LTC3219EUD#PBF【PDF 2/20 页】IC LED DRIVR QVGA DISPLAY 20-QFN

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LTC3219

ABSOLUTE MAXIMUM RATINGS

(Notes 1, 4)

V BAT , DV CC , CPO ........................................... –0.3V to 6V

ULED1-ULED9 ............................................. –0.3V to 6V

PIN CONFIGURATION

TOP VIEW

SDA, SCL, ENU ...........................–0.3V to (DV CC + 0.3V)

I CPO (Note 2) .......................................................250mA

CPO Short-Circuit Duration .............................. Inde?nite

Operating Temperature Range (Note 3).... –40°C to 85°C

Storage Temperature Range................... –65°C to 125°C

CPO 1

ULED1 2

ULED2 3

ULED3 4

ULED4 5

20 19 18 17 16

21

15 GND

14 ULED9

13 ULED8

12 ULED7

11 ULED6

6

7

8

9 10

UD PACKAGE

20-LEAD (3mm

3mm) PLASTIC QFN

T JMAX = 125°C, θ JA = 68°C/W

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

LTC3219EUD#PBF

TAPE AND REEL

LTC3219EUD#TRPBF

PART MARKING

LCJV

PACKAGE DESCRIPTION

20-Lead (3mm × 3mm) Plastic QFN

TEMPERATURE RANGE

–40°C to 85°C

Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.

Consult LTC Marketing for information on non-standard lead based ?nish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/

ELECTRICAL CHARACTERISTICS The ● denotes the speci?cations which apply over the full operating

temperature range, otherwise speci?cations are at T A = 25°C. V BAT = 3.6V, DV CC = 3V, ENU = Hi, C1/C4 = 2.2μF, C2, C3 = 1μF, unless

otherwise noted.

PARAMETER

V BAT Operating Voltage

I VBAT Operating Current

CONDITIONS

I CPO = 0, 1x Mode

●

MIN

2.9

TYP

0.4

MAX

5.5

UNITS

V

mA

V BAT UVLO Threshold

I CPO = 0, 1.5x Mode

I CPO = 0, 2x Mode

1.7

2.1

1.5

mA

mA

V

DV CC Operating Voltage

DV CC UVLO Threshold

V BAT Shutdown Current

DV CC Shutdown Current

●

●

1.5

1

3.2

5.5

1

V

V

μA

μA

Universal LED Current, 6-Bit Linear DACs, ULED = 1V

Full-Scale LED Current

Minimum LED Current

LED Current Matching

Blink Rate Period

Data Code = 1

Any Two Outputs

REG 11, D3 and D4

●

25

28

0.51

2

1.25

31

mA

mA

%

s

2.5

s

ULED Up/Down Gradation Ramp Times

REG11, D1 and D2

0.24

0.48

0.96

s

s

s

3219fa

2

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