RT9451 datasheet(9/37 Pages) RICHTEK

9 / 37 page

RT9451

DS9451-00

September 2013

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Input High Threshold Level

1.2

Input Bias Current (SCL, SDA,

INT)

I(bias)

VIO = 1.8V

μA

SCL Clock Frequency

fSCL

400

kHz

Oscillator

Oscillator Frequency

fOSC

375

kHz

Frequency Accuracy

−10

Thermal Shutdown

Thermal Shutdown Threshold

TSD

165

°C

Thermal Shutdown Hysteresis

ΔT

°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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