SC622AEVB datasheet(6/23 Pages) SEMTECH

Numer części	SC622AEVB

Szczegółowy opis	LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and I2C Interface

PDF	23 Pages

Scroll/Zoom	100%

Producent	SEMTECH [Semtech Corporation]

Strona internetowa	http://www.semtech.com

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6 / 23 page

SC622A

Notes:

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

(2) Test voltage is V

OUT

= 4.5V — a relatively extreme LED voltage — to force a transition during test. Typically V

OUT

= 3.3V for the white LED at

100mA.

(3) Dropout is defined as (V

- V

LDO1

) when V

LDO1

drops 100mV from nominal. Dropout does not apply to LDO2 since it has a maximum output voltage

of 1.8V.

(4) Guaranteed by design

Parameter

Symbol

Conditions

Min

Typ

Max

Units

I2C Interface (continued)

I/O Pin Capacitance

I2C Timing

Clock Frequency

SCL

400

440

kHz

SCL Low Period(4)

LOW

1.3

μs

SCL High Period(4)

HIGH

0.6

μs

Data Hold Time(4)

HD_DAT

0μs

Data Setup Time(4)

SU_DAT

100

μs

Setup Time for Repeated

START Condition(4)

SU_STA

0.6

μs

Hold Time for Repeated

START Condition(4)

HD_STA

0.6

μs

Setup Time for STOP

Condition(4)

SU_STO

0.6

μs

Bus-Free Time Between

STOP and START(4)

BUF

1.3

μs

Interface Start-up Time(4)

Bus Start-up Time After EN Pin is Pulled High

Electrical Characteristics (continued)

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