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| 型号： | LTC1646IGN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 407K |
| 描述： | IC CNTRLR HOTSWAP PCIDUAL 16SSOP |
| 标准包装： | 100 |
| 类型： | 热交换控制器 |
| 应用： | CompactPCI? |
| 内部开关： | 无 |
| 电源电压： | 3.3V，5V |
| 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 |
LTC1646
1
1646fa
?/DIV>
CompactPCI Bus Removable Boards
?/DIV>
Allows Safe Board Insertion and Removal from a
Live, CompactPCI
TM
Bus
?/DIV>
Controls 3.3V and/or 5V Supplies
?/DIV>
Programmable Foldback Current Limit During
Power-Up
?/DIV>
Dual Level Circuit Breakers Protect Supplies from
Overcurrent and Short-Circuit Faults
?/DIV>
LOCAL_PCI_RST# Logic On-Chip
?/DIV>
PRECHARGE Output Biases I/O Pins During Card
Insertion and Extraction
?/DIV>
User Programmable Supply Voltage Power-Up Rate
?/DIV>
15V High Side Drive for External N-Channel
MOSFETS
?/DIV>
PWRGD, RESETOUT and FAULT Outputs
CompactPCI Dual
Hot Swap Controller
The LTC
?/DIV>
1646 is a Hot Swap
TM
controller that allows a
board to be safely inserted and removed from a live
CompactPCI bus slot. Two external N-Channel transistors
control the 3.3V and 5V supplies. The supplies can be
ramped-up in current limit or a programmable rate. Elec-
tronic circuit breakers protect both supplies against
overcurrent fault conditions. The PWRGD output indicates
when all of the supply voltages are within tolerance. The
OFF/ON pin is used to cycle the board power or reset the
circuit breaker. The PRECHARGE output can be used to
bias the bus I/O pins during card insertion and extraction.
PCI_RST# is logically combined on-chip with HEALTHY#
in order to generate LOCAL_PCI_RST# which can be used
to reset the CPCI card logic if either of the supply voltages
is not within tolerance.
The LTC1646 is available in the 16-pin narrow SSOP
package.
Figure 1
MMBT2222A
4.7nF
18&
18&
12&
10&
2.7&
1.8&
R3
10&
3k
R4
10&
3k
1k
R1
0.005&, 1%
R2
0.007&
1%
1k
R5
1k, 5%
10k
10k
3k
1.2k
3V
IN
PRECHARGE OUT
1V ?0%
I
OUT
= ?5mA
3V
IN
3V
IN
3V
SENSE
5V
SENSE
3V
OUT
3V
OUT
5V
OUT
3.3V
5V
IN
5V
IN
5V
RESET#
I/O
PCI
BRIDGE
(21154)
DATA BUS
DATA BUS
V(I/O)
V(I/O)
0.1礔
0.1礔
0.1礔
C1
0.01礔
Q2
IRF7413
Q1
IRF7413
5V
5A
3.3V
7.6A
GATE
GND
PRECHARGE
DRIVE
RESETOUT
TIMER
OFF/ON
FAULT
PWRGD
RESETIN
LTC1646
15
8
9
10
7
12
11
5
2
1
6
13
14
3
4
16
BD_SEL#
HEALTHY#
PCI_RST#
1646 F01
DATA LINE EXAMPLE
COMPACT PCI
BACKPLANE
CONNECTOR
(MALE)
COMPACT PCI
CIRCUIT CARD
CONNECTOR
(FEMALE)
5V
LONG 5V
3.3V
LONG 3.3V
GROUND
I/O PIN 1
Z1, Z2: BZX84C6V2
Z2
Z1
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
DESCRIPTIO
, LTC and LT 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.
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| LTC1647-1CS8 | 功能描述:IC CONTROLLR HOTSWAP DUAL 8-SOIC 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 |
| LTC1647-1CS8#PBF | 功能描述:IC CTLR HOTSWAP DUAL 8-SOIC 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) |
| LTC1647-1CS8#TR | 功能描述:IC CONTROLLER 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 |
| LTC1647-1CS8#TRPBF | 功能描述:IC CONTROLLR HOTSWAP 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 |
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