1
LTC1645
1645fa
Dual-Channel Hot Swap
Controller/Power Sequencer
The LTC
?/DIV>
1645 is a 2-channel Hot Swap
TM
 controller that
allows a board to be safely inserted and removed from a
live backplane. Using external N-channel pass transistors,
the supply voltages can be ramped at a programmable
rate. Two high side switch drivers control the N-channel
gates for supply voltages ranging from 1.2V to 12V. The
two channels can be set to ramp up and down separately,
or they can be programmed to rise and fall simultaneously,
ensuring power supply tracking at the two outputs.
Programmable electronic circuit breakers protect against
shorts at either output. The RESET output can be used to
generate a system reset when a supply voltage falls below
a user-programmed voltage. An additional spare com-
parator is available for monitoring a second supply
voltage.
The LTC1645 is available in the 8- and 14-pin SO packages.
s
Hot Board Insertion
s
Power Supply Sequencing
s
Electronic Circuit Breaker
s
Allows Safe Board Insertion and Removal from a
Live Backplane
s
Programmable Power Supply Sequencing
s
Programmable Electronic Circuit Breaker
s
User-Programmable Supply Voltage Power-Up and
Power-Down Rate
s
High Side Drivers for External N-Channel FETs
s
Controls Supply Voltages from 1.2V to 12V
s
Ensures Proper Power-Up Behavior
s
Undervoltage Lockout
s
Glitch Filter Protects Against Spurious RESET Signals
s
8- and 14-Pin SO Packages
, LTC and LT are registered trademarks of Linear Technology Corporation.
Hot Swap is a trademark of Linear Technology Corporation.
5V and 3.3V Hot Swap
5V and 3.3V Hot Swap Waveforms
ON
5V/DIV
GATEn
10V/DIV
V
OUT2
5V/DIV
V
OUT1
5V/DIV
0.005&*
IRF7413
IRF7413
0.005&*
10&
10&
10k
C
LOAD2
C
LOAD1
V
OUT1
5V
5A
V
OUT2
3.3V
5A
1645 TA01
0.01礔
25V
0.01礔
25V
ON
V
IN2
V
IN1
ON
GND
GND
PLUG-IN CARD
BACKPLANE
SENSE1
V
CC2
GATE1
SENSE2 GATE2
LTC1645
(8-LEAD)
+
+
V
CC1
*LRF1206-01-R005-J (IRC)
FEATURES
DESCRIPTIO
APPLICATIO S
TYPICAL APPLICATIO
相关PDF资料
LTC1646IGN#TR IC CNTRLR HOTSWAP PCIDUAL 16SSOP
LTC1647-1IS8#TRPBF IC CONTROLLR HOTSWAP DUAL 8-SOIC
LTC1704EGN#TRPBF IC REG DL BUCK/LINEAR 16SSOP
LTC1966MPMS8#TRPBF IC RMS/DC CONV MICROPWR 8-MSOP
LTC1967IMS8#TRPBF IC CONVERTER RMS-DC PREC 8MSOP
LTC1968IMS8#TRPBF IC CONVERTER RMS-DC PREC 8MSOP
LTC3100EUD#TRPBF IC REG BUCK/BOOST/LINEAR 16-QFN
LTC3104IMSE#TRPBF IC REG DL BCK/LINEAR SYNC 16MSOP
相关代理商/技术参数
LTC1645IS8 功能描述:IC CTRLR SEQ HOTSWAP DUAL 8SOIC 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
LTC1645IS8#PBF 功能描述:IC CTLR HOT SWAP SEQ DUAL 8-SOIC 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
LTC1645IS8#TR 功能描述:IC CTRLR SEQ HOTSWAP DUAL 8SOIC 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
LTC1645IS8#TRPBF 功能描述:IC CTRLR SEQ HOTSWAP DUAL 8SOIC 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
LTC1645ISPBF 制造商:Linear Technology 功能描述:Hot Swap Controller 2-Channel 12V SOIC14
LTC1646CGN 功能描述:IC CNTRLR HOTSWAP PCIDUAL 16SSOP 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
LTC1646CGN#PBF 功能描述:IC CNTRLR HOTSWAP PCIDUAL 16SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统,AdvancedTCA ? 系统,高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP,10-MSOP(0.118",3.00mm 宽) 供应商设备封装:10-MSOP 包装:管件
LTC1646CGN#TR 功能描述:IC CNTRLR HOTSWAP PCIDUAL 16SSOP 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