3966
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
BB
= 30 V, V
CC
= 4.75 V to 5.5 V, V
REF
= 2 V,
V
S
= 0 V, 56 k
Ω
& 680 pF RC to Ground (unless noted otherwise) (cont.)
Limits
Characteristic
Control Logic
(continued)
PWM RC Frequency
PWM Propagation Delay Time
Cross-Over Dead Time
Propagation Delay Times
f
osc
t
PWM
t
codt
t
pd
C
T
= 680 pF, R
T
= 56 kΩ
Comparator Trip to Source OFF
Cycle Reset to Source ON
1 kΩ Load to 25 V
I
OUT
=
±650
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 Sink OFF
PHASE Change to Source ON
PHASE Change to Source OFF
22.9
—
—
0.2
—
—
—
—
—
—
—
—
—
—
Increasing V
CC
V
ENABLE 1
= V
ENABLE 2
= 0.8 V
V
ENABLE 1
= V
ENABLE 2
= 2.4 V
—
0.1
—
—
25.4
1.0
0.8
1.8
100
500
200
200
2200
200
2200
200
165
15
4.1
0.6
—
—
27.9
1.4
1.2
3.0
—
—
—
—
—
—
—
—
—
—
4.6
—
50
9.0
kHz
µs
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
°C
°C
V
V
mA
mA
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Thermal Shutdown Temp.
Thermal Shutdown Hysteresis
UVLO Enable Threshold
UVLO Hysteresis
Logic Supply Current
T
J
∆T
J
V
T(UVLO)+
V
T(UVLO)hys
I
CC(ON)
I
CC(OFF)
NOTES:1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.
4
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