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3968 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. 3968
Description  DUAL FULL-BRIDGE PWM MOTOR DRIVER WITH BRAKE
Download  10 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

3968 Datasheet(HTML) 3 Page - Allegro MicroSystems

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3968
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
WITH BRAKE
www.allegromicro.com
Load Supply Voltage Range
V
BB
Operating, I
OUT = ±650 mA, L = 3 mH
V
CC
—30
V
Output Leakage Current
I
CEX
V
OUT = 30 V
<1.0
50
µA
V
OUT = 0 V
<-1.0
-50
µA
Output Saturation Voltage
V
CE(SAT)
Source Driver, I
OUT = -400 mA
1.7
2.0
V
Source Driver, I
OUT = -650 mA
1.8
2.1
V
Sink Driver, I
OUT = +400 mA, VS = 0.5 V
0.3
0.5
V
Sink Driver, I
OUT = +650 mA, VS = 0.5 V
0.7
1.3
V
Clamp Diode Forward Voltage
V
F
I
F = 400 mA
1.1
1.4
V
I
F = 650 mA
1.4
1.6
V
Motor Supply Current
I
BB(ON)
Both bridges ON (forward or reverse)
3.0
5.0
mA
(No Load)
I
BB(OFF)
All INPUTs = 2.4 V
<1.0
200
µA
ELECTRICAL CHARACTERISTICS at T
A = +25°C, VBB = 30 V, VCC = 4.75 V to 5.5 V, VREF = 2 V,
V
S = 0 V, 56 k& 680 pF RC to Ground (unless noted otherwise)
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Output Drivers
Logic Supply Voltage Range
V
CC
Operating4.75
5.50
V
Logic Input Voltage
V
IN(1)
2.4
V
V
IN(0)
0.8
V
Logic Input Current
I
IN(1)
V
IN = 2.4 V
<1.0
20
µA
I
IN(0)
V
IN = 0.8 V
<-20
-200
µA
Reference Input Volt. Range
V
REF
Operating0.1
2.0
V
Reference Input Current
I
REF
-2.5
0
1.0
µA
Reference Divider Ratio
V
REF/VTRIP
3.8
4.0
4.2
Current-Sense Comparator
V
IO
V
REF = 0.1 V
-6.0
0
6.0
mV
Input Offset Voltage
Current-Sense Comparator
V
S
Operating-0.3
1.0
V
Input Voltage Range
Sense-Current Offset
I
SO
I
S – IOUT, 50 mA ≤ IOUT ≤ 650 mA
12
18
24
mA
Control Logic
NOTES:1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.


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