參數(shù)資料
型號(hào): L6207D
廠商: STMICROELECTRONICS
元件分類(lèi): 運(yùn)動(dòng)控制電子
英文描述: STEPPER MOTOR CONTROLLER, 2.8 A, PDSO24
封裝: SOP-24
文件頁(yè)數(shù): 4/23頁(yè)
文件大?。?/td> 395K
代理商: L6207D
L6207
12/23
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
L6207N STEPPER MOTOR CONTROLLER, 2.8 A, PDIP24
L6219DS-T STEPPER MOTOR CONTROLLER, 1 A, PDSO24
L6382D5TR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
L6382D5 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
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