L6228N STMicroelectronics, L6228N Datasheet - Page 21

IC DRIVER STEPPER MOTOR 24PWRDIP

L6228N

Manufacturer Part Number
L6228N
Description
IC DRIVER STEPPER MOTOR 24PWRDIP
Manufacturer
STMicroelectronics
Type
Driverr
Datasheet

Specifications of L6228N

Applications
Stepper Motor Driver
Number Of Outputs
1
Current - Output
1.4A
Voltage - Supply
8 V ~ 52 V
Operating Temperature
-25°C ~ 125°C
Mounting Type
Through Hole
Package / Case
24-DIP (0.300", 7.62mm)
Product
Stepper Motor Controllers / Drivers
Operating Supply Voltage
8 V to 52 V
Supply Current
1.4 A
Mounting Style
Through Hole
Motor Type
Stepper
No. Of Outputs
4
Output Current
3.55A
Output Voltage
52V
Supply Voltage Range
8V To 52V
Driver Case Style
DIP
No. Of Pins
24
Operating Temperature Range
-40°C To +150°C
Rohs Compliant
Yes
For Use With
497-6818 - EVAL BOARD FOR L6228Q
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-5350-5
L6228N

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Figure 26. IC Power Dissipation versus Output Current in WAVE Mode (full step one phase on).
Figure 27. IC Power Dissipation versus Output Current in MICROSTEPPING Mode.
Thermal Management
In most applications the power dissipation in the IC is the main factor that sets the maximum current that can
be delivered by the device in a safe operating condition. Therefore, it has to be taken into account very carefully.
Besides the available space on the PCB, the right package should be chosen considering the power dissipation.
Heat sinking can be achieved using copper on the PCB with proper area and thickness. Figures 28, 29 and 30
show the Junction-to-Ambient Thermal Resistance values for the PowerSO36, PowerDIP24 and SO24 packag-
es.
For instance, using a PowerSO package with copper slug soldered on a 1.5mm copper thickness FR4 board
with 6cm
ing methods for this package. Using a multi-layer board with vias to a ground plane, thermal impedance can be
reduced down to 15°C/W.
2
dissipating footprint (copper thickness of 35µm), the R
P
D
[W]
P
D
[W]
10
8
6
4
2
0
10
0
8
6
4
2
0
0 0.25 0.5 0.75 1 1.25 1.5
0.25 0.5 0.75 1
WAVE DRIVE
MICROSTEPPING
I
OUT
I
OUT
[A]
[A]
1.25 1.5
I
I
A
B
I
I
A
B
Test Conditions:
Supply Voltage = 24V
th(j-amb)
f
f
SW
SW
Test Conditions:
Supply Voltage = 24V
= 30 k Hz (slow decay)
= 50 k Hz (slow decay)
I
OUT
is about 35°C/W. Fig. 31 shows mount-
I
OUT
No PW M
f
SW
= 3 0 kHz (slow decay)
I
OUT
I
OUT
L6228
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