參數(shù)資料
型號(hào)： TB62205FG
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 0.96 A, PDSO38
封裝： 0.450 INCH, 0.65 MM PITCH, PLASTIC, HSOP-36/38
文件頁數(shù)： 18/36頁
文件大?。?/td> 828K
代理商： TB62205FG
TB62205FG
2005-04-04
25
Charge Pump Circuit Operation
At initial charging
(1)
When the RESET circuit is released, Tr1 is turned on. Then Tr2 is turned off and Ccp2 is charged
from the VM power supply via Di1.
(2)
When Tr1 is turned off and Tr2 is turned on, Ccp1 is charged from Ccp2 via Di2.
(3)
When the potential difference between VM and VH (Ccp A pin voltage = charge pump voltage)
reaches VDD or higher, the operation of the charge pump circuit stops. (In Full Mode)
When IC is operating
(4)
Ccp1 charge is used at fchop switching and the VH potential drops.
(5)
Charges up by (1) and (2) above.
Output switching
Initial charging
Full Mode
(1)
(2)
(3)
(4)
t
(5)
(4)
(5)
VH
VM
VH = VM + VDD = Charge pump voltage
i1
= Charge pump output current
i2
= Gate consumption current
VDD = 5 V
VM = 24 V
Comparator
and
Controller
VM
Output
H switch
i2
Ccp A
C
cp1
0.22
F
Ccp C
R1
VH
RS
RRS
Di2
Di1
Di3
Vz
i1
(2)
Tr1
Tr2
7
(1)
(2)
C
cp2
0.022
F
Ccp B
相關(guān)PDF資料
PDF描述
TB62205FG STEPPER MOTOR CONTROLLER, 0.96 A, PDSO38
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