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參數(shù)資料
| 型號： | LTC4413EDD1#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO10 |
| 封裝： | 3 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 190K |
| 代理商： | LTC4413EDD1#PBF |
LTC4413-1/LTC4413-2
14
441312fb
In the event that a low power external PFET is used for
the external overvoltage protection device, care must be
taken to limit the power dissipation in the external PFET.
The operation of this circuit is identical to the “Automatic
Switchover from a Battery to a Wall Adapter” application
shown on the rst page of this data sheet. Here, however,
the ideal diode from INA to INB is disabled by pulling up
on ENBA whenever an overvoltage condition is detected.
This channel is turned-off using a resistor connected to
OVP along with a 5.6V zener diode, ensuring the absolute
maximum voltage at ENBA is not exceeded during an
overvoltage event. When the overvoltage condition ends,
the OVP voltage drops slowly, depending on the gate
charge of the external PFET. This causes the external PFET
to linger in a high RDS(ON) region where it can dissipate
a signicant amount of heat depending on the load cur-
rent. To avoid dissipating heat in the external PFET, this
application delays turning on the ideal diode from INA to
OUTA, until the gate voltage of the external PFET drops
below VENBIL, where the external PFET should safely be
out of the high RDS(ON) region. This soft-start scheme can
be used on either channel of the LTC4413-2.
APPLICATIONS INFORMATION
INA
IDEAL
FDR8508
LTC4413-2
INB
IDEAL
BAT
D2
5.6V
ENBA
GND
ENBB
OUTA
OUTB
STAT
RSTAT
470k
COUT
4.7μF
441312 F07
STAT
STAT IS HIGH WHEN WALL ADAPTER IS
SUPPLYING LOAD CURRENT
OVP IS HIGH WHEN WALL ADAPTER
VOLTAGE > 6V
C1: C0805C106K8PAC
C2: C0403C103K8PAC
COUT: C1206C475K8PAC
OVP
TO LOAD
VCC
OVI
OVP
+
C1
10μF
C2
10nF
D1
OPTIONAL
WALL
ADAPTER
INPUT
1Ω
0.1μF
RENBA
560k
Figure 7
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4413EDD-2#PBF | 功能描述:IC IDEAL DIODE DUAL 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 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(shí)間 - 開啟:100ns 延遲時(shí)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) |
| LTC4413EDD-2#TRPBF | 功能描述:IC IDEAL DIODE DUAL 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 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(shí)間 - 開啟:100ns 延遲時(shí)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) |
| LTC4413EDD-2PBF | 制造商:Linear Technology 功能描述:Dual Ideal Diodes 2.6A 2.5-5.5V DFN10EP |
| LTC4413EDDPBF | 制造商:Linear Technology 功能描述:2-ch Ideal Diode OR Contr, LTC4413EDD |
| LTC4414EMS8 | 制造商:Linear Technology 功能描述:Power Controller 8-Pin MSOP |
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