參數(shù)資料
型號(hào)： LTC4240IGN
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： CompactPCI Hot Swap Controller with I2C Compatible Interface
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28
封裝： 0.150 INCH, PLASTIC, SSOP28
文件頁(yè)數(shù)： 12/28頁(yè)
文件大?。?/td> 486K
代理商： LTC4240IGN
LTC4240
12
4240f
used to turn off/on the power switches, turn on the status
LED (alerting the user that its safe to remove the plug-in
board), and assert the LOCAL_PCI_RST# signal. The I
2
C
bus is also used to read the logic signals of several device
pins: FAULT, PWRGD, RESETIN, and RESETOUT. Addi-
tionally, when a supply generates a current fault, the I
2
C
bus can be used to determine which supply generated the
fault. See Send Byte and Receive Byte sections for a full
description of all I
2
C features.
The LTC4240 supports Send Byte and Receive Byte proto-
cols. Communication is achieved using the SCL and SDA
pins (TTL compatible input thresholds). The SCL pin is the
clock input from the I
2
C bus (host) to the LTC4240 (slave).
The maximum SCL frequency is 100kHz. SDA is the
bidirectional data transfer line between the I
2
C bus and the
LTC4240. Send Byte and Receive Byte protocols are both
comprised of 2 bytes. The first byte for both is the address
byte. All communication begins with a START command.
Programming the I
2
C Address
The voltage on the ADDRIN pin determines the I
2
C ad-
dress. The ADDRIN voltage is set externally with a resistor
divider from 5V
IN
to ground (resistor placement must be
close to the pin, do not place a bypass capacitor on
ADDRIN). This voltage is fed to a 5-bit A/D and compared
against the address byte clocked in by the I
2
C bus. The 5-
bit A/D allows 32 unique LTC4240 devices to be connected
on the same I
2
C bus. 1% resistors should be used to place
the voltage at ADDRIN approximately 0.5 LSB away from
each code transition. Table 1 shows recommended resis-
tor values for each of the address code segments. The
resistor ratio for each code segment has been optimized
for best performance over the specified temperature range.
The parallel resistance for the address setting resistors
should be kept under 10k.
APPLICATIOU
W
U
U
Table 1. Suggested ADDRIN 1% Resistor Values
ADDR
RECOMMENDED ALLOWED ADDRIN
CODE ADDRIN VOLTAGE VOLTAGE RANGE
00
0.108125
01
0.264375
02
0.420625
03
0.576875
04
0.733125
05
0.889375
06
1.045625
07
1.201875
08
1.358125
09
1.514375
10
1.670625
11
1.826875
12
1.983125
13
2.139375
14
2.295625
15
2.451875
16
2.608125
17
2.764375
18
2.920625
19
3.076875
20
3.233125
21
3.389375
22
3.545625
23
3.701875
24
3.858125
25
4.014375
26
4.170625
27
4.326875
28
4.483125
29
4.639375
30
4.795625
31
4.951875
R
19(TOP)
RESISTOR
8660
2550
2550
2550
2550
2550
3830
2550
2550
1150
1020
8660
2550
2550
1130
1370
2550
2550
2550
715
1150
1150
1150
357
2550
249
1070
178
133
102
105
100
R
20(BOT)
RESISTOR
191
140
237
332
442
549
1020
806
953
499
511
4990
1690
1910
1130
1330
2800
3160
3570
1150
2100
2430
2800
1020
8660
1020
5360
1150
1150
1300
2430
10000
0.080 to 0.136
0.236 to 0.293
0.393 to 0.449
0.549 to 0.605
0.705 to 0.761
0.861 to 0.918
1.018 to 1.074
1.174 to 1.230
1.330 to 1.386
1.486 to 1.543
1.643 to 1.699
1.799 to 1.860
1.955 to 2.021
2.111 to 2.175
2.268 to 2.330
2.424 to 2.488
2.580 to 2.644
2.736 to 2.800
2.888 to 2.950
3.044 to 3.110
3.200 to 3.262
3.356 to 3.421
3.513 to 3.574
3.669 to 3.731
3.825 to 3.886
3.981 to 4.041
4.138 to 4.190
4.294 to 4.349
4.450 to 4.499
4.606 to 4.651
4.763 to 4.805
4.919 to 4.962
相關(guān)PDF資料
PDF描述
LTC4240CGN CompactPCI Hot Swap Controller with I2C Compatible Interface
LTC4244 Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244CGN-1 Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244IGN Rugged, CompactPCI Bus Hot Swap Controllers
LTC4244IGN-1 Rugged, CompactPCI Bus Hot Swap Controllers
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4240IGN#PBF 功能描述:IC CTRLR HOTSWAP CPCI I2C 28SSOP 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(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 產(chǎn)品目錄頁(yè)面:1423 (CN2011-ZH PDF)
LTC4240IGN#TR 功能描述:IC CTRLR HOT SWAP CPCI 28-SSOP RoHS:否 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(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 產(chǎn)品目錄頁(yè)面:1423 (CN2011-ZH PDF)
LTC4240IGN#TRPBF 功能描述:IC CTRLR HOTSWAP CPCI I2C 28SSOP 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(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 產(chǎn)品目錄頁(yè)面:1423 (CN2011-ZH PDF)
LTC4241 制造商:LINER 制造商全稱:Linear Technology 功能描述:PCI-Bus with 3.3V Auxiliary Hot Swap Controller
LTC4241CGN 功能描述:IC CTRLR HOTSWAP PCI 3.3V 20SSOP 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(wú) 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*