![](http://datasheet.mmic.net.cn/370000/L6285_datasheet_16703416/L6285_2.png)
simple PWMopen loop. The 3 motors are control-
led by the micro through 4 latches of 4 bit each.
The loading of these registers is in serial mode.
The I.C. operates at 5V supply for the logic and at
PINCONNECTION
(Top view)
24V supply for the power stages. The packages
are SDIP42 and PLCC44 with 6 pins devoted to
ground and to sink out the heat produced by
power dissipation.
ABSOLUTE MAXIMUM RATINGS
Symbol
V
P
V
S
V
in
I
LOW
I
HIGH
I
pLOW
I
pHIGH
V
bout
Parameter
Value
30
7
Unit
V
V
V
A
A
A
A
V
Power Supply Voltage
Logic Supply Voltage
Logic Input Voltage
Low Side DMOS max DC Current
High Side DMOS max DC Current
Low Side DMOS max Peak Current (1
μ
s On; 50
μ
s OFF)
High Side DMOS max Peak Current(1
μ
s On; 50
μ
s OFF)
Max Output Voltage of Stepper Motor Driver (transient
rcirculation)
Max Voltage ON Vsense (CHA/CHB)
Max Voltage ON V
sense
(CHC)
Max DC Current of Forward Diode(DMOS Source Drain Diode)
Max Peak Current of Forward Diode (DMOS Source Drain
Diode) (1
μ
s On;50
μ
s OFF)
Total Power Dissipation (Tpins = 90
°
C)
With minimized dissipating copper area (T
amb
= 70
°
C)
Operating Temperature Range
Storage Temperature Range
-0.3 to V
S
+ 0.3
1
1
2
2
60
V
sense
1;2
V
sense
3
Ι
fdDC
Ι
fdpk
-1 to 2
-1 to 2
1
2
V
V
A
A
P
tot
5
1.6
W
W
°
C
°
C
T
op
T
stg
0 to 150
-40 to 150
THERMAL DATA (PLCC44)
Symbol
R
th j-pins
R
th j-amb
Description
SDIP42
15
48
PLCC44
12
50
Unit
°
C/W
°
C/W
Thermal Resistance Junction-pins
Thermal Resistance Junction-ambient
Max.
Max.
1
2
3
5
6
4
7
8
9
10
12
11
13
14
15
16
17
39
38
37
36
34
35
33
32
31
30
29
40
41
42
44 43
23
22
21
19
18
20
28
27
26
24 25
S
O
C
C
P
V
P
P
C
V
P
O
C
PWGND
OUT1A
S1,2A
OUT2A
OUT3A
CLAMPA
S3,4A
OUT4A
BOOT1
BOOT3
GND
PWGND
OUT1B
S1,2B
OUT2B
OUT3B
CLAMPB
S3,4B
OUT4B
VLOW
COSC
GND
V
S
N
S
S
B
S
V
O
A
N
A
D94IN067
PWGND
OUT1A
S1,2A
OUT2A
CLAMPA
S3,4A
OUT3A
OUT4A
BOOT1
1
3
2
4
5
6
7
8
9
VLOW
COSC
OUT4B
S3,4B
CLAMPB
OUT3B
OUT2B
S1,2B
OUT1B
PWGND
37
36
35
34
33
31
32
30
29
D94IN060A
10
11
12
13
14
42
41
40
39
38
OUT2C
COM1,2A
VP
COM3,4A
N.C.
COM3,4B
VP
COM1,2B
OUT1C
S1,2C
BOOT3
GND
N.C.
SID
BOOT2
SCK
STB
15
16
VS
A0TH
A1TH
V2
OSC RESET
GND
28
27
26
24
25
23
22
17
18
19
20
21
PLCC44
SDIP42
L6285
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