LTC4556EUF datasheet(2/20 Pages) LINER

2 / 20 page

LTC4556

4556f

VBATT, DVCC, CPO, FAULT,

UNDERV to GND ....................................... –0.3V to 6.0V

PRES, DATA, RIN, SYNC, ASYNC,

LD, DIN, SCLK to GND ............... –0.3V to (DVCC + 0.3V)

I/O, CLK ....................................... –0.3V to (VCC + 0.3V)

ORDER PART

NUMBER

TJMAX = 125°C, θJA = 37°C/W

EXPOSED PAD (PIN 25) IS SGND.

MUST BE SOLDERED TO PCB

Consult LTC Marketing for parts specified with wider operating temperature ranges.

LTC4556EUF

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VBATT = 3.3V, DVCC = 3.3V unless otherwise noted.

ICC (Note 5) .......................................................... 65mA

VCC Short-Circuit Duration............................... Indefinite

Operating Temperature Range (Note 4) .. – 40

°C to 85°C

Storage Temperature Range ................. – 65

°C to 125°C

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Power Supply

VBATT Operating Voltage

2.7

5.5

IVBATT Operating Current

VCC = 5V, ICC = 0µA

250

400

µA

IVBATT Shutdown Current

No Card Present, VCPO = 0V

0.5

1.75

µA

DVCC Operating Voltage

1.7

5.5

IDVCC Operating Current

525

µA

IDVCC Shutdown Current

0.2

1.5

µA

Charge Pump

ROLCP 5V Mode Open-Loop

VBATT = 3.075V, ICPO = ICC = 60mA, (Note 3)

8.2

Ω

Output Resistance

CPO Turn On Time

ICC = 0mA, 10% to 90%

0.6

1.5

TOP VIEW

UF PACKAGE

24-LEAD (4mm

× 4mm) PLASTIC QFN

DVCC

DATA

RIN

SYNC

ASYNC

FAULT

I/O

RST

CLK

VCC

24 23 22 21 20 19

10 11 12

UF PART

MARKING

4556

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