MP8845C – 5A HIGH EFFICIENT SYNC. STEP DOWN SWITCHER WITH I2C

MP8845C Rev. 1.02

www.MonolithicPower.com

6

4/25/2014

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I2C PORT SIGNAL CHARACTERISTICS

(continued)

Parameter

Symbol

Condition

Cb=100pF

Cb=400pF

Units

Min

Max

Min

Max

Fall time of SDAH signal

10

80

20*0.1Cb

300

ns

Set-up time for STOP

condition

160

-

600

-

ns

Bus free time between a

STOP and START

condition

160

-

1300

-

ns

Data Valid Time

-

160

-

900

ns

Data valid acknowledge

time

-

160

-

900

ns

Capacitive load for each

bus line

SDAH and SCLH line

-

100

-

400

pF

SDAH+SDA line and

SCLH+SCL line

-

400

-

400

pF

Noise margin at the

LOW level

For each connected

device

-

0.1Vcc

0.1Vcc

-

V

Noise margin at the

HIGH level

For each connected

device

-

0.2Vcc

0.2Vcc

-

V