Sept 27-07 rev G

SP7682: Backlight and Flash Driver

© 2007 Exar Corporation

Page 3

I

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

Serial Clock Frequency

400

kHz

Bus Free Time Between a STOP and a

START

1.3

µs

Hold Time, Repeated START Condition

0.6

µs

Repeated START Condition Setup Time

0.6

µs

STOP Condition Setup Time

0.6

µs

Data Hold Time

225

900

ns

Input Data Hold Time

0

900

ns

Data Setup Time

100

ns

SCL Clock Low Period

1.3

µs

SCL Clock High Period

0.6

µs

Rise Time of Both SDA and SCL

Signals, receiving

20+

0.1Cb

300

ns

(Notes2, 3)

Fall Time of Both SDA and SCL

Signals, Receiving

20+

0.1Cb

300

ns

(Note2, 3)

Fall Time of SDA Transmitting

20+

0.1Cb

250

ns

(Note2, 3, 4)

Pulse Width of Spike Suppressed

0

50

ns

(Note5)

Capacitive Load for Each Bus Line

Cb

400

400

pF

(Note 2)

I²C startup time after UVLO clears

1

1

µs

(Note 2)

Note 2: Guaranteed by design.

Note5: Input filters on the SDA and SCL inputs suppress noise spikes less than 50ns.

SP7682A: SINGLE LINE PROGRAMMABLE SERIAL INTERFACE SPECIFICATIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

CONDITIONS

SET_BL, SET_FL logic low threshold

0.4

V

SET_BL, SET_FL logic high threshold

1.6

V

SET_BL, SET_FL logic low time

0.5

250

µs

SET_BL, SET_FL logic high time

0.5

µs

SET_BL shutdown delay

225

500

800

µs

SET_FL shutdown delay

325

500

700

µs