RT9554A datasheet(4/10 Pages) RICHTEK

4 / 10 page

RT9554A

DS9554A-00

June 2014

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

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.

Parameter

Symbol

Test conditions

Min

Typ

Max

Unit

FLAG Pull Low Voltage

ISINK = 10mA

0.1

VBAT_REF = 0.4V

VBAT_REF = 0.8V

Input Current Sensing

Accuracy

CSacc

VBAT_REF = 2V

FLAG Leakage Current

Ileak_FLAG

EN Low

A

OCSET Comparator

BAT_REF Leakage Current

Ileak_BAT_REF

EN Low

A

BAT_REF Input Range

VBAT_REF

0.4

AC_REAL & AC_REF Comparator

Comparator Offset

VOS_AL_CMP

VAC_REAL = 0.3V to 2V

AC_REAL Input Range

VAC_REAL

0.3

AC_REF Input Range

VAC_REF

0.3

Comparator Response Time

VAC_REAL > VAC_REF

FLAG go low

200

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