UCS221L-AG6-R datasheet(3/5 Pages) UTC

3 / 5 page

UCS221

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

3 of 5

www.unisonic.com.tw

QW-R140-010.a



ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

VOUT

5.5

Maximum Voltage On Any Pin

VIN

VDD+0.3

Maximum Current On Any PAD

VSHDN

100

Power Dissipation

200

Junction Temperature

150

°С

Operating Temperature

TOPR

-20 ~ +75

°С

Storage Temperature

TSTG

-50 ~ +150

°С

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.



ELECTRICAL CHARACTERISTICS (VDD = 3.3V, TA = 25°С, unless otherwise specified)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Operating Supply Voltage

VDD

2.5

3.3

VDD=3.3V

μA

Current Consumption

IDD

VDD=5.0V

μA

Sense Input Capacitance Range

(Note3)

Reference Input Capacitance

Range (Note4)

Sense Input Resistance Range

200

Ω

Minimum Detectable Capacitance

Variation

∆CS

CS=10pF

0.2

∆CS>0.2pF

Ω

Output Impedance (Open Drain)

∆CS<0.2pF

MΩ

Self Calibration Time After VDD

Setting

TCAL

200

Maximum Supply Voltage Rising

Time

TR_VDD

100

Recommended Sync Resistance

Range

RSYNC

MΩ

Notes: 1. The sensitivity can be increased with lower CS value. The recommended value of CS is 10pF when using

3T PC(Poly Carbonate) cover and 10mm x 7mm touch pattern and middle sensitivity selection.

2. CR value is recommended as same that of CS_TOT as possible for effective differential sensitivity calibration.

CS_TOT= CS + CPARA (CPARA is parasitic capacitance of CS pin) If proper CR capacitor value is used, CR pin

has almost same frequency as that of CS pin.

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