Parameter

Symbol

Condition

Min

Typ

Max

Units

Current Sink Turn-on Time

t

ON

from 0 to 95% of target

1

ms

Current Sink Turn-off Time

t

OFF

from 90% to 10% of set value

1

μs

EN Input High Threshold

V

IH

V

1.6

V

EN Input Low Threshold

V

IL

V

0.4

V

EN Input High Current

I

IH

V

2

μA

T

OTP

155

°C

Digital Input Voltage

V

B-IL

0.4

V

V

B-IH

1.6

V

SDA Output Low Level

I

0.4

V

Digital Input Current

I

B-IN

-0.2

0.2

μA

Schmitt Trigger Input Hysteresis

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

SCL Low Period

t

LOW

1.3

μs

SCL High Period

t

HIGH

0.6

μs

Data Hold Time

t

HD_DAT

0

μs

Data Setup Time

t

SU_DAT

100

μs

Setup Time for Repeated

START Condition

t

SU_STA

0.6

μs

Hold Time for Repeated

START Condition

t

HD_STA

0.6

μs

Setup Time for STOP Condition

t

SU_STO

0.6

μs

Bus-Free Time Between

STOP and START

t

BUF

1.3

μs

Interface Start-up Time

t

EN

Bus Start-up Time After EN

Pin is Pulled High

350

μs

Electrical Characteristics (Cont.)

Notes:

(1) Current step size = 500μA - See Table 1 for other step size options.

(3) Current gain register set to maximum value - see Control Register section

for details.

(4) Current gain register set to minimum value - see Control Register section

for details.

(5) Guaranteed by design.

3

© 2006 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC620