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參數資料
| 型號： | LT4220 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Dual Supply Hot Swap Controller |
| 中文描述： | 雙電源熱插拔控制器 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 267K |
| 代理商： | LT4220 |
1
LT4220
4220f
APPLICATIU
FEATURES
DESCRIPTIOU
The LT
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.
TYPICAL APPLICATIOU
Dual Supply
Hot Swap Controller
I
Hot Swap
TM
Controller for Positive
and Negative Supplies
I
Supply Tracking Mode
I
±
2.7V to
±
16.5V Operation
I
Analog Current Limit with Foldback
I
Allows Safe Board Insertion and Removal
from a Live Backplane
I
Open-Collector Power Good Comparators
I
Automatic Retry or Latchoff After a Current Fault
I
Dual Undervoltage Lockout Comparator Inputs
I
Current Fault Indication
I
Live Board Insertion
I
RAID Systems
I
–5.2V ECL Supplies
I
Industrial Controls
I
Split Supply Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
V
CC
ON
+
C6
1
F
C5
1
μ
F
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
C
C
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
±
12V 10A Hot Swap Controller
12V
V
IN
+
12V
V
OUT
+
–12V
V
IN
–
–12V
V
OUT
–
TIME (10ms/DIV)
相關PDF資料 |
PDF描述 |
|---|---|
| LT4220CGN | Dual Supply Hot Swap Controller |
| LT4220IGN | Dual Supply Hot Swap Controller |
| LT4254 | Positive High Voltage Hot Swap Controller with Open-Circuit Detect |
| LT4254CGN | Positive High Voltage Hot Swap Controller with Open-Circuit Detect |
| LT4254IGN | Positive High Voltage Hot Swap Controller with Open-Circuit Detect |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT4220CGN | 功能描述:IC CNTRLR DUAL HOT SWAP 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關 應用:通用 內部開關:是 電流限制:可調 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 供應商設備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LT4220CGN#PBF | 功能描述:IC CNTRLR DUAL HOT SWAP 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標準包裝:50 系列:- 類型:熱交換控制器 應用:-48V 遠程電力系統，AdvancedTCA ? 系統，高可用性 內部開關:無 電流限制:可調 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） 供應商設備封裝:10-MSOP 包裝:管件 |
| LT4220CGN#TR | 功能描述:IC CTLR HOTSWAP DUAL 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關 應用:通用 內部開關:是 電流限制:可調 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 供應商設備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LT4220CGN#TRPBF | 功能描述:IC CNTRLR DUAL HOT SWAP 16-SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:100 系列:- 類型:熱插拔開關 應用:通用 內部開關:是 電流限制:可調 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 供應商設備封裝:10-TDFN-EP（3x3） 包裝:管件 |
| LT4220CGNPBF | 制造商:Linear Technology 功能描述:Dual Supply Hot Swap Controller SSOP16 |
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