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参数资料
| 型号： | LTC1643HCGN#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | 0.150 INCH, PLASTIC, SSOP-16 |
| 文件页数： | 15/16页 |
| 文件大小： | 278K |
| 代理商： | LTC1643HCGN#PBF |
8
LTC1643L/LTC1643L-1/LTC1643H
BLOCK DIAGRAM
W
+
–
+
–
+
–
+
–
LOGIC
9.5V
UVL
5VOUT
+
–
3VOUT
12VIN
50
A
200
A
Q5
ON/ON
FAULT
20
A
3VSENSE
GATE
5VIN 5VSENSE
12VIN
12VOUT
VEEIN
VEEOUT
TIMER
GND
12VIN
3VIN
5VOUT
3VOUT
2.5V
UVL
2.5V
UVL
REF
LTC1643H/LTC1643L
ONLY
LTC1643H/LTC1643L
ONLY
Q2
Q8
REF
1643 BD
CP3
+
–
+
–
+
–
CP4
CP5
CP7
Q3
Q4
5
13
1
16
4
2
15
8
12
11
10
9
3
14
6
7
PWRGD
Q7
Q1
Q9
Q10
Q6
APPLICATIONS INFORMATION
WU
U
Hot Circuit Insertion
When a circuit board is inserted into a live PCI slot, the
supply bypass capacitors on the board can draw huge
transient currents from the PCI power bus as they charge
up. The transient currents can cause permanent damage
to the connector pins and cause glitches on the power bus,
causing other boards in the system to reset.
The LTC1643 is designed to turn a board’s supply voltages
on and off in a controlled manner, allowing the board to be
safely inserted or removed from a live PCI slot without
glitching the system power supplies. The chip also pro-
tects the PCI supplies from shorts and monitors the
supply voltages.
The LTC1643H is designed for motherboard applica-
tions, while the LTC1643L/LTC1643L-1 are designed for
CompactPCI applications where the chip resides on the
plug-in board.
VEEOUT (Pin 15): –12V Supply Output. A 1.2 switch is
connected between VEEIN and VEEOUT. VEEOUT must
exceed –10.8V before the PWRGD signal can go high on
the LTC1643H and LTC1643L.
12VOUT (Pin 16): 12V Supply Output. A 0.5 switch is
connected between 12VIN and 12VOUT. 12VOUT must
exceed 11.4V before the PWRGD signal can go high on the
LTC1643H and LTC1643L.
PIN FUNCTIONS
UU
U
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1643L-1CGN | 制造商:Linear Technology 功能描述: |
| LTC1643LCGN | 制造商:Linear Technology 功能描述: 制造商:Linear Technology 功能描述:POWER CONTROL/MANAGEMENT, 16 Pin, Plastic, SSOP |
| LTC1643LCGN#PBF | 制造商:Linear Technology 功能描述:Hot Swap Controller 16-Pin SSOP N |
| LTC1644CGN | 功能描述:IC CONTROLLER HOT SWAP 20-SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:100 系列:- 类型:热插拔开关 应用:通用 内部开关:是 电流限制:可调 电源电压:9 V ~ 13.2 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:10-WFDFN 裸露焊盘 供应商设备封装:10-TDFN-EP（3x3） 包装:管件 |
| LTC1644CGN#PBF | 功能描述:IC CONTROLLER HOT SWAP 20-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
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