参数资料
| 型号： | LTC4413EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC IDEAL DIODE DUAL 10-DFN |
| 标准包装： | 121 |
| 应用： | 手持/移动设备 |
| FET 型： | P 沟道 |
| 输出数： | 2 |
| 内部开关： | 是 |
| 延迟时间 - 开启： | 11µs |
| 延迟时间 - 关闭： | 2µs |
| 电源电压： | 2.5 V ~ 5.5 V |
| 电流 - 电源： | 25µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1338 (CN2011-ZH PDF) |
LTC4413
Dual 2.6A, 2.5V to 5.5V,
Ideal Diodes in 3mm × 3mm DFN
FEATURES
DESCRIPTION
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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 Pro?le (0.75mm) 10-Lead 3mm × 3mm DFN
Package
The LTC ? 4413 contains two monolithic ideal diodes,
each capable of supplying up to 2.6A from input voltages
between 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 ?ow
from OUT to IN. Maximum forward current in each MOSFET
is limited to a constant 2.6A and internal thermal limiting
circuits 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
APPLICATIONS
put into low power standby, a status signal indicates this
condition with a low voltage.
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Battery and Wall Adapter Diode ORing in Handheld
Products
Backup Battery Diode ORing
Power Switching
USB Peripherals
Uninterruptable Supplies
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
selected 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
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
when the LTC4413 is not conducting forward current.
The LTC4413 is housed in a 10-lead DFN package.
LTC4413 vs 1N5817 Schottky
2000
V CC
ENBA
GND
ENBB
LTC4413
STAT
470k
STAT IS HIGH WHEN
BAT IS SUPPLYING
1500
WALL
ADAPTER
(0V TO 5.5V)
10μF
INB
OUTB
LOAD CURRENT
1000
LTC4413
CONTROL CIRCUIT
500
1N5817
INA
OUTA
TO LOAD
BAT
4.7μF
4413 TA01
0
0
100
200
V FWD (mV)
300
400
4413 TA01b
4413fc
1
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