參數(shù)資料
型號(hào)： LTC4215IUFD-2#TR
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
封裝： 4 X 5 MM, PLASTIC, MO-220, QFN-24
文件頁(yè)數(shù)： 27/28頁(yè)
文件大小： 261K
代理商： LTC4215IUFD-2#TR
LTC4215/LTC4215-2
8
4215fe
PIN FUNCTIONS
ADIN (QFN Package): ADC Input. A voltage between 0V
and 1.235V applied to this pin is measured by the onboard
ADC. Tie to ground if unused.
ADR0, ADR1, ADR2 (ADR1, ADR2 Available in QFN Pack-
age): Serial Bus Address Inputs. Tying these pins to ground,
to the INTVCC pin or open congures one of 27 possible
addresses. See Table 1 in Applications Information.
ALERT: Fault Alert Output. Open-drain logic output that
is pulled to ground when a fault occurs to alert the host
controller. A fault alert is enabled by the ALERT register.
See Applications Information. Tie to ground if unused.
EN (QFN Package): Enable Input. Ground this pin to
indicate a board is present and enable the N-channel
MOSFET to turn on. When this pin is high, the MOSFET
is not allowed to turn on. An internal 10μA current source
pulls up this pin. Transitions on this pin are recorded in
the Fault register. A high-to-low transition activates the
logic to read the state of the ON pin and clear Faults. See
Applications Information.
EXPOSED PAD (Pin 25, QFN Package): Exposed Pad may
be left open or connected to device ground.
FB: Foldback Current Limit and Power Good Input. A
resistive divider from the output is tied to this pin. When
the voltage at this pin drops below 1.235V, power is not
considered good. The power bad condition may result in the
GPIO pin pulling low or going high impedance depending
on the conguration of control register bits A6 and A7.
Also a power bad fault is logged in this condition if the
LTC4215 has nished the start-up cycle and the GATE pin
is high. See Applications Information. The start-up current
limit folds back from a 25mV sense voltage to 10mV as
the FB pin voltage falls from 0.6V to 0V. Foldback is not
active once the part leaves start-up and the current limit
is increased to 75mV.
GATE: Gate Drive for External N-Channel MOSFET. An
internal 20μA current source charges the gate of the
MOSFET. Often no compensation capacitor is required on
the GATE pin, but a resistor and capacitor network from
this pin to ground may be used to set the turn-on output
voltage slew rate. See Applications Information. During
turn-off there is a 1mA pulldown current. During a short
circuit or undervoltage lockout (VDD or INTVCC), a 450mA
pulldown current source between GATE and SOURCE is
activated.
GND: Device Ground.
GPIO: General Purpose Input/Output. Open-drain logic
output or logic input. Defaults to an output set to pull
low to indicate power is not good. Congure according
to Table 2 and 3.
INTVCC: Low Voltage Supply Decoupling Output. Connect
a 0.1μF capacitor from this pin to ground.
ON: On Control Input. A rising edge turns on the external
N-channel MOSFET and a falling edge turns it off. This
pin also congures the state of the FET On bit in the con-
trol register (and hence the external MOSFET) at power
up. For example, if the ON pin is tied high, then the FET
On bit (A3 in Table 2) goes high 100ms after power-up.
Likewise if the ON pin is tied low then the part remains
off after power-up until the FET On bit is set high using
the I2C bus. A high-to-low transition on this pin clears
the fault register.
OV (QFN Package): Overvoltage Comparator Input. Con-
nect this pin to an external resistive divider from VDD. If
the voltage at this pin rises above 1.235V, an overvoltage
fault is detected and the GATE turns off. Tie to GND if
unused.
相關(guān)PDF資料
PDF描述
LTC4215IUFD-2#TRPBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
LTC4215CUFD-2#TRPBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
LTC4215IUFD-2 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
LTC4215IUFD-3#TR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
LTC4215CUFD-3#TRPBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4215IUFD-3#PBF 功能描述:IC CTRLR HOT SWAP 24-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤(pán) 產(chǎn)品目錄頁(yè)面:1423 (CN2011-ZH PDF)
LTC4215IUFD-3#TRPBF 功能描述:IC CTRLR HOT SWAP 24-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:119 系列:- 類型:熱交換控制器 應(yīng)用:通用型，PCI Express? 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:- 電源電壓:3.3V，12V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:80-TQFP 供應(yīng)商設(shè)備封裝:80-TQFP（12x12） 包裝:托盤(pán) 產(chǎn)品目錄頁(yè)面:1423 (CN2011-ZH PDF)
LTC4216 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Hot Swap Controller
LTC4216CDE 制造商:Linear Technology 功能描述:Hot Swap Controller 1-CH 6V 12-Pin DFN EP
LTC4216CDE#PBF 功能描述:IC CTLR HOT SWAP 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 類型:熱交換控制器 應(yīng)用:-48V 遠(yuǎn)程電力系統(tǒng)，AdvancedTCA ? 系統(tǒng)，高可用性 內(nèi)部開(kāi)關(guān):無(wú) 電流限制:可調(diào) 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*