3964
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
BB
= 30 V, V
CC
= 4.75 V to 5.25 V, V
SENSE
= 0
V, 30 k
Ω
& 1000 pF RC to Ground (unless noted otherwise) (cont.)
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Control Logic
Logic Supply Voltage Range
Logic Input Voltage
V
CC
V
IN(1)
V
IN(0)
Logic Input Current
I
IN(1)
I
IN(0)
Reference Output Voltage
Reference Output Current
Ref. Input Offset Current
Comparator Input Offset Volt.
Comparator Input Volt. Range
PWM RC Fixed Off-time
PWM Propagation Delay Time
PWM Minimum On Time
Propagation Delay Times
V
REF(OUT)
I
REF(OUT)
I
OS
V
IO
V
REF
t
OFF RC
t
PWM
t
ON(min)
t
pd
V
IN
= 2.4 V
V
IN
= 0.8 V
V
CC
= 5.0 V, I
REF(OUT)
= 90 to 900
µA
3 kΩ
≤
R
D
= R
A
+ R
B
≤
15 kΩ
V
REF(IN)
= 1 V
V
REF(IN)
= 0 V
Operating
C
T
= 1000 pF, R
T
= 30 kΩ
Comparator Trip to Source OFF
C
T
= 1000 pF, R
T
≥
15 kΩ, V
CC
= 5 V
I
OUT
=
±800
mA, 50% to 90%:
ENABLE ON to Source ON
ENABLE OFF to Source OFF
ENABLE ON to Sink ON
ENABLE OFF to Sink OFF
PHASE Change to Sink ON
PHASE Change to Source ON
PHASE Change to Sink OFF
PHASE Change to Source OFF
Operating
4.75
2.4
—
—
—
2.45
150
-2.5
-6.0
-0.3
27
—
—
—
—
—
—
—
—
—
—
—
—
Decreasing V
CC
UVLO Enable Volt. - UVLO Disable Volt.
Increasing V
CC
I
CC(ON)
I
CC(OFF)
Logic Supply Current
Temperature Coefficient
∆I
CC(ON)
V
ENABLE 1
= V
ENABLE 2
= 0.8 V
V
ENABLE 1
= V
ENABLE 2
= 2.4 V
V
ENABLE 1
= V
ENABLE 2
= 0.8 V
4.20
0.075
4.375
—
—
—
—
—
—
<1.0
<-2.0
2.50
—
0
0
—
30
1.2
2.5
3.2
1.2
3.2
0.7
3.2
3.2
0.7
1.2
165
15
4.40
0.125
4.525
60
13
0.18
5.25
—
0.8
20
-200
2.55
900
1.0
6.0
1.0
33
2.0
3.6
—
—
—
—
—
—
—
—
—
—
4.65
0.175
4.725
85
17
—
V
V
V
µA
µA
V
µA
µA
mV
V
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
°C
°C
V
V
V
mA
mA
mA/°C
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
UVLO Disable Threshold
UVLO Hysteresis
UVLO Enable Threshold
Logic Supply Current
T
J
∆T
J
NOTES: 1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
