參數(shù)資料
型號(hào)： TB62205F
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 0.96 A, PDSO36
封裝： 0.450 INCH, 0.65 MM PITCH, PLASTIC, HSOP-36
文件頁數(shù)： 15/36頁
文件大小： 826K
代理商： TB62205F
TB62205F
2005-04-04
22
Startup Sequence of Power Supply (Voltage)
(1) When VM supply voltage
exceeds VMR voltage, charge
pump reset is cleared.
(2)
When charge pump voltage
exceeds the normal voltage
(Cp R) and after the
DCDC_READY time delayed,
3.3-V (5 V) DC/DC converter
reset is cleared, and 3.3-V
DCDC goes up.
(3) The DC/DC converter
operated with soft switching
Mode at initial charging up
through 90 % of the normal
voltage by current controlling.
After that, the converter is
operated with full-charging
Mode.
(4) When external signal
becomes High, 12-V DCDC
starts charging. (12-V DCDC
is switched from the soft
switching Mode to the full
Mode same as the 3.3-V
DCDC.)
VM
Motor supply voltage
(External input)
Charge pump reset
(Internal signal)
Charge pump voltage
DCDC reset
(Internal signal)
DCDC3.3 V
(Output)
DCDC3.3 V Mode
DCDC12_STOP
(External input)
DCDC12 V
DCDC12 V Mode
RESET
Motor
Possible input range
Normal voltage
Achieved signal
VMR
0 V
tONG (Charge pump rise time)
VM + 5 V
Cp R
VM
3.3 V
DCDC_R
(3.3 V
× 90 )
Full switching Mode
Soft switching Mode
H
L
12 V
Full switching Mode
Soft switching Mode
H
L
H
t_DCDC_Start
L
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