ltc4413edd-trpbf Linear Technology Corporation, ltc4413edd-trpbf Datasheet

ltc4413edd-trpbf

Manufacturer Part Number

ltc4413edd-trpbf

Description

Dual 2.6a, 2.5v To 5.5v, Ideal Diodes In 3mm ? 3mm Dfn

Manufacturer

Linear Technology Corporation

Datasheet

1.LTC4413EDD-TRPBF.pdf (12 pages)

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FEATURES

TYPICAL APPLICATIO

APPLICATIO S

■

All other trademarks are the property of their respective owners.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

2-Channel Ideal Diode ORing or Load Sharing

Low Loss Replacement for ORing Diodes

Low Forward ON Resistance (100mΩ Max at 3.6V)

Low Reverse Leakage Current (1µA Max)

Small Regulated Forward Voltage (28mV Typ)

2.5V to 5.5V Operating Range

2.6A Maximum Forward Current

Internal Current Limit and Thermal Protection

Slow Turn-On/Off to Protect Against Inductive

Source Impedance-Induced Voltage Spiking

Ultralow Quiescent Current Consumption, Low

Power Alternative to the LTC4413-1

Status Output to Indicate if Selected Channel is

Conducting

Programmable Channel ON/OFF

Low Profile (0.75mm) 10-Lead 3mm × 3mm DFN

Package

Battery and Wall Adapter Diode ORing in Handheld

Products

Backup Battery Diode ORing

Power Switching

USB Peripherals

Uninterruptable Supplies

(0V TO 5.5V)

ADAPTER

WALL

10µF

BAT

ENBA

GND

ENBB

INB

INA

CONTROL CIRCUIT

LTC4413

OUTB

OUTA

STAT

470k

4413 TA01

4.7µF

STAT IS HIGH WHEN

BAT IS SUPPLYING

LOAD CURRENT

TO LOAD

Ideal Diodes in 3mm × 3mm DFN

DESCRIPTIO

The LTC

capable of supplying up to 2.6A from input voltages be-

tween 2.5V and 5.5V. Each ideal diode uses a 100mΩ

P-channel MOSFET that independently connects INA to

OUTA and INB to OUTB. During normal forward operation

the voltage drop across each of these diodes is regulated

to as low as 28mV. Quiescent current is less than 40µA for

diode currents up to 1A. If either of the output voltages

exceeds its respective input voltages, that MOSFET is turned

off and less than 1µA of reverse current will flow from OUT

to IN. Maximum forward current in each MOSFET is lim-

ited to a constant 2.6A and internal thermal limiting cir-

cuits protect the part during fault conditions.

Two active-high control pins independently turn off the

two ideal diodes contained within the LTC4413, control-

ling the operation mode as described by Table 1. When the

selected channel is reverse biased, or the LTC4413 is put

into low power standby, a status signal indicates this con-

dition with a low voltage.

A 9µA open-drain STAT pin is used to indicate conduction

status. When terminated to a positive supply through a 470k

resistor, the STAT pin can be used to indicate that the se-

lected diode is conducting with a HIGH voltage. This signal

can also be used to drive an auxiliary P-channel MOSFET

power switch to control a third alternate power source when

the LTC4413 is not conducting forward current.

The LTC4413 is housed in a 10-lead DFN package.

4413 contains two monolithic ideal diodes, each

Dual 2.6A, 2.5V to 5.5V,

2000

1500

1000

500

LTC4413 vs 1N5817 Schottky

LTC4413

100

FWD

200

(mV)

300

1N5817

4413 TA01b

LTC4413

400

4413fa

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