UC3655G-XX-AF5-R UTC [Unisonic Technologies], UC3655G-XX-AF5-R Datasheet - Page 7

• Manufacturer Part Number: UC3655G-XX-AF5-R
• Description: 500mA SYNCHRONOUS STEP-DOWN DC/DC CONVERTERS
• Manufacturer: UTC [Unisonic Technologies]

UC3655
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
CE/MODE
V
SW_CE
DD
FUNCTIONS
OPERATIONAL EXPLANATION
M Level
H Level
L Level
R1
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
V
IN
VOLTAGE LEVEL
CE/MODE
0.9V≦M Level≦V
V
IN
0V≦L Level≦0.3V
-0.3V≦H level≦V
SW_CE
SW_CE
IN
OFF
OFF
ON
ON
-1.0V
Preliminary
IN
Operation
Operation
Stand-by
Stand-by
STATUS
STATUS
Synchronous PWM/PFM Automatic Switching Control
OPERATION
Stand-by
CMOS IC
QW-R502-280.b
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