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参数资料
| 型号： | LT4220IGN |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 259K |
| 描述： | IC CTLR HOTSWAP DUAL 16-SSOP |
| 标准包装： | 100 |
| 类型： | 热交换控制器 |
| 应用： | 通用 |
| 内部开关： | 无 |
| 电源电压： | 2.7 V ~ 16.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 管件 |
1
LT4220
4220f
APPLICATIO S
FEATURES
DESCRIPTIO
TYPICAL APPLICATIO
Dual Supply
Hot Swap Controller
s
Hot Swap
TM
Controller for Positive
and Negative Supplies
s
Supply Tracking Mode
s
?SPAN class="pst LT4220IGN-TR_2344565_5">2.7V to ?SPAN class="pst LT4220IGN-TR_2344565_5">16.5V Operation
s
Analog Current Limit with Foldback
s
Allows Safe Board Insertion and Removal
from a Live Backplane
s
Open-Collector Power Good Comparators
s
Automatic Retry or Latchoff After a Current Fault
s
Dual Undervoltage Lockout Comparator Inputs
s
Current Fault Indication
s
Live Board Insertion
s
RAID Systems
s
5.2V ECL Supplies
s
Industrial Controls
s
Split Supply Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
The LT
?/DIV>
4220 16-pin dual voltage Hot Swap controller
allows a board to be safely inserted and removed from a
live backplane. The device operates with any combination
of 2.7V to 16.5V and 2.7V to 16.5V supplies. Using two
external N-channel pass transistors, the board supply
voltages can be ramped up at an adjustable rate. A select-
able tracking mode allows dual supply tracking control for
ramping the positive and negative supplies together.
The LT4220 features foldback current limit and latches off
both gates if either supply remains in current limit longer
than an adjustable time period. The IC can be configured
for automatic restart after a delay set by the same timer.
A power good signal indicates when the output voltages
monitored by the two FB comparators are within tolerance,
and the gate drive signals are at their full on voltage.
The LT4220 is available in a 16-lead narrow SSOP
package.
Hot Swap is a trademark of Linear Technology Corporation.
V
CC
ON
+
C6
1礔
C5
1礔
R2
4.99k
R1
36.5k
R4
4.99k
R3
36.5k
12V
V
EE
12V
V
CC
FAULT
TIMER
GND
TRACK
ON
PWRGD
FB
+
R10
4.99k
R9
36.5k
12V
V
OUT
+
R12
4.99k
R11
36.5k
4220 TA01
12V
V
OUT
R7
10&
FB
SENSE
+
R
S
+
0.005&
R
S
0.005&
GATE
+
R6
1k
R5
10&
C1
10nF
R8
1k
C2
10nF
C3
100nF
Q1
SUB85N03-04
V
EE
SENSE
SENSEK
LT4220
GATE
Q2
SUB85N03-04
CL2
CL1
Z2*
R14
10&
C4
100nF
Z1*
R13
10&
V
IN
+
V
IN
* 1SMA13AT3 TRANSIENT
VOLTAGE SUPPRESSOR
+
+
7
16
15
14
1
2
3
4
12
11
6
8
9
10
13
5
R15
20k
R16, 20k
C7
10nF
C8
10nF
D1
IN4001
D2
IN4001
?SPAN class="pst LT4220IGN-TR_2344565_18">12V 10A Hot Swap Controller
12V
V
IN
+
12V
V
OUT
+
12V
V
IN
12V
V
OUT
TIME (10ms/DIV)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT4220IGN#PBF | 功能描述:IC CTLR HOTSWAP DUAL 16-SSOP RoHS:是 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 |
| LT4220IGN#TR | 功能描述:IC CTLR HOTSWAP DUAL 16-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 |
| LT4220IGN#TRPBF | 功能描述:IC CTLR HOTSWAP DUAL 16-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) |
| LT4239 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TRANSISTOR | BJT | NPN | TO-129 |
| LT424LF | 制造商:EDSYN 功能描述:LONER Spade Soldering Tip High-Temperature Rated for Lead-Free Process W: .06 i |
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