LTC3850-2 datasheet(2/36 Pages) LINER

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LTC3850-2

38502f

ABSOLUTE MAXIMUM RATINGS

Input Supply Voltage (VIN).........................30V to –0.3V

Input Supply Transient Voltage (VIN) < 500ms, with

INTVCC ≥ 5V...........................................34V to –0.3V

Top Side Driver Voltages

BOOST1, BOOST2.................................. 34V to –0.3V

Switch Voltage (SW1, SW2) ......................... 30V to –5V

INTVCC, RUN1, RUN2, PGOOD, EXTVCC,

(BOOST1-SW1), (BOOST2-SW2)................. 6V to –0.3V

SENSE1+, SENSE2+, SENSE1–,

SENSE2– Voltages..................................... 5.5V to –0.3V

MODE/PLLIN, TK/SS1,TK/SS2, FREQ/PLLFLTR

Voltages ................................................ INTVCC to –0.3V

ITH1, ITH2, VFB1, VFB2 Voltages..................2.7V to –0.3V

INTVCC Peak Output Current ................................100mA

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

Junction Temperature (Note 3) ............................. 125°C

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

Lead Temperature (Soldering, 10 sec)

(GN Package).................................................... 300°C

(Note 1)

TOP VIEW

GN PACKAGE

28-LEAD NARROW PLASTIC SSOP

RUN1

SENSE1+

SENSE1–

VFB1

TK/SS1

ITH1

SGND

ITH2

TK/SS2

VFB2

SENSE2–

SENSE2+

RUN2

EXTVCC

FREQ/PLLFLTR

MODE/PLLIN

SW1

TG1

BOOST1

BG1

VIN

INTVCC

BG2

PGND

BOOST2

TG2

SW2

PGOOD

TJMAX = 125°C, θJA = 95°C/W

PIN CONFIGURATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3850IGN-2#PBF

LTC3850IGN-2#TRPBF

LTC3850GN-2

28-Lead Narrow Plastic SSOP

–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/

ORDER INFORMATION

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