LTC4413 datasheet(3/32 Pages) AD

3 / 32 page

LTC4421

Rev. 0

For more information www.analog.com

ORDER INFORMATION

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

V1, V2 Operating Voltage Range

(Note 4)

3.0

VINT(UVL)

INTVCC Undervoltage Lockout Threshold Voltage

2.3

2.6

ΔVINT(HYS)

INTVCC Undervoltage Lockout Hysteresis

VINTVCC

INTVCC Output Voltage

IINTVCC = 0µA

3.3

3.9

4.5

ΔVINTVCC

INTVCC Voltage Change from Zero to Full Load

IINTVCC = 0 to –500µA

–35

–85

–200

VCPO(UVL)

CPOGOOD Threshold Voltage

CPO–CPOREF

5.7

6.7

7.7

VCPO(HYS)

CPOGOOD Hysteresis

1.4

ICC(TOT)

Total Input Supply Current

V1, V2, OUT1, OUT2, EXTVCC, CPOREF

0.53

ICC(SHDN)

Total Input Supply Current in Shutdown

V1, V2, EXTVCC

5.4

µA

ICC(PRIO)

Input Supply Current of Highest Priority Valid

Supply

Measure I(EXTVCC)

360

750

µA

ICC(VMAX)

Input Supply Current of Highest Voltage Input

Supply

Measure I(V2)

µA

ICC(CPOREF)

CPOREF Charge Pump Supply Current

CPOREF = 11V

160

300

µA

PRIORITIZER CONTROL (V1, V2, SENSE1, SENSE2, GATE1, GATE2, SOURCE1, SOURCE2, OUT1, OUT2)

ΔVG(OFF)

External N-Channel MOSFET Off Threshold

Voltage

(GATE1 – V1), (GATE2 – V2), GATE Falling l

–0.6

–1.5

ΔVREV

Input to Output Reverse Voltage Connect Threshold (V1– OUT1), (V2–OUT2), OUT1, OUT2 Falling l

ΔVGATE(CL)

External N-Channel MOSFET Gate Drive,

(GATE – CPOREF)

CPOREF = 3.2V, EXTVCC = 3.0V, I = 0, –1µA

CPOREF = 12V, 36V, I = 0, –1µA

10.8

11.6

ISOURCE, HLD

SOURCE Hold Current

SOURCE = 12V, Channel Off

2.5

µA

ISOURCE, OFF

SOURCE Fast Off Current

SOURCE = 12V, Channel Off

0.7

1.6

3.2

IGATE(ON)

GATE On Pull-Up Current

V(SENSE) – V(OUT) = 0V, GATE = 16V,

OUT = 10V, V1 = V2 = 12V

–8

–16.5

–26

IGATE(OFF,FWD) GATE Off Pull-Down Current, Large Forward

Sense Voltage

V(SENSE)–V(OUT) = 100mV, GATE = 16V,

OUT = 10V, V1 = V2 = 12V

124

The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. See the LTC4421 Data Sheet Nomenclature section for more details on pin

conditions. V1 = 12V, V2 = 13V, EXTVCC = CPOREF = OUT1 = OUT2 = SENSE1 = SENSE2 = 11V, OV1 = OV2 = TMR1 = TMR2 = OV, UVR1 =

UVR2 = UVF1 = UVF2 = DISABLE1 = DISABLE2 = SHDN = RETRY = CASIN = 4V, CPO = 23.5V, QUAL = INTVCC, unless otherwise noted.

TUBE

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4421CG#PBF

LTC4421CG#TRPBF

LTC4421G

36-Lead Plastic SSOP

0°C to 70°C

LTC4421IG#PBF

LTC4421IG#TRPBF

LTC4421G

36-Lead Plastic SSOP

–40°C to 85°C

LTC4421HG#PBF

LTC4421HG#TRPBF

LTC4421G

36-Lead Plastic SSOP

–40°C to 125°C

LTC4421CUHE#PBF

LTC4421CUHE#TRPBF

4421

36-Lead Plastic QFN

0°C to 70°C

LTC4421IUHE#PBF

LTC4421IUHE#TRPBF

4421

36-Lead Plastic QFN

–40°C to 85°C

LTC4421HUHE#PBF

LTC4421HUHE#TRPBF

4421

36-Lead Plastic QFN

–40°C to 125°C

Contact the factory for parts specified with wider operating temperature ranges.

Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.

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