LTC4555 datasheet(2/8 Pages) LINER

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LTC4555

4555fb

VBAT, DVCC, VCC to GND............................ –0.3V to 6.5V

Digital Inputs to GND ................................ –0.3V to 6.5V

CLK, RST, I/O to GND .......................–0.3V to VCC + 0.3V

VCC Short-Circuit Duration ................................... Inﬁnite

Operating Temperature Range (Note 2).... –40°C to 85°C

Junction Temperature ........................................... 125°C

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

(Note 1)

16 15 14 13

TOP VIEW

UD PACKAGE

16-LEAD (3mm

3mm) PLASTIC QFN

SHDN

VSEL

DVCC

CLK

GND

RST

TJMAX = 125°C, θJA = 68°C/W, θJC = 4.2°C/W

EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4555EUD#PBF

LTC4555EUD#TRPBF

LAAA

16-Lead (3mm

× 3mm) Plastic QFN

–40°C to 85°C

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

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

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

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

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

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

temperature range, otherwise speciﬁcations are at TA = 25°C.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VBAT Operating Voltage

VBAT Operating Current

ICC = 0mA

μA

VBAT Shutdown Current

SHDN = 0V, VBAT = 4.5V

1μA

DVCC Operating Voltage

1.2

4.4

DVCC Operating Current

fCLK = 1MHz

510

μA

DVCC Shutdown Current

SHDN = 0V

1μA

DVCC Undervoltage Lockout

0.5

1.1

VCC Output Voltage

VSEL = DVCC, VBAT = 3V, IVCC = 50mA

VSEL = DVCC, VBAT = 3.3V to 6V, IVCC = 0mA to 50mA

VSEL = 0, VBAT = 2.6V to 6V, IVCC = 0mA to 50mA

2.8

1.7

2.8

3.0

1.8

3.2

1.9

VCC Short-Circuit Current

VCC Shorted to GND

110

175

Controller Inputs/Outputs

Input Voltage Range

SHDN, VSEL, RIN, CIN, DATA

DVCC

Input Current (IIH/IIL)

SHDN, VSEL, RIN, CIN

–100

100

High Input Threshold Voltage (VIH)RIN, CIN

0.7

× DVCC

Low Input Threshold Voltage (VIL)RIN, CIN

l 0.2 × DVCC

High Input Threshold Voltage (VIH)

SHDN, VSEL

Low Input Threshold Voltage (VIL)

SHDN, VSEL

0.4

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