參數(shù)資料
型號(hào)： LTC4211IMS8
廠商： Linear Technology
文件頁數(shù)： 11/40頁
文件大?。?/td> 321K
描述： IC CONTROLLER HOT SWAP 8-MSOP
標(biāo)準(zhǔn)包裝： 50
類型： 熱交換控制器
應(yīng)用： 通用
內(nèi)部開關(guān)： 無
電源電壓： 2.5 V ~ 16.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 8-MSOP
包裝： 管件
LTC4211
11
4211fb
PIN FUNCTIONS   (8-Lead Package/10-Lead Package)
clamps at the GATE pin determine the gate drive voltage
(擵
GATE
 = V
GATE
  V
CC
). The charge pump produces a
minimum 4.5V of 擵
GATE
for supplies in the range of 2.7V
d V
CC
 < 4.75V. For 4.75V d V
CC
 d 12V the 擵
GATE
 is limited
by zener clamp Z1 connected between the GATE and V
CC
 
pins. The 擵
GATE
 is typically at 12V and with guaranteed
minimum value of 10V. For V
CC
 > 12V, the Zener clamp
Z2 begins to set the limitation for 擵
GATE
. Z2 clamps the
gate voltage to ground to 26V typically. The minimum Z2s
clamp voltage is 23V. This effectively sets 擵
GATE
 to 8V
minimum at V
CC
 = 15V.
SENSE (Pin 7/Pin 8): Circuit Breaker Set Pin. With a sense 
resistor placed in the power path between V
CC
 and SENSE,
the LTC4211s electronic circuit breaker trips if the voltage
across the sense resistor exceeds the thresholds set inter-
nally for the SLOW COMP and the FAST COMP, as shown
in the Block Diagram. The threshold for the SLOW COMP is
V
CB(SLOW)
 = 50mV, and the electronic circuit breaker trips
if the voltage across the sense resistor exceeds 50mV for
20約. The SLOW COMP delay is fixed in the S8/MS8 ver-
sion and adjustable in the MS version of the LTC4211. To
adjust the SLOW COMPs delay, please refer to the section
on Adjusting SLOW COMPs Response Time.
Under transient conditions where large step current
changes can and do occur over shorter periods of time,
a second (fast) comparator instead trips the electronic
circuit breaker. The threshold for the FAST COMP is set at
V
CB(FAST)
 = 150mV, and the circuit breaker trips if the
voltage across the sense resistor exceeds 150mV for
more than 300ns. The FAST COMPs delay is fixed in the
LTC4211 and cannot be adjusted. To disable the electronic
circuit breaker, connect the V
CC
 and SENSE pins together.
V
CC
 (Pin 8/Pin 9): This is the positive supply input to 
the LTC4211. The LTC4211 operates from 2.5V < V
CC
 <
16.5V, and the supply current is typically 1mA. An internal
undervoltage lockout circuit disables the device until the
voltage at V
CC
 exceeds 2.3V.
FAULT (Not available on S8/MS8, Pin 10 MS): FAULT is 
both an input and an output. Connected to this pin are an
analog comparator (COMP6) and an open-drain N-channel
FET. During normal operation, if COMP6 is driven below
1.236V, the electronic circuit breaker trips and the GATE
pin pulls low. Typically, a 10k pull-up resistor connects
to the FAULT pin. This pull-up is required to allow the
LTC4211 to begin a second timing cycle (V
FAULT
 > 1.286)
and start-up properly. This also allows the use of the
FAULT pin as a status output. Under normal operating
conditions, the FAULT output is a logic high. Two condi-
tions cause an active low on FAULT: (1) the LTC4211s
electronic circuit breaker trips because of an output short
circuit causing a fast output overcurrent transient (FAST
COMP trips circuit breaker); or (2) V
FILTER
 > 1.236V. The
FAULT output is driven to logic low and is latched logic
low until the ON pin is driven to logic low for 150約 (the
t
RESET
 duration).
FILTER (Not available S8/MS8, Pin 3 MS): Overcurrent 
Fault Timing Pin and Overvoltage Fault Set pin. With a
capacitor connected from this pin to ground, the SLOW
COMPs response time can be adjusted. In the S8/MS8
version of the LTC4211, the FILTER pin is not available
and the delay time from overcurrent detect to GATE OFF
is fixed at 20約.
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LTC4211IMS8#PBF 功能描述:IC CONTROLLER HOT SWAP 8-MSOP 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)部開關(guān):無 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 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
LTC4211IMS8#TR 功能描述:IC CONTROLLER HOT SWAP 8-MSOP RoHS:否 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)部開關(guān):無 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
LTC4211IMS8#TRPBF 功能描述:IC CONTROLLER HOT SWAP 8-MSOP 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)部開關(guān):無 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
LTC4211IS8 功能描述:IC CTRLR HOTSWAP CURR CTRL 8SOIC RoHS:否 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)部開關(guān):無 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
LTC4211IS8#PBF 功能描述:IC CONTROLLER HOT SWAP 8-SOIC 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)部開關(guān):無 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 產(chǎn)品目錄頁面:1423 (CN2011-ZH PDF)
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