LTC4413EDD Linear Technology, LTC4413EDD Datasheet

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LTC4413EDD

Manufacturer Part Number
LTC4413EDD
Description
IC,Power Control/Management,CMOS,LLCC,10PIN,PLASTIC
Manufacturer
Linear Technology
Datasheets

Specifications of LTC4413EDD

Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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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
U
BAT
ENBA
GND
ENBB
INB
INA
CONTROL CIRCUIT
LTC4413
U
OUTB
OUTA
STAT
V
CC
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
0
0
LTC4413 vs 1N5817 Schottky
U
LTC4413
100
V
FWD
200
(mV)
300
1N5817
4413 TA01b
LTC4413
400
4413fa
1

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LTC4413EDD Summary of contents

Page 1

... Products ■ Backup Battery Diode ORing Power Switching ■ ■ USB Peripherals ■ Uninterruptable Supplies , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. U TYPICAL APPLICATIO ENBA LTC4413 GND ENBB WALL INB ADAPTER ( ...

Page 2

... RATINGS PACKAGE/ORDER ORDER PART NUMBER LTC4413EDD Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: Consult LTC Marketing for parts specified with wider operating temperature ranges. The ● ...

Page 3

... ENBHYST I ENB Inputs Pull-Down Current ENB PowerPath is a trademark of Linear Technology Corporation. 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. ...

Page 4

LTC4413 W U TYPICAL PERFOR A CE CHARACTERISTICS I vs Temperature (V = 3.5V – 120 TEMPERATURE (°C) 4413 G04 R vs Temperature (V FWD 160 140 RFWD I = 100mA ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Response to 800mA Load Step in 80µs IN 200mV/DIV OUT 200mV/DIV I OUT 200mA/DIV 4413 G17 20µs/DIV ENB Threshold vs Temperature 550 V IH 500 450 V IL 400 350 300 –40 0 ...

Page 6

LTC4413 CTIO S INA (Pin 1): Primary Ideal Diode Anode and Positive Power Supply. Bypass INA with a ceramic capacitor of at least 1µF. 1Ω snub resistors in series with a capacitor and higher valued ...

Page 7

W BLOCK DIAGRA INA 1 OVER CURRENT – O.5V ENBA + 2 3µA GND 3 INB 5 OVER CURRENT – O.5V ENBB + 4 3µA PA – + – UVLO + OUTA (MAX) OUTB (MAX) V GATEA – ...

Page 8

LTC4413 U OPERATIO The LTC4413 is described with the aid of the Block Diagram (Figure 1). Operation begins when the power source rises above the undervoltage INA INB lockout (UVLO) voltage of 2.4V and either of ...

Page 9

U OPERATIO For short durations after the output is shorted, the current may exceed I . The magnitude of this peak short-circuit MAX current can be large, depending on the load current imme- diately before the short circuit occurs. During ...

Page 10

LTC4413 U U APPLICATIO S I FOR ATIO MP1 FDR8508 WALL ADAPTER C1 10µF R1 1000k 2 ENBA 4 R2 ENBB STAT 200k 3,11 GND LTC4413 IDEAL 1 INA OUTA BATA 1-CELL Li-Ion IDEAL 5 INB OUTB BATB 1-CELL Li-Ion ...

Page 11

... Figure 6 WALL ADAPTER Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights current until both battery voltages are equal, then both are charged ...

Page 12

... Low Loss Ideal Diode in ThinSOT Load Sharing LTC4412/LTC4412HV PowerPath Controllers in ThinSOT LTC4413-1/LTC4413-2 Dual 2.6A, 2.5V to 5.5V Fast Ideal Diodes in 3mm × 3mm DFN ThinSOT is a trademark of Linear Technology Corporation. Linear Technology Corporation 12 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● ...

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