參數(shù)資料
型號： LTC4240
廠商： Linear Technology Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： CompactPCI Hot Swap Controller with I2C Compatible Interface
中文描述： CompactPCI熱插拔控制器的I2C兼容接口
文件頁數(shù)： 1/28頁
文件大?。?/td> 486K
代理商： LTC4240
LTC4240
1
4240f
FEATURES
DESCRIPTIOU
The LTC
4240 is a Hot Swap
TM
controller that allows a board
to be safely inserted and removed from a live CompactPCI
bus slot. The LTC4240 has a built-in 2-wire I
2
C compatible
interface to allow software control and monitoring of
device function and power supply status. Two external
N-channel transistors control the 3.3V and 5V supplies,
while two internal switches control the –12V and 12V
supplies. Electronic circuit breakers protect all four supplies
against overcurrent faults. The PWRGD output indicates
when all of the supply voltages are within tolerance. The
OFF/ON pin is used to cycle the board power or reset the
circuit breaker. The I
2
C interface allows the user to turn the
device off or on, set RESETOUT, turn on the status LED
driver and ignore 12V, –12V faults. It also allows the user
to read the status of the FAULT, RESETIN, RESETOUT,
PWRGD, PRSNT1# and PRSNT2# pins. Under a fault
condition, the I
2
C interface can also be used to determine
which of the four supplies generated the fault. The LTC4240
is available in a 28-pin narrow SSOP package.
APPLICATIU
TYPICAL APPLICATIOU
I
Hot Board Insertion into CompactPCI Bus
I
Electronic Circuit Breaker
I
Allows Safe Board Insertion and Removal from a
Live CompactPCI
TM
Bus
I
I
2
C
TM
Compatible 2-Wire Interface
I
PRECHARGE Output Biases I/O Pins During Card
Insertion and Extraction
I
Controls 3.3V, 5V, 12V and –12V Supplies
I
Foldback Current Limit with Circuit Breaker
I
LOCAL_PCI_RST# Logic On-Board
I
QuickSwitch
Enable Output
I
Status LED Driver
I
User Programmable Supply Voltage Power-Up Rate
I
Registers Individual Supply Faults
I
Available in a 28-Pin Narrow SSOP Package
CompactPCI Hot Swap
Controller with I
2
C Compatible Interface
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
QuickSwitch is a registered trademark of Quality Semiconductor Corp.
CompactPCI is a trademark of the PCI Industrial Computer Manufacturers Group.
I
2
C is a trademark of Philips Electronics N.V.
C5
0.01
μ
F
C1
0.047
μ
F
C4
0.01
μ
F
GND
12V
IN
V
EEIN
OFF/ON
FAULT
PWRGD
RESETIN
3V
IN
3V
IN
5V
IN
3V
SENSE
3V
OUT
5V
IN
LTC4240
PRECHARGE
DRIVE
5V
OUT
5V
SENSE
GATE
12V
OUT
V
EEOUT
TIMER
RESETOUT
EARLY
V(I/O)
R16
10k
R18
1k
R17, 1.2k
R3
10
5V
IN
R4
10
R15
2k
R30
1k
R29
10
5V
5V AT 5A
3V
3.3V AT 7.6A
12V
12V AT 500mA
C
LOAD
(12V
OUT
)
V
–12V AT 100mA
C
LOAD
(V
EEOUT
)
4240 TA01
R11
18
3V
IN
3V
OUT
R6
10k
R5
1k
R8, 1k
R7, 12
C3, 4.7nF
R9
24
R1
0.005
Q1
Si7880DP
Q2
Si7880DP
R2
0.007
C2
0.1
μ
F
R13
10
R14
10
MEDIUM
5V
LONG 5V
MEDIUM
3.3V
LONG 3.3V
LONG V(I/O)
12V
–12V
BD_SEL#
HEALTHY#
PCI_RST#
GROUND
TO PCI BRIDGE
DEVICE OR
EQUIVALENT
BE
DGND
LED
SCL
SDA
R19
2.55k
1%
R20
1.91k
1%
PRSNT2#
PRSNT1#
ADDRIN
SCL
SDA
C8
0.01
μ
F
PER
PIN
C
LOAD
(5V
OUT
)
+
C
LOAD
(3V
OUT
)
C7
0.01
μ
F
PER
PIN
C6
0.01
μ
F
5V
IN
Z4
Z1
Z2
Z1, Z2: SMAJ12CA
Z3, Z4: IPMT5.0AT3
Z3
CompactPCI
BACKPLANE
CONNECTOR
(FEMALE)
CompactPCI
BACKPLANE
CONNECTOR
(MALE)
LOCAL_PCI_RST#
R10
100
TO
QUICKSWITCH
ENABLE
Q3
MMBT2222A
R12
10k
R22, 2.74
R21, 1.74
R25, 1.2k
R28, 200
+
+
+
C9
10nF
C10
10nF
C11
10nF
相關(guān)PDF資料
PDF描述
LTC4240IGN CompactPCI Hot Swap Controller with I2C Compatible Interface
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4240CGN 功能描述:IC CTRLR HOTSWAP CPCI I2C 28SSOP 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 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)
LTC4240CGN#PBF 功能描述:IC CTLR HOT SWAP 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 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)
LTC4240CGN#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 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)
LTC4240CGN#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 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)
LTC4240IGN 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 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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