參數(shù)資料
型號: LTC1473
廠商: Linear Technology Corporation
英文描述: Dual Power Management Switch Driver(雙電源管理開關(guān)驅(qū)動器)
中文描述: 雙電源管理開關(guān)驅(qū)動器(雙電源管理開關(guān)驅(qū)動器)
文件頁數(shù): 1/16頁
文件大?。?/td> 199K
代理商: LTC1473
1
LTC1473
Dual PowerPath
TM
Switch Driver
I
Power Path Management for Systems with Multiple
DC Sources
I
All N-Channel Switching to Reduce Power Losses and
System Cost
I
Switches and Isolates Sources Up to 30V
I
Adaptive High Voltage Step-Up Regulator for N-Channel
Gate Drive
I
Capacitor Inrush and Short-Circuit Current Limited
I
User-Programmable Timer to Limit Switch Dissipation
I
Small Footprint: 16-Pin Narrow SSOP
The LTC
1473 provides a power management solution for
single and dual battery notebook computers and other
portable equipment. The LTC1473 drives two sets of back-
to-back N-channel MOSFET switches to route power to the
input of the main system switching regulator. An internal
boost regulator provides the voltage to fully enhance the
logic level N-channel MOSFET switches.
The LTC1473 senses current to limit surge currents both
into and out of the batteries and the system supply
capacitor during switch-over transitions or during fault
conditions. A user-programmable timer monitors the time
the MOSFET switches are in current limit and latches them
off when the programmed time is exceeded.
A unique “2-diode mode” logic ensures system start-up
regardless of which input receives power first.
I
Notebook Computers
I
Portable Instruments
I
Handi-Terminals
I
Portable Medical Equipment
I
Portable Industrial Control Equipment
PowerPath is a trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
IN1
IN2
DIODE
TIMER
V
+
V
GG
SW
GND
GA1
SAB1
GB1
SENSE
+
SENSE
GA2
SAB2
GB2
LTC1473
C
OUT
R
SENSE
0.04
1
μ
F
1
μ
F
MMBD914LTI
1mH*
Si9926DY
MMBD2838LTI
1473 TA01
BAT1
DCIN
BAT2
INPUT OF SYSTEM
HIGH EFFICIENCY DC/DC
SWITCHING REGULATOR
(LTC1735, ETC)
FROM POWER
MANAGEMENT
μ
P
C
TIMER
4700pF
MBRD340
Si9926DY
*COILCRAFT 1812LS-105XKBC
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
N
U
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LTC1473CGN 功能描述:IC SWITCH DVR PWRPATH DUAL16SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份,工業(yè)/汽車,大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR)
LTC1473CGN#PBF 功能描述:IC SWITCH DVR PWRPATH DUAL16SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份,工業(yè)/汽車,大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR)
LTC1473CGN#TR 功能描述:IC DRIVER SWITCH DUAL 16SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份,工業(yè)/汽車,大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.154",3.90mm 寬) 供應(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR)
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