V, I0 = I1 = 2.4 V
RT = 56 kΩ, CT = 820 pF
140
—
185
46
250
—
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
