參數(shù)資料
型號(hào)： LTC4227IUFD-2#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 電源管理
英文描述： POWER SUPPLY MANAGEMENT CKT, PQCC20
封裝： 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-20
文件頁(yè)數(shù)： 17/20頁(yè)
文件大小： 307K
代理商： LTC4227IUFD-2#PBF
LTC4227-1/LTC4227-2
6
422712f
HGATE Pull-Up Current
vs Temperature
TMR Pull-Up Current
vs Temperature
PWRGD, FAULT Output Low
Voltage vs Current
Typical perForMance characTerisTics T
A = 25°C, VIN = 12V, unless otherwise noted.
pin FuncTions
CPO1, CPO2: Charge Pump Output. Connect a capacitor
from CPO1 or CPO2 to the corresponding IN1 or IN2 pin.
The value of this capacitor is approximately 10
× the gate
capacitance (CISS) of the external MOSFET for ideal diode
control. The charge stored on this capacitor is used to pull
up the gate during a fast turn-on. Leave this pin open if
fast turn-on is not needed.
DGATE1, DGATE2: Ideal Diode MOSFET Gate Drive Out-
put. Connect this pin to the gate of an external N-channel
MOSFET for ideal diode control. An internal clamp limits
the gate voltage to 12V above and a diode voltage below
IN.Duringfastturn-on,a1.5Apull-upchargesDGATEfrom
CPO. During fast turn-off, a 1.5A pull-down discharges
DGATE to IN.
D2ON: On Control Input. A falling edge turns on the
external ideal diode MOSFET in the IN2 supply path and
a rising edge turns it off. Connect this pin to an external
resistive divider from IN1 to make IN1 the higher priority
input supply when IN1 and IN2 are equal.
EN(UFDPackage):EnableInput.Groundthispintoenable
Hot Swap control. If this pin is pulled high, the MOSFET
is not allowed to turn on. A 10A current source pulls this
pin up to a diode below INTVCC. Upon EN going low when
ON is high, an internal timer provides a 100ms start-up
delay for debounce, after which the fault is cleared.
Exposed Pad (UFD Package): Exposed pad may be left
open or connected to device ground.
FAULT (UFD Package): Fault Status Output. Open-drain
output that is normally pulled high by a 10A current
source to a diode below INTVCC. It may be pulled above
INTVCC using an external pull-up. It pulls low when the
circuit breaker is tripped after an overcurrent fault timeout.
Leave open if unused.
GND: Device Ground.
TEMPERATURE (°C)
–50
–9.0
HGATE
PULL-UP
CURRENT
(A)
–9.5
–10.0
–10.5
–11.0
–25
0
25
50
422712 G10
75
100
TEMPERATURE (°C)
–50
–97
TMR
PULL-UP
CURRENT
(A)
–98
–99
–100
–101
–103
–25
0
25
50
422712 G11
75
100
–102
CURRENT (mA)
0
OUTPUT
LOW
VOL
TAGE
(V)
0.4
0.6
4
422712 G12
0.2
0
1
2
3
5
0.8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4228-1 制造商:LINER 制造商全稱(chēng):Linear Technology 功能描述:Dual Ideal Diode and Hot Swap Controller
LTC4228CGN-1#PBF 功能描述:IC HOT SWAP CTRLR 28SSOP RoHS:是 類(lèi)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(lèi)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(lèi)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)
LTC4228CGN-1#TRPBF 功能描述:IC HOT SWAP CTRLR 28SSOP RoHS:是 類(lèi)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(lèi)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(lèi)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)
LTC4228CGN-2#PBF 功能描述:IC HOT SWAP CTRLR 28SSOP RoHS:是 類(lèi)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(lèi)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(lèi)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)
LTC4228CGN-2#TRPBF 功能描述:IC HOT SWAP CTRLR 28SSOP RoHS:是 類(lèi)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(lèi)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(lèi)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)
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