參數(shù)資料
型號： LT3579EFE-1#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, PDSO20
封裝： 4.40 MM, LEAD FREE, PLASTIC, TSSOP-20
文件頁數(shù)： 4/40頁
文件大小： 503K
代理商： LT3579EFE-1#TRPBF
LT3579/LT3579-1
12
35791f
operaTion
When a fault is detected, in addition to the FAULT pin
being pulled low internally, the LT3579 also disables
its CLKOUT pin, turns off its power switches, and the
GATE pin becomes high impedance (refer to the State
Diagram). 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 FAULT1 event still existing), and then discharged to
50mV. This timeout period relieves the part, the PMOS,
and other downstream power components from electrical
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). Figures 4
and 5 show the events that accompany the detection of
an output short on the LT3579.
Figure 4. Output Short Circuit Protection of the LT3579
10s/DIV
VOUT
10V/DIV
IL
5A/DIV
FAULT
5V/DIV
CLKOUT
2V/DIV
35791 F04
50ms/DIV
SS
2V/DIV
IL
5A/DIV
FAULT
5V/DIV
GATE
5V/DIV
35791 F05
Figure 5. Continuous Output Short Showing FAULT Timeout Cycle
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT3579EFE-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:6A Boost/Inverting DC/DC Converter with Fault Protection
LT3579EFE-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:6A Boost/Inverting DC/DC Converter with Fault Protection
LT3579EUFD#PBF 功能描述:IC REG MULTI CONFIG SYNC 20QFN 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(biāo)準(zhǔn)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
LT3579EUFD#TRPBF 功能描述:IC REG MULTI CONFIG SYNC 20QFN 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(biāo)準(zhǔn)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
LT3579EUFD-1#PBF 功能描述:IC REG MULTI CONFIG SYNC 20QFN 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(biāo)準(zhǔn)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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