LTC4413 datasheet(5/32 Pages) AD

5 / 32 page

LTC4421

Rev. 0

For more information www.analog.com

ELECTRICAL CHARACTERISTICS The

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.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

DIGITAL OUTPUTS (CH1, CH2, VALID1, VALID2, FAULT1, FAULT2, CASOUT)

VOL,HV

Output Voltage Low, CH, VALID, FAULT

I = 1mA, V1 = V2 = EXTVCC = 3.0V

I = 3mA, V1 = V2 = EXTVCC = 3.0V

185

0.58

450

1.35

IOH,HV

Open Drain, Output High Leakage Current

V = 36V, CH, VALID, FAULT

±1

µA

VCASO,OH

CASOUT Output High Voltage

I = –1µA , SHDN = 0V

3.4

4.5

VCASO,OL

CASOUT Output Low Voltage

I = 1mA

200

ICASO

CASOUT Pull-Up Current

CASOUT = 1V

–11

–22

–40

µA

ILK,CASO

CASOUT Leakage Current

CASOUT = 5.5V

±1

µA

Note 1. Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2. All currents into pins are positive; all voltages are referenced to

GND unless otherwise noted.

Note 3. Do not drive GATE1 and GATE2 above CPO. Doing so can cause

excessive voltage on CPO.

Note 4. V1 can operate down to 0V, provided V2 ≥ 3.0V or EXTVCC ≥ 3.0V.

Likewise, V2 can operate down to 0V, provided V1 ≥ 3.0V or EXTVCC ≥ 3.0V.

The LTC4421 dedicates 13 pins per channel for the pur-

poses of monitoring each input supply and controlling

its connection to the output. Pin names having suffix “1”

apply to Channel 1, while those having suffix “2” apply to

Channel 2. When no suffix is used when referencing one

of these pins, it means that the text applies to the pins

on both channels. For example, “Connect a capacitor

CTMR from TMR to ground” means “Connect a capacitor

CTMR1 between the TMR1 pin and ground” and “Connect

a capacitor CTMR2 between the TMR2 pin and ground”.

References to multiple pin names with no suffix are meant

to describe functionality within a channel but apply to both

channels. These references occur for the following cases:

1. Connecting two pins together: “Tie FAULT to DISABLE”

means “Tie FAULT1 to DISABLE1” and “Tie FAULT2 to

DISABLE2”.

2. Referring to differential voltages: “SENSE to OUT”

means “SENSE1 to OUT1” and “SENSE2 to OUT2”.

3. Causation: “The VALID pins pull low when their V1-V2

supplies have been validated” means “The VALID1 pin

pulls low when the V1 supply has been validated” and

“The VALID2 pin pulls low when the V2 supply has

been validated”.

LTC4421 DATA SHEET NOMENCLATURE

LTC4413 Datasheet(PDF) 5 Page - Analog Devices

LTC4413 Datasheet(HTML) 5 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Datasheet Download

Link URL