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3953 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. 3953
Description  FULL-BRIDGE PWM MOTOR DRIVER
Download  15 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

3953 Datasheet(HTML) 3 Page - Allegro MicroSystems

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3953
FULL-BRIDGE
PWM MOTOR DRIVER
www.allegromicro.com
3
50
75
100
125
150
5
1
0
TEMPERATURE IN
°C
4
3
2
25
Dwg. GP-049-2A
R
= 6.0
°C/W
θJT
SUFFIX 'B', R
= 43
°C/W
θJA
SUFFIX 'LB', R
= 63
°C/W
θJA
ELECTRICAL CHARACTERISTICS at TJ = 25˚C, VBB = 5 V to 50 V, VCC = 3.0 V to 5.5 V
(unless otherwise noted.)
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Load Supply Voltage Range
VBB
Operating, IOUT =
±1.3 A, L = 3 mH
VCC
50
V
Output Leakage Current
ICEX
VOUT = VBB
<1.0
50
µA
VOUT = 0 V
<-1.0
-50
µA
Sense Current Offset
ISO
ISENSE - IOUT1, IOUT = 850 mA,
22
33
38
mA
VSENSE = 0 V, VCC = 5 V
Output Saturation Voltage
VCE(SAT)
VSENSE = 0.4 V, VCC = 3.0 V:
BRAKE = H
Source Driver, IOUT = -0.85 A
1.0
1.1
V
(Forward/Reverse Mode)
Source Driver, IOUT = -1.3 A
1.7
1.9
V
Sink Driver, IOUT = 0.85 A
0.4
0.5
V
Sink Driver, IOUT = 1.3 A
1.1
1.3
V
Output Saturation Voltage
VCE(SAT)
VSENSE = 0.4 V, VCC = 3.0 V:
BRAKE = L
Sink Driver, IOUT = 0.85 A
1.0
1.2
V
(Brake Mode)
Sink Driver, IOUT = 1.3 A
1.3
1.5
V
Clamp Diode Forward Voltage
VF
IF = 0.85 A
1.2
1.4
V
(Sink or Source)
IF = 1.3 A
1.4
1.6
V
Continued next page…
Power Outputs


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