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參數(shù)資料
| 型號： | LTC4224CMS-1#TRMPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 215K |
| 代理商： | LTC4224CMS-1#TRMPBF |
LTC4224-1/LTC4224-2
5
422412fa
PIN FUNCTIONS
SENSE1, SENSE2 (Pins 1,10): Current Sense Input. Con-
nect this pin to an external sense resistor. The current limit
circuit controls GATEn to limit the voltage between VCCn
and SENSEn to 25mV. An Electronic Circuit Breaker (ECB)
is active during current limiting and trips after 5ms. To
disable current limit, connect this pin to VCCn.
VCC1, VCC2 (Pins 2, 9): Supply Voltage and Current Sense
Input. An undervoltage lockout circuit disables the part
until VCC, the higher of VCC1 and VCC2, exceeds 2.4V. The
lower supply is disabled until it exceeds 0.8V.
GATE1, GATE2 (Pins 3, 8): Gate Drive for External N-channel
MOSFET. A charge pump sources 10μA from GATE to turn
on the external MOSFET. An internal clamp limits the gate
voltage to 5.5V above the higher of VCC1 and VCC2. During
turn-off, a 1.5mA pulldown current discharges GATE to
ground. During short-circuits, a 125mA pulldown current
is activated to discharge GATE to ground.
FAULT (Pin 4): Fault Status Output. Open-drain output
that is normally pulled high to VCC1 or VCC2 by an exter-
nal resistor. It is pulled low when the ECB trips due to an
overcurrent condition at either supply. This pin may be
left open if unused.
ON1, ON2 (Pins 5, 6): On Control Input. A falling edge
turns on the external N-channel MOSFET and a rising edge
turns it off. A low to high transition on this pin resets an
ECB fault for the corresponding channel. Internally pulled
up to VCC by a 10μA current source.
GND (Pin 7): Device Ground.
Exposed Pad (DFN Package Only): Exposed Pad may be
left open or connected to device ground.
FUNCTIONAL DIAGRAM
CHARGE
PUMP
422412 FD
0.8V
2.4V
VCC
–
+
–
+
–
+
–
+
–
+
+ –
CHARGE
PUMP
–
+
GATE
PULLDOWN
LOGIC
CONTROL
GATE
PULLDOWN
0.8V
–
+
0.8V
VCC1
VCC2
10μA
GATE1
GATE2
ON1
FAULT
ON2
SENSE2
SENSE1
GND
ACL1
ACL2
10μA
5.5V
ON2
ON1
ECB1
ECB2
VCC1 UV
VCC2 UV
25mV
VCC
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| LTC4224CMS-1#TRPBF | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
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| LTC4224IDDB-2#TRPBF | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4224CMS-1-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller |
| LTC4224CMS-2#PBF | 功能描述:IC CTRLR HOT SWAP DUAL 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LTC4224CMS-2#TRPBF | 功能描述:IC CNTRLR HOT SWAP DUAL 10-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關(guān) 應(yīng)用:通用 內(nèi)部開關(guān):是 電流限制:可調(diào) 電源電壓:9 V ~ 13.2 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:10-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LTC4224CMS-2-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller |
| LTC4224CMS-2-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Compact Dual Low Voltage Hot Swap Controller |
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