Datasheet > LTC4412HV

LTC4412HV

更新时间： 2024-11-14 14:58:15

品牌	Logo	应用领域
亚德诺 - ADI		控制器
页数	文件大小	规格书
14页	417K
描述
采用 ThinSOT 封装的 36V、低损耗 PowerPath? 控制器

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中文翻译

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LTC4412HV 数据手册

LTC4412HV

36V, Low Loss PowerPath

Controller in ThinSOT

FEATURES

DESCRIPTION

The LTC^®4412HV controls an external P-channel MOSFET

to create a near ideal diode function for power switchover

or load sharing. This permits highly efficient OR’ing of

multiple power sources for extended battery life and low

self- heating. When conducting, the voltage drop across

the MOSFET is typically 20mV. For applications with a

wall adapter or other auxiliary power source, the load

is automatically disconnected from the battery when the

auxiliary source is connected. Two or more LTC4412HVs

may be interconnected to allow load sharing between

multiple batteries or charging of multiple batteries from

a single charger. The LTC4412HV is an extended supply

and temperature range version of the LTC4412.

■

Very Low Loss Replacement for Power Supply

OR’ing Diodes

■

3V to 36V AC/DC Adapter Voltage Range

■

–40°C to 125°C Operating Temperature Range

■

Minimal External Components

■

Automatic Switching Between DC Sources

■

Simpliﬁes Load Sharing with Multiple Batteries

■

Low Quiescent Current: 11µA

■

2.5V to 36V Battery Voltage Range

■

Reverse Battery Protection

■

Drives Almost Any Size MOSFET for Wide Range of

Current Requirements

■

MOSFET Gate Protection Clamp

■

Manual Control Input

The wide supply operating range supports operation from

one to eight Li-Ion cells in series. The low quiescent cur-

rent (11µA typical) is independent of the load current. The

gate driver includes an internal voltage clamp for MOSFET

protection.

■

Low Proﬁle (1mm) SOT-23 (ThinSOT ) Package

■

AEC-Q100 Qualiﬁed for Automotive Applications

APPLICATIONS

The STAT pin can be used to enable an auxiliary P-channel

MOSFET power switch when an auxiliary supply is

detected. This pin may also be used to indicate to a micro

controller that an auxiliary supply is connected. The con-

trol (CTL) input enables the user to force the primary

MOSFET off and the STAT pin low.

■

Industrial and Automotive Applications

■

Notebook and Handheld Computers

■

USB-Powered Peripherals

■

Uninterruptable Power Supplies

■

Logic Controlled Power Switch

All registered trademarks and trademarks are the property of their respective owners.

The LTC4412HV is available in a low profile (1mm)

SOT-23 package.

LTC4412HV vs Schottky Diode Forward Voltage Drop

TYPICAL APPLICATION

CONSTANT

1N5819

WALL

ADAPTER

INPUT

FDN306P

TO LOAD

LTC4412HV

BATTERY

CELL(S)

OUT

LTC4412HV

470k

SENSE

CONSTANT

VOLTAGE

GND GATE

CTL STAT

SCHOTTKY

DIODE

STATUS OUTPUT

LOW WHEN WALL

ADAPTER PRESENT

4412HV F01

0.02

0.5

4412HV F01b

Figure 1. Automatic Switchover of Load Between a Battery and a Wall Adapter

FORWARD VOLTAGE (V)

Rev. B

Document Feedback

For more information www.analog.com

12 3 4 5 6 7...14

中文翻译

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与LTC4412HV相关器件

型号	品牌	获取价格	描述	数据表
LTC4412HVIS6	Linear	获取价格	36V, Low Loss PowerPathTM Controller in ThinSOT
LTC4412HVIS6#PBF	Linear	获取价格	LTC4412HV - 36V, Low Loss PowerPath Controller in ThinSOT; Package: SOT; Pins: 6; Temperat
LTC4412HVIS6#TR	Linear	获取价格	LTC4412HV - 36V, Low Loss PowerPath Controller in ThinSOT; Package: SOT; Pins: 6; Temperat
LTC4412HVIS6#TRM	Linear	获取价格	LTC4412HV - 36V, Low Loss PowerPath Controller in ThinSOT; Package: SOT; Pins: 6; Temperat
LTC4412HVIS6#TRMPBF	Linear	获取价格	暂无描述
LTC4412HVIS6#TRPBF	Linear	获取价格	LTC4412HV - 36V, Low Loss PowerPath Controller in ThinSOT; Package: SOT; Pins: 6; Temperat
LTC4412IS6#TR	Linear	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN
LTC4412IS6#TRM	Linear	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, 1 MM HEIGHT, PLASTIC, MO-193, TSOT-23, 6 PIN
LTC4412IS6#TRMPBF	Linear	获取价格	LTC4412 - Low Loss PowerPath Controller in ThinSOT; Package: SOT; Pins: 6; Temperature Ran
LTC4412IS6#TRPBF	Linear	获取价格	LTC4412 - Low Loss PowerPath Controller in ThinSOT; Package: SOT; Pins: 6; Temperature Ran

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