SC623A

5

Electrical Characteristics (continued)

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Digital Input Voltage

V

B-IL

0.4

V

V

B-IH

1.6

V

SDA Output Low Level

I

DIN

(SDA) ≤ 3mA

0.4

V

Digital Input Current

I

B-IN

-0.2

0.2

μA

Hysteresis of

Schmitt Trigger Inputs

V

HYS

0.1

V

Maximum Glitch Pulse

Rejection

t

SP

50

ns

I/O Pin Capacitance

C

IN

10

pF

Clock Frequency

f

SCL

400

440

kHz

t

LOW

1.3

μs

t

HIGH

0.6

μs

t

HD_DAT

0μs

t

SU_DAT

100

μs

Setup Time for Repeated

t

SU_STA

0.6

μs

Hold Time for Repeated

t

HD_STA

0.6

μs

Setup Time for STOP

t

SU_STO

0.6

μs

Bus-Free Time Between

t

BUF

1.3

μs

t

EN

Bus Start-up Time After EN Pin is Pulled High

1

ms

Notes:

(1) ΔV

F

is the voltage difference between any two LEDs.

(2) Once tripped, flash output will remain disabled until FLEN pin is cycled or reset via serial interface.

(3) Current matching equals ± [I

BL(MAX)

- I

BL(MIN

] / [I

BL(MAX)

+ I

BL(MIN)

].

(4) Test voltage is V

OUT

= 4.0V — a relatively extreme LED voltage — to force a transition during test. Typically V

OUT

= 3.2V for white LEDs.

(5) Guaranteed by design