LP3918TLX-ASLASHNOPB datasheet(13/39 Pages) TI1

13 / 39 page

LP3918

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SNVS476D – AUGUST 2007 – REVISED MAY 2013

Serial Interface

Unless otherwise noted, VIN ( = VIN1 = VIN2 = BATT) = 3.6V, GND = 0V, CVIN1-2=10µF, CLDOX=1µF, and VLDO2 (DIG) = 3.0V.

Typical values and limits appearing in normal type apply for TJ = 25°C. Limits appearing in boldface type apply over the

entire junction temperature range for operation, Ta = TJ = −40°C to +125°C.

(1) (2)

Limit

Symbol

Parameter

Condition

Typ

Units

Min

Max

fCLK

Clock Frequency

400

kHz

tBF

Bus-Free Time between

1.3

µs

START and STOP

tHOLD

Hold Time Repeated START

0.6

µs

Condition

tCLK-LP

CLK Low Period

1.3

µs

tCLK-HP

CLK High Period

0.6

µs

tSU

Set-Up Time Repeated

0.6

µs

START Condition

tDATA-HOLD

Data Hold Time

tDATA-SU

Data Set-Up Time

100

tSU

Set-Up Time for STOP

0.6

µs

Condition

tTRANS

Maximum Pulse Width of

Spikes that Must be

Suppressed by the Input

Filter of both DATA & CLK

Signals

(1)

All electrical characteristics having room-temperature limits are tested during production with TJ = 25°C. All hot and cold limits are

speficied by correlating the electrical characteristics to process and temperature variations and applying statistical process control.

(2)

Specified by design. Not production tested.

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