參數(shù)資料
型號: LT4256-1IS8#TRPBF
廠商: Linear Technology
文件頁數(shù): 8/16頁
文件大?。?/td> 213K
描述: IC CTRLR HOTSWAP HV LATCH 8SOIC
標(biāo)準(zhǔn)包裝: 2,500
類型: 熱交換控制器
應(yīng)用: 通用
內(nèi)部開關(guān):
電源電壓: 10.8 V ~ 80 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
LT4256-1/LT4256-2
8
425612fa
TEST CIRCUIT
TI  I G DIAGRA  S    U
W
Figure 2. UV to GATE Timing
Figure 3. V
OUT
 to PWRGD Timing
Figure 4. SENSE to GATE Timing
Figure 1
V
CC
GATE
SENSE
TIMER
PWRGD
FB
UV
48V
48k
GND
4256 F01
100pF
+
UV
4256 F02
GATE
V
OUT
 +2V
t
PLHUV
4V
V
OUT
 +2V
t
PHLUV
3.6V
V
CC
  SENSE
4256 F04
GATE
V
CC
t
PHLSENSE
55mV
APPLICATIO  S I FOR  ATIO
U
U
U
Hot Circuit Insertion
When circuit boards are inserted into a live backplane, the
supply bypass capacitors on the boards draw high peak
currents from the backplane power bus as they charge.
The transient currents can permanently damage the con-
nector pins and glitch the system supply, causing other
boards in the system to reset.
The LT4256-1/LT4256-2 are designed to turn on a boards
supply voltage in a controlled manner, allowing the board
to be safely inserted or removed from a live backplane. The
device also provides undervoltage as well as overcurrent
protection while a power good output signal indicates
when the output supply voltage is ready with a high output.
Power-Up Sequence
An external N-channel MOSFET pass transistor (Q1) is
placed in the power path to control the power up of the
supply voltage (Figure 5). Resistor R5 provides current
detection and capacitor C1 controls the GATE slew rate.
Resistor R7 compensates the current control loop while
R6 prevents high frequency oscillations in Q1.
FB
4256 F03
PWRGD
1V
t
PLHFB
4.45V
1V
t
PHLFB
3.99V
相關(guān)PDF資料
PDF描述
LTC1392IS8#TRPBF IC DATA ACQ SYSTEM 10BIT 8-SOIC
LTC1421ISW-2.5#PBF IC CONTROLLER HOT SWAP 24-SOIC
LTC1422CN8 IC CONTROLLER HOT SWAP 8-DIP
LTC1642CGN#TRPBF IC CONTROLLER HOTSWAP ADJ 16SSOP
LTC1643AL-1CGN#PBF IC CTRLR HOTSWAP PCI BUS 16SSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LT4256-2 制造商:LINER 制造商全稱:Linear Technology 功能描述:Positive High Voltage Hot Swap Controllers
LT4256-2CS8 功能描述:IC CTRLR HOTSWAP HV AUTO 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
LT4256-2CS8#PBF 功能描述:IC CTLR HOTSWAP HV AUTO 8SOIC 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
LT4256-2CS8#PBF 制造商:Linear Technology 功能描述:HOT SWAP CONTROLLER, 48V, SOIC-8
LT4256-2CS8#TR 功能描述:IC CTRLR HOTSWAP HV AUTO 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