SX8674ICSTRT datasheet(9/64 Pages) SEMTECH

9 / 64 page

ADVANCED COMMUNICATIONS & SENSING

Rev 1 – 25

th July 2011

www.semtech.com

SX8674/SX8675/SX8676

Haptics Enabled Multitouch 4/5-Wire

Resistive Touchscreen Controller with Proximity Sensing

ELECTRICAL CHARACTERISTICS

2.1

Absolute Maximum Ratings

Stress above the limits listed in the following table may cause permanent failure. Exposure to absolute ratings for

extended time periods may affect device reliability. The limiting values are in accordance with the Absolute

Maximum Rating System (IEC 134). All voltages are referenced to ground (GND).

Symbol

Description

Conditions

Min

Max

Unit

VABS

Voltage applied on any pin

- 0.5

3.9

X+/BR, Y+/TR, X-/TL,

Y-/BL, VDD, MVDD

+/-15

(1), +/-8(2)

VESDHBM

Electrostatic handling

Human Body Model (HBM)

Other pins

+/-8

(2)

X+/BR, Y+/TR, X-/TL,

Y-/BL, VDD, MVDD

+/-1

VESDCDM

Electrostatic handling

Charged Device Model (CDM)

Other pins

+/-1

X+/BR, Y+/TR, X-/TL,

Y-/BL, VDD, MVDD

+/-250

VESDMM

Electrostatic handling

Machine Model (MM)

Other pins

+/-250

VESDCD

Electrostatic handling

Contact Discharge (CD)

X+/BR, Y+/TR, X-/TL,

Y-/BL, VDD, MVDD

+/-15

TAMB

Operating ambient temperature

-40

+85

°C

TJUN

Operating junction temperature

-40

+125

°C

TSTOR

Storage temperature

-55

+150

°C

ILAT

Latch-up current

(3)

+/-100

(1) Tested to TLP (10A)

(2) Tested to JEDEC standard JESD22-A114

(3) Tested to JEDEC standard JESD78

Table 2 - Absolute Maximum Ratings

2.2

Thermal Characteristics

Symbol

Description

Conditions

Min

Max

Unit

θJAQ

Thermal Resistance Junction – Ambient

QFN package

30.5

°C/W

θJAW

Thermal Resistance Junction – Ambient

WLCSP package

°C/W

Table 3 – Thermal Characteristics

2.3

Electrical Specifications

Table below applies to full supply voltage and temperature range, unless otherwise specified. Typical values are

given for TA = +25°C, VDD=VDDM=3.3V.

Symbol

Description

Conditions

Min

Typ.

Max

Unit

Supply

VDD

Main supply voltage

2.3

3.6

OFF

(MAN mode, no command,

HAPT OFF)

0.4

0.75

WAIT

(PENDET/TRG mode, pen up,

PROX OFF, HAPT OFF)

1.7

TOUCH1

(PENTRG mode, pen down, X+Y,

RATE=4kcps, Nfilt=1,

POWDLY=0.5us, touchscreen

current excluded, HAPT OFF,

VDD=2.3V)

IDD

Main supply current

TOUCH2

(PENTRG mode, pen down, X+Y,

RATE=3kcps, Nfilt=7,

POWDLY=0.5us, touchscreen

current excluded, HAPT OFF)

120

160

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