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3966 Datasheet(PDF) 4 Page - Allegro MicroSystems

Part No. 3966
Description  DUAL FULL-BRIDGE PWM MOTOR DRIVER
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

3966 Datasheet(HTML) 4 Page - Allegro MicroSystems

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3966
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
4
PWM RC Frequency
fosc
CT = 680 pF, RT = 56 kΩ
22.9
25.4
27.9
kHz
PWM Propagation Delay Time
tPWM
Comparator Trip to Source OFF
1.0
1.4
µs
Cycle Reset to Source ON
0.8
1.2
µs
Cross-Over Dead Time
tcodt
1 kΩ
0
.
3
8
.
1
2
.
0
V
5
2
o
t
d
a
o
L
µs
Propagation Delay Times
tpd
IOUT = ±650 mA, 50% to 90%:
ENABLE ON to Source ON
100
ns
ENABLE OFF to Source OFF
500
ns
ENABLE ON to Sink ON
200
ns
ENABLE OFF to Sink OFF
200
ns
PHASE Change to Sink ON
2200
ns
PHASE Change to Sink OFF
200
ns
PHASE Change to Source ON
2200
ns
PHASE Change to Source OFF
200
ns
Thermal Shutdown Temp.
TJ
165
°C
Thermal Shutdown Hysteresis
∆TJ
15
°C
UVLO Enable Threshold
VT(UVLO)+
Increasing VCC
4.1
4.6
V
UVLO Hysteresis
VT(UVLO)hys
0.1
0.6
V
Logic Supply Current
ICC(ON)
VENABLE 1 = VENABLE 2 = 0.8 V
50
mA
ICC(OFF)
VENABLE 1 = VENABLE 2 = 2.4 V
9.0
mA
Limits
s
ti
n
U
.
x
a
M
.
p
y
T
.
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i
M
s
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C
ELECTRICAL CHARACTERISTICS at TA = +25°C, VBB = 30 V, VCC = 4.75 V to 5.5 V, VREF = 2 V,
VS = 0 V, 56 k& 680 pF RC to Ground (unless noted otherwise) (cont.)
Control Logic (continued)
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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