SX8646I05AULTRT datasheet(8/67 Pages) SEMTECH

Part #	SX8646I05AULTRT

Description	Ultra Low Power, Capacitive Button Touch Controller (8 sensors) with Enhanced LED Drivers

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Manufacturer	SEMTECH [Semtech Corporation]

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ADVANCED COMMUNICATIONS & SENSING

DATASHEET

Revision 7_4, February 10

www.semtech.com

8

SX8646

Ultra Low Power, Capacitive Button Touch Controller

(8 sensors) with Enhanced LED Drivers

2.4

Electrical Specifications

All values are valid within the operating conditions unless otherwise specified.

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Current consumption

Active mode, average

IOP,active

30ms scan period,

8 sensors enabled,

minimum sensitivity

175

225

uA

Doze mode, average

IOP,Doze

195ms scan period,

8 sensors enabled,

minimum sensitivity

80

110

uA

Sleep

IOP,sleep

I2C and GPI listening,

sensors disabled

8

17

uA

GPIO, set as Input, RESETB, SCL, SDA

Input logic high

VIH

0.7*VDD

VDD + 0.3V

V

Input logic low

VIL

VSS applied to GND pins

VSS - 0.3V

0.8

V

Input leakage current

LI

CMOS input

±1

uA

Pull up resistor

RPU

when enabled

660

k

Ω

Pull down resistor

RPD

when enabled

660

k

Ω

GPIO set as Output, INTB, SDA

Output logic high

VOH

IOH <4mA

VDD-0.4

V

Output logic low

VOL

IOL,GPIO<12mA

IOL,SDA,INTB<4mA

0.4

V

Start-up

Power up time

tpor

time between rising edge

VDD and rising INTB

150

ms

RESETB

Pulse width

tres

50

ns

External components

Capacitor between VDIG, GND

Cvdig

type 0402, tolerance +/-50%

100

nF

Capacitor between VANA, GND

Cvana

type 0402, tolerance +/-50%

100

nF

Capacitor between CP, CN

Cint

type 0402, tolerance +/-10%

1

nF

Capacitor between VDD, GND

Cvdd

type 0402, tolerance +/-50%

100

nF

Table 5

Electrical Specifications

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