L6228N STMicroelectronics, L6228N Datasheet - Page 12
![IC DRIVER STEPPER MOTOR 24PWRDIP](/photos/7/45/74508/l6228n_sml.jpg)
L6228N
Manufacturer Part Number
L6228N
Description
IC DRIVER STEPPER MOTOR 24PWRDIP
Manufacturer
STMicroelectronics
Type
Driverr
Datasheet
1.L6228DTR.pdf
(26 pages)
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
L6228N
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L6228N
Manufacturer:
STMicroelectronics
Quantity:
740
Part Number:
L6228N
Manufacturer:
ST
Quantity:
20 000
L6228
Figure 11. Output Current Regulation Waveforms
Figure 12 shows the magnitude of the Off Time t
calculated from the equations:
where R
Therefore:
These values allow a sufficient range of t
The capacitor value chosen for C
Rise Time t
monostable is triggered. Therefore, the on time t
be bigger than t
can not be smaller than the minimum on time t
12/26
R
V
V
SENSE
I
SENSE
t
t
20K
0.47nF
t
t
t
OUT
RCFALL
OFF
DT
OFF(MIN)
OFF(MAX)
V
REF
2.5V
OFF
V
ON
5V
REF
OFF
0
RC
= 1µs (typical value)
= t
RCRISE
and C
RCFALL
SYNCHRONOUS OR QUASI
SYNCHRONOUS RECTIFICATION
= 0.6 · R
R
D01IN1334
= 6.6µs
C
RCRISE
OFF
= 6ms
OFF
OFF
will only be an issue if the capacitor is not completely charged before the next time the
+ t
100K
OFF
are the external component values and t
for allowing a good current regulation by the PWM stage. Furthermore, the on time t
100nF
DT
= 0.6 · R
· C
OFF
OFF
OFF
also affects the Rise Time t
· C
OFF
OFF
B
to implement the drive circuit for most motors.
Slow Decay
ON(MIN)
+ t
t
ON
RCFALL
DT
OFF
1 s t
1 s t
t
t
RCRISE
, which depends by motors and supply parameters, has to
OFF
C
.
versus C
BLANK
DT
D
OFF
DT
RCRISE
is the internally generated Dead Time with:
t
ON
A
and R
of the voltage at the pin RCOFF. The
B
OFF
Slow Decay
values. It can be approximately
t
RCFALL
1 s t
1 s t
t
t
RCRISE
OFF
C
BLANK
DT
D
ON