
CHANNEL A AND CHANNEL B (UNIPOLARMOTORS)
Symbol
R
DSONL
R
DSONH
Parameter
Test Conditions
Min.
Typ.
Max.
1.2
1.2
Unit
Low Side DMOS ON Res.
High Side DMOS ON Res.
I
DS
= 0.7A
I
DS
= 0.7A
I
DSSL
Low Side DMOS Leakage
Current
High Side DMOS Leakage
Current
Voltage reference to the
Comparator
V
DS
= 60V; output OFF
2
mA
I
DSSH
V
P
= 30V; V
O
= 0V
-1.5
mA
V
REF
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
100
220
340
465
125
250
375
500
150
280
410
535
1
mV
mV
mV
mV
μ
s
T
d
Turn OFF Delay on HIGH
Side DMOS after the
Sensing Current Reach the
Threshold Value
Max Chopping Frequency
(note 2)
f
max
40
KHz
CHANNEL C (DC MOTORS)
(see Fig. 5)
Symbol
f
osc
DC
I
b2
V
low
R
DSONH
R
DSONL
I
LH
I
LL
V
fddc
Parameter
Test Conditions
Min.
17
72
-1
Typ.
22
75
Max.
28
81
Unit
KHz
%
μ
A
V
mA
mA
V
Oscillator Frequency
Duty Cycle
Comparator Input Bias
Open Drain Output
High Side DMOS ON Res.
Low Side DMOS ON Res.
HSD MOS Leakage Current
LSD MOSLeakage Current
Forward Diode DC Voltage
(DMOS Diode)
Max Chopping Frequency
Voltage on pin Boot1
Leakage Current on pin Boot1
Cosc = 3.3nF; V1 = 2/3V
S
V2 = 1/2V
S
V2 = 200mV
I = 5mA
I
DS
= 0.7A
I
DS
= 0.7A
V
P
= 30V; V
O
= 0V
V
O
= 30V; V
sense
= 0V
I
fdcc
= 0.7A
0.2
0.4
1.2
1.7
-1
-1.5
1.4
2
f
max
V
boot
I
L boot
40
KHz
V
μ
A
V
p
+7
V
bott
= V
p
+12V; V
p
= 26.5V
200
LOGIC LEVEL
Symbol
V
inL
Parameter
Test Conditions
Min.
-0.3
Typ.
Max.
1.35
Unit
V
Input Low Voltage
V
inH
I
inL
I
inH
Input High Voltage
Input Low Current
Input High Current
3.15
-10
V
S
+0.3
V
μ
A
μ
A
V
in
= V
inL
V
in
= V
inH
10
ELECTRICAL CHARACTERISTICS
(T
j
= 25
°
C, V
s
= 5V, V
p
= 24V unless othewise specified)
Symbol
V
p
Parameter
Test Conditions
Min.
9
Typ.
Max.
26.5
Unit
V
Power Supply Voltage
I
p
Quiescent Power Supply
Current
Logic Supply Voltage
Quiescent Logic Supply
Current
(note 1)
7
mA
V
s
I
s
4.5
5.5
20
V
(note 1)
mA
L6285
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