L6228PDTR STMicroelectronics, L6228PDTR Datasheet - Page 17

IC DRVR STEPPER MOTOR 36PWRSOIC

L6228PDTR

Manufacturer Part Number
L6228PDTR
Description
IC DRVR STEPPER MOTOR 36PWRSOIC
Manufacturer
STMicroelectronics
Type
Driverr
Datasheet

Specifications of L6228PDTR

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
Surface Mount
Package / Case
36-PowerSOIC
Product
Stepper Motor Controllers / Drivers
Operating Supply Voltage
8 V to 52 V
Supply Current
1.4 A
Mounting Style
SMD/SMT
For Use With
497-6818 - EVAL BOARD FOR L6228Q
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
497-4007-2

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Figure 20 shows the Overcurrent Detection operation. The Disable Time t
ation can be easily programmed by means of the accurate thresholds of the logic inputs. It is affected whether by
C
bridge when an overcurrent has been detected depends only by C
C
should be chosen as big as possible according to the maximum tolerable Delay Time and the R
be chosen according to the desired Disable Time.
The resistor R
are respectively 100K
Figure 20. Overcurrent Protection Waveforms
EN
EN
and R
is also used for providing immunity to pin EN against fast transient noises. Therefore the value of C
EN
values and its magnitude is reported in Figure 21. The Delay Time t
EN
BRIDGE
V
V
I
SOVER
OCD
th(OFF)
V
th(ON)
should be chosen in the range from 2.2K to 180K . Recommended values for R
OFF
OFF
I
EN
V
OUT
ON
ON
DD
t
and 5.6nF that allow obtaining 200 s Disable Time.
OCD(ON)
t
EN(FALL)
t
DELAY
t
D(OFF)EN
t
OCD(OFF)
EN
V
EN(LOW)
t
t
value. Its magnitude is reported in Figure 22.
EN(RISE)
DISABLE
DISABLE
before recovering normal oper-
t
D(ON)EN
DELAY
D02IN1400
before turning off the
EN
value should
EN
and C
L6228
17/26
EN
EN

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