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參數(shù)資料
| 型號： | LT3581EMSE#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, PDSO16 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-16 |
| 文件頁數(shù)： | 4/36頁 |
| 文件大?。?/td> | 498K |
| 代理商： | LT3581EMSE#PBF |
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LT3581
3581f
operaTion
Refer to the State Diagram (Figure 2) for the following
description of the LT3581’s operation during a fault event.
When a fault is detected, in addition to the FAULT pin being
pulled low internally, the LT3581 also disables its CLKOUT
pin,turnsoffitspowerswitches,andtheGATEpinbecomes
high impedance. The external PMOS, M1, turns off when
the gate of M1 is pulled up to its source by the external
RGATE resistor (see Block Diagram). With the external
PMOS turned off, the power path from VIN to VOUT is cut
off, protecting power components downstream.
At the same time, a timeout sequence commences where
the SS pin is charged up to 1.8V (the SS pin will continue
charging up to 2.1V and be held there in the case of a
FAULT1eventthathasstillnotended),andthendischarged
to 50mV. This timeout period relieves the part, the PMOS,
and other downstream power components from electrical
Figure 4. Output Short Circuit Protection of the LT3581
VOUT
10V/DIV
VCLKOUT
2V/DIV
IL
2A/DIV
VFAULT
5V/DIV
3581 F04
5s/DIV
and thermal stress for a minimum amount of time as set
by the voltage ramp rate on the SS pin.
In the absence of faults, the FAULT pin is pulled high by the
external RFAULT resistor (typically 100k). Figure 4 shows
the events that accompany the detection of an output
short on the LT3581.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT3581EMSE#TRPBF | SWITCHING REGULATOR, PDSO16 |
| LT3581IDE#TRPBF | SWITCHING REGULATOR, PDSO14 |
| LT3581IMSE#TRPBF | SWITCHING REGULATOR, PDSO16 |
| LT3581IMSE#PBF | SWITCHING REGULATOR, PDSO16 |
| LT3581IDE#PBF | SWITCHING REGULATOR, PDSO14 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT3581EMSE-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:3.3A Boost/Inverting DC/DC Converter with Fault Protection |
| LT3581HDE#PBF | 制造商:Linear Technology 功能描述:IC REG MULTI CONFIG ADJ 14DFN |
| LT3581HDE#TRPBF | 制造商:Linear Technology 功能描述:IC REG MULTI CONFIG ADJ 14DFN |
| LT3581IDE#PBF | 功能描述:IC REG MULTI CONFIG ADJ 14DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
| LT3581IDE#TRPBF | 功能描述:IC REG MULTI CONFIG ADJ 14DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標準包裝:2,500 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V，1.5V，1.8V，2.5V 輸入電壓:2.7 V ~ 20 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:50mA 同步整流器:是 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬）裸露焊盤 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:10-MSOP 裸露焊盤 |
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