3959
DMOS FULL-BRIDGE
PWM MOTOR DRIVER
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C, V
BB
= 50 V, V
DD
= 5.0 V, V
SENSE
= 0.5 V,
f
PWM
< 50 kHz (unless noted otherwise), continued.
Limits
Characteristics
Control Logic
Reference Divider Ratio
G
m
Error
(Note 3)
Propagation Delay Times
t
pd
–
E
Gm
V
REF
= V
DD
V
REF
= 0.5 V
0.5 E
in
to 0.9 E
out
:
PWM change to source on
PWM change to source off
PWM change to sink on
PWM change to sink off
–
–
–
600
50
600
50
–
–
Increasing V
DD
f
PWM
< 50 kHz
Sleep Mode
3.90
0.05
–
–
10
–
–
750
150
750
100
165
15
4.2
0.10
6.0
–
–
±4.0
±14
1200
350
1200
150
–
–
4.45
–
10
2.0
–
%
%
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
UVLO
∆UVLO
I
DD
NOTES: 1. Typical Data is for design information only.
2. Negative current is defined as coming out of (sourcing) the specified device terminal.
3. G
m
error = ([V
REF
/10] – V
SENSE
)/(V
REF
/10) where
V
SENSE
= I
TRIP
•R
S
.
4
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
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