参数资料
型号: L6228D
厂商: STMICROELECTRONICS
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, 2.8 A, PDSO24
封装: SO-24
文件页数: 9/26页
文件大小: 451K
代理商: L6228D
17/26
L6228
Figure 20 shows the Overcurrent Detection operation. The Disable Time tDISABLE before recovering normal oper-
ation can be easily programmed by means of the accurate thresholds of the logic inputs. It is affected whether by
CEN and REN values and its magnitude is reported in Figure 21. The Delay Time tDELAY before turning off the
bridge when an overcurrent has been detected depends only by CEN value. Its magnitude is reported in Figure 22.
CEN is also used for providing immunity to pin EN against fast transient noises. Therefore the value of CEN
should be chosen as big as possible according to the maximum tolerable Delay Time and the REN value should
be chosen according to the desired Disable Time.
The resistor REN should be chosen in the range from 2.2K to 180K. Recommended values for REN and CEN
are respectively 100K
and 5.6nF that allow obtaining 200s Disable Time.
Figure 20. Overcurrent Protection Waveforms
ISOVER
IOUT
Vth(ON)
Vth(OFF)
VEN(LOW)
VDD
tOCD(ON)
tD(ON)EN
tEN(FALL)
tEN(RISE)
tDISABLE
tDELAY
tOCD(OFF)
tD(OFF)EN
VEN
BRIDGE
ON
OFF
OCD
ON
OFF
D02IN1400
相关PDF资料
PDF描述
L6228N STEPPER MOTOR CONTROLLER, 2.8 A, PDIP24
L6229QTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, QCC32
L6229Q BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, QCC32
L6230PDTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO36
L6230PD BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO36
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