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參數(shù)資料
| 型號： | LT4351 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | MOSFET Diode-OR Controller |
| 中文描述： | MOSFET的二極管或控制器 |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 270K |
| 代理商： | LT4351 |
LT4351
6
sn4351 4351fs
PIU
OV (Pin 6):
Overvoltage Shutdown Pin. This pin is used
for input overvoltage detection. It is connected to a
resistive divider from V
IN
. When the voltage exceeds the
OV threshold (0.3V), GATE is pulled to GND disabling
power transfer. In addition, the FAULT pin pulls low
indicating a fault. Overvoltage detection has filtering on it
to prevent false triggering. The filtering depends on the
level of overdrive. Filtered tripping will occur when OV
exceeds 0.3V. If OV exceeds 0.33V, the gate immediately
turns off (no filtering). If overvoltage detection is not
required, ground the OV pin. See Applications Informa-
tion for further information.
UV (Pin 7):
Undervoltage Shutdown Pin. This pin is used
for the undervoltage detect function. It is connected to a
resistive divider from V
IN
. When the voltage is below the
UV threshold, GATE pulls to GND disabling power transfer.
In addition, the FAULT pin pulls low indicating a fault. When
the UV pin voltage drops below the threshold, a 10
μ
A current
is pulled from the divider to provide hysteresis. If under-
voltage detection is not required, tie the UV pin to a voltage
greater than 320mV and not greater than V
IN
. Do not force
more than 9V on UV due to an internal clamp. See Appli-
cations Information for further information.
FAULT (Pin 8):
Fault Comparator Status Pin. This pin pulls
low when a fault occurs. A fault has occured if the UV pin
is below threshold or the OV pin is above threshold. The
FAULT pin low indicates that there is a problem with the
V
IN
(source) supply. GATE is pulled to GND during a fault,
disabling the MOSFET(s) and prohibits common supply
contamination. If the GATE pin goes to compliance (GATE
equals the lesser of V
DD
– 2.3V or OUT + 7.4V) and V
IN
is
greater than OUT by more than 0.21V, FAULT turns on as
an indicator that the MOSFETs are probably not function-
ing. Leave this pin open if not used.
STATUS (Pin 9):
MOSFET Status Pin. This pin pulls low
when GATE is above V
IN
by more than 0.7V and V
IN
is
greater than OUT by 15mV. This indicates the MOSFET is
on. Leave this pin open if not used.
OUT (Pin 10):
Common Supply Pin. This pin is connected
to the supply common and is used in conjunction with V
IN
as one input controlling the MOSFET(s).
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| LT4351CMS | 功能描述:IC CTRLR MOSFET DIODE-OR 10MSOP RoHS:否 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) |
| LT4351CMS#PBF | 功能描述:IC CTLR MOSFET DIODE-OR 10MSOP 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) |
| LT4351CMS#TR | 功能描述:IC CTRLR MOSFET DIODE-OR 10MSOP RoHS:否 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) |
| LT4351CMS#TRPBF | 功能描述:IC CTRLR MOSFET DIODE-OR 10MSOP 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) |
| LT4351IMS | 功能描述:IC CTRLR MOSFET DIODE-OR 10MSOP RoHS:否 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) |
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