RT7247C datasheet(5/15 Pages) RICHTEK

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RT7247C

DS7247C-02

September 2012

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Logic-High

VIH

EN Input Threshold

Voltage

Logic-Low

VIL

0.4

Input Under Voltage Lockout

Threshold

VUVLO

VIN Rising

3.8

4.2

4.5

Input Under Voltage Lockout

Hysteresis

ΔVUVLO

320

Soft-Start Current

ISS

VSS = 0V

μA

Soft-Start Period

tSS

CSS = 0.1μF

13.5

Thermal Shutdown

TSD

150

°C

Note 1. Stresses beyond those listed

“Absolute Maximum Ratings” may cause permanent damage to the device. These are

stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in

the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may

affect device reliability.

Note 2.

θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. θJC is

measured at the exposed pad of the package.

Note 3. Devices are ESD sensitive. Handling precaution is recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.

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