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UC3655L-XX-AF5-R Fiches technique(PDF) 7 Page - Unisonic Technologies

No de pièce UC3655L-XX-AF5-R
Description  500mA SYNCHRONOUS STEP-DOWN DC/DC CONVERTERS
Download  9 Pages
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Fabricant  UTC [Unisonic Technologies]
Site Internet  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3655L-XX-AF5-R Fiches technique(HTML) 7 Page - Unisonic Technologies

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UC3655
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
7 of 9
www.unisonic.com.tw
QW-R502-280.c
OPERATIONAL EXPLANATION
CE / MODE Pin Function
When a low level signal is input to the CE/MODE pin the operation of the UC3655 series will enter into the shut down
mode. In this mode, the current consumption occurs only in the detector and is 0 μA (TYP.), with a state of high
impedance at the Lx pin and VOUT pin. By inputting a high level signal to the CE/MODE pin the IC starts its
operation. The input of the CE/MODE pin is a CMOS input and its sink current is 0 μA (TYP.).
UC3655
series - Examples of how to use CE/MODE pin
VDD
R1
CE/MODE
SW_CE
VIN
SW_CE
STATUS
ON
Stand-by
OFF
Operation
SW_CE
STATUS
ON
Stand-by
OFF
Operation
FUNCTIONS
CE/MODE
VOLTAGE LEVEL
OPERATION
H Level
VIN-0.3V≦H level≦VIN
Synchronous PWM/PFM Automatic Switching Control
M Level
0.9V≦M Level≦VIN-1.0V
L Level
0V≦L Level≦0.3V
Stand-by


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