• 当前位置:
  • 首页
  • >
  • PDF资料
  • >
  • LTC4225-1_15 PDF文件及第1页内容在线浏览

LTC4225-1_15

LTC4225-1_15首页预览图
型号: LTC4225-1_15
PDF文件:
  • LTC4225-1_15 PDF文件
  • LTC4225-1_15 PDF在线浏览
功能描述: Dual Ideal Diode and Hot Swap Controller
PDF文件大小: 351.99 Kbytes
PDF页数: 共24页
制造商: LINER[Linear Technology]
制造商LOGO: LINER[Linear Technology] LOGO
制造商网址: http://www.linear.com
捡单宝LTC4225-1_15
PDF页面索引
120%
LTC4225-1/LTC4225-2
1
422512f
Typical applicaTion
FeaTures DescripTion
Dual Ideal Diode and
Hot Swap Controller
The LTC
®
4225 offers ideal diode and Hot Swap™ functions
for two power rails by controlling external series connected
N-channel MOSFETs. MOSFETs acting as ideal diodes
replace two high power Schottky diodes and the associ-
ated heat sinks, saving power and board area. Hot Swap
control MOSFETs allow boards to be safely inserted and
removed from a live backplane by limiting inrush current.
The supply output is also protected against short-circuit
faults with a fast acting current limit and internal timed
circuit breaker.
The LTC4225 regulates the forward voltage drop across
the back-to-back MOSFETs to ensure smooth current
transfer from one supply to the other without oscillation.
The ideal diodes turn on quickly to reduce the load voltage
droop during supply switch-over. If the input supply fails
or is shorted, a fast turn-off minimizes reverse-current
transients.
The LTC4225 allows independent on/off control, and reports
fault and power good status for the supply. The LTC4225-1
features a latch-off circuit breaker, while the LTC4225-2
provides automatic retry after a fault.
µTCA Application
applicaTions
n
Power Path and Inrush Current Control for
Redundant Supplies
n
Low Loss Replacement for Power Schottky Diodes
n
Allows Safe Hot Swapping from a Live Backplane
n
2.9V to 18V Operating Range
n
Controls N-Channel MOSFETs
n
Limits Peak Fault Current in ≤1µs
n
0.5µs Turn-On and Reverse Turn-Off Time
n
Adjustable Current Limit with Circuit Breaker
n
Smooth Switchover without Oscillation
n
Adjustable Current Limit Fault Delay
n
Fault and Power Status Output
n
LTC4225-1: Latch Off After Fault
n
LTC4225-2: Automatic Retry After Fault
n
24-Lead 4mm × 5mm QFN and SSOP Packages
n
Redundant Power Supplies
n
Supply Holdup
n
MicroTCA Systems and Servers
n
Telecom Networks
n
Power Prioritizer
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. Hot Swap is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
CPO1
ON1
137k
12V
12V
ON2
INTV
CC
GND
0.1µF
0.1µF
0.1µF
47nF 47nF
12V
7.6A
PLUG-IN
CARD 1
PLUG-IN
CARD 2
BACKPLANE
422512 TA01a
IN1 SENSE1 DGATE1
Si7336ADP
LTC4225
0.004Ω
Si7336ADP
Si7336ADP
0.004Ω
Si7336ADP
HGATE1 OUT1
CPO2 IN2 SENSE2 DGATE2 HGATE2 OUT2
FAULT1
PWRGD1
EN1
TMR1
TMR2
EN2
PWRGD2
FAULT2
20k
20k
137k
12V
7.6A
Power Dissipation vs Load Current
LOAD CURRENT (A)
0
0
POWER DISSIPATION (W)
0.5
1.0
1.5
2.0
2.5
3.0
2 4 6 8
422512 TA01
DIODE
(SBG1025L)
MOSFET
(Si7336ADP)
POWER SAVED
购买、咨询产品请填写询价信息:(3分钟左右您将得到回复)
询价型号*数量*批号封装品牌其它要求
删除
删除
删除
删除
删除
增加行数
  •  公司名:
  • *联系人:
  • *邮箱:
  • *电话:
  •  QQ:
  •  微信:

  • 关注官方微信

  • 联系我们
  • 电话:13714778017
  • 周一至周六:9:00-:18:00
  • 在线客服:

天天IC网由深圳市四方好讯科技有限公司独家运营

天天IC网 ( www.ttic.cc ) 版权所有©2014-2023 粤ICP备15059004号

因腾讯功能限制,可能无法唤起QQ临时会话,(点此复制QQ,添加好友),建议您使用TT在线询价。

继续唤起QQ 打开TT询价