參數(shù)資料
型號(hào)： LTC4280CUFD#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 9/28頁(yè)
文件大?。?/td> 291K
描述： IC CONTROLLER HOT SWAP QFN-24
標(biāo)準(zhǔn)包裝： 73
類型： 熱交換控制器
應(yīng)用： 通用
內(nèi)部開(kāi)關(guān)： 無(wú)
電源電壓： 2.9 V ~ 15 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 24-WFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 24-QFN（5x4）
包裝： 管件
LTC4280
9
4280f
 PIN FUNCTIONS
SCL: Serial Bus Clock Input. Data at the SDA pin is shifted 
in or out on rising edges of SCL. This is a high impedance
pin that is generally driven by an open-collector output
from a master controller. An external pull-up resistor or
current source is required.
SDAO:  Serial  Bus  Data  Output.  Open-drain  output  for 
sending data back to the master controller or acknowledging
a write operation. Normally tied to SDAI to form the SDA
line. An external pull-up resistor or current source is
required.
SDAI: Serial Bus Data Input. A high impedance input for 
shifting in address, command or data bits. Normally tied
to SDAO to form the SDA line.
SENSE
+
: Positive Current Sense Input. Connect this pin to 
the input of the current sense resistor. Must be connected
to the same trace as V
DD
.
SENSE

: Negative Current Sense Input. Connect this pin to 
the output of the current sense resistor. This pin provides
sense voltage feedback and monitoring for the current
limit, circuit breaker and ADC.
SOURCE:  N-Channel  MOSFET  Source  and  ADC  Input. 
Connect this pin to the source of the external N-channel
MOSFET switch for gate drive return. This pin also serves as
the ADC input to monitor output voltage. The pin provides
a return for the gate pulldown circuit.
TIMER:  Start-Up  Timer  Input.  Connect  a  capacitor 
between this pin and ground to set a 12.3ms/糉 duration
for start-up, after which an overcurrent fault is logged if
the inrush is still current limited. The duration of the off
time is 600ms/糉 when overcurrent auto-retry is enabled,
resulting in a 1:50 duty cycle. An internal timer provides
a 100ms start-up time and 5 seconds auto-retry time if
this pin is tied to INTV
CC
.
UV:  Undervoltage  Comparator  Input.  Connect  this  pin 
to an external resistive divider from V
DD
. If the voltage
at this pin falls below 1.155V, an undervoltage fault is
detected and the GATE turns off. Pulling this pin below
0.4V resets all faults and allows the GATE to turn back on.
Tie to INTV
CC
 if unused.
V
DD
: Supply Voltage Input. This pin has an undervoltage 
lockout threshold of 2.84V and overvoltage lockout
threshold of 15.6V.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4280CUFD-TR 制造商:LINER 制造商全稱:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring
LTC4280CUFD-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring
LTC4280IUFD 制造商:LINER 制造商全稱:Linear Technology 功能描述:Hot Swap Controller with I2C Compatible Monitoring
LTC4280IUFD#PBF 功能描述:IC HOT SWAP CONTROLLER 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)
LTC4280IUFD#TRPBF 功能描述:IC CTLR HOT SWAP I2C MON 24QFN 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)
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