ISL97671A Ver la hoja de datos (PDF) - Intersil

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Fabricante

ISL97671A

6-Channel SMBus/I2C or PWM Dimming LED Driver with Phase Shift Control

Intersil 

ISL97671A

Electrical Specifications VIN = 12V, EN = 5V, RSET = 20.1kΩ, unless otherwise noted. Boldface limits apply over the operating

temperature range, -40°C to +85°C. (Continued)

PARAMETER

DESCRIPTION

CONDITION

MIN

MAX

(Note 8) TYP (Note 8) UNIT

LXstart_thres LX Start-up Threshold

0.9

1.2

V

ILXStart-up LX Start-up Current

SMBus/I2C INTERFACE

1

3.5

5

mA

VIL

Guaranteed Range for Data, Clock Input Low

Voltage

0.8

V

VIH

Guaranteed Range for Data, Clock Input High

Voltage

VOL

SMBus/I2C Data line Logic Low Voltage

IPULLUP = 4mA

ILEAK

Input Leakage On SMBData/SMBClk

SMBus/I2C TIMING SPECIFICATIONS

Measured at 4.8V

tEN-SMB/I2C Minimum Time Between EN high and

SMBus/I2C Enabled

1µF capacitor on VDC

1.5

VDD

V

0.17

V

-10

10

µA

2

ms

PWS

fSMB

tBUF

Pulse Width Suppression on

SMBCLK/SMBDAT

SMBus/I2C Clock Frequency

Bus Free Time Between Stop and Start

Condition

0.15

1.3

0.45

µs

400

kHz

µs

tHD:STA

Hold Time After (Repeated) START Condition.

After this Period, the First Clock is Generated

0.6

µs

tSU:STA

Repeated Start Condition Setup Time

0.6

µs

tSU:STO

Stop Condition Setup Time

0.6

µs

tHD:DAT

Data Hold Time

300

ns

tSU:DAT

Data Setup Time

100

ns

tLOW

Clock Low Period

1.3

µs

tHIGH

Clock High Period

0.6

µs

tF

Clock/data Fall Time

300

ns

tR

Clock/data Rise Time

300

ns

NOTES:

8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization

and are not production tested.

9. At maximum VIN of 26.5V, minimum VOUT is limited 28V.

7

FN7709.1

March 24, 2011

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