參數(shù)資料
型號(hào): L6227N
廠商: STMICROELECTRONICS
元件分類: 運(yùn)動(dòng)控制電子
英文描述: STEPPER MOTOR CONTROLLER, 2.8 A, PDIP24
封裝: POWER, DIP-24
文件頁(yè)數(shù): 4/22頁(yè)
文件大小: 389K
代理商: L6227N
L6227
12/22
Figure 10. Area where tON can vary maintaining the PWM regulation.
SLOW DECAY MODE
Figure 11 shows the operation of the bridge in the Slow Decay mode. At the start of the off time, the lower power
MOS is switched off and the current recirculates around the upper half of the bridge. Since the voltage across
the coil is low, the current decays slowly. After the dead time the upper power MOS is operated in the synchro-
nous rectification mode. When the monostable times out, the lower power MOS is turned on again after some
delay set by the dead time to prevent cross conduction.
Figure 11. Slow Decay Mode Output Stage Configurations
0.1
1
10
100
1
10
100
Coff [nF]
to
n(
mi
n)
[
s]
1.5
s (typ. value)
A) ON TIME
B) 1
s DEAD TIME
C) SYNCHRONOUS
RECTIFICATION
D) 1
s DEAD TIME
D01IN1336
相關(guān)PDF資料
PDF描述
L6228Q STEPPER MOTOR CONTROLLER, 2.8 A, QCC32
L6228QTR STEPPER MOTOR CONTROLLER, QCC32
L6229D BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO24
L6229N BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDIP24
L6229PDTR BRUSHLESS DC MOTOR CONTROLLER, 2.8 A, PDSO36
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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