參數(shù)資料
型號(hào)： LTC4267IDHC
廠商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 1 A SWITCHING CONTROLLER, 240 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 5 X 3 MM, PLASTIC, MO-229-WJED-1, DFN-16
文件頁(yè)數(shù)： 27/32頁(yè)
文件大?。?/td> 1975K
代理商： LTC4267IDHC
LTC4267
27
4267f
with minimum trace lengths and minimum capacitance.
In a nonisolated application, R1, and R2 should be placed
as close as possible to the V
FB
pin of the LTC4267 and
C
C
should be placed close to the I
TH
/RUN pin of the
LTC4267.
In essence, a tight overall layout of the high current loop
and careful attention to current density will ensure suc-
cessful operation of the LTC4267 in a PD.
The PD interface section of the LTC4267 is relatively im-
mune to layout problems. Excessive parasitic capacitance
on the R
CLASS
pin should be avoided. If using the DHC
package, include an electrically isolated heat sink to which
the exposed pad on the bottom of the package can be
soldered. For optimum thermal performance, make the
heat sink as large as possible. The SIGDISA pin is adjacent
to the V
PORTP
pin and any coupling, whether resistive
APPLICATIOU
W
U
U
or capacitive may inadvertently disable the signature
resistance. To ensure consistent behavior, the SIGDISA
pin should be electrically connected and not left floating.
Voltages in a PD can be as large as –57V, so high voltage
layout techniques should be employed.
Electro Static Discharge and Surge Protection
The LTC4267 is specified to operate with an absolute
maximum voltage of –100V and is designed to tolerate
brief overvoltage events. However, the pins that interface
to the outside world (primarily V
PORTN
and V
PORTP
) can
routinely see peak voltages in excess of 10kV. To protect
the LTC4267, it is highly recommended that a transient
voltage suppressor be installed between the diode bridge
and the LTC4267 (D3 in Figure 2).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4267IDHC#PBF 功能描述:IC POE 802.3AF INTERFACE 16-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類(lèi)型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤(pán) 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱(chēng):935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4267IDHC#TRPBF 功能描述:IC POE 802.3AF INTERFACE 16-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類(lèi)型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤(pán) 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱(chēng):935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4267IDHC-1#PBF 制造商:Linear Technology 功能描述:Bulk
LTC4267IDHC-3#PBF 功能描述:IC POE 802.3AF W/REG 16-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類(lèi)型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤(pán) 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱(chēng):935286452157SC18IS600IBSSC18IS600IBS-ND
LTC4267IDHC-3#TRPBF 功能描述:IC POE 802.3AF INTERFACE 16-DFN RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類(lèi)型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤(pán) 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱(chēng):935286452157SC18IS600IBSSC18IS600IBS-ND
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