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参数资料
| 型号： | LTC1644IGN#TR |
| 厂商： | Linear Technology |
| 文件页数： | 1/24页 |
| 文件大小： | 447K |
| 描述： | IC CONTROLLER HOT SWAP 20-SSOP |
| 标准包装： | 2,500 |
| 类型： | 热交换控制器 |
| 应用： | CompactPCI? |
| 内部开关： | 无 |
| 电源电压： | 3.3V，5V，±12V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | LTC1644IGNTR |
LTC1644
1
1644f
The LTC
?/DIV>
1644 is a Hot Swap
TM
controller that allows a board
to be safely inserted and removed from a CompactPCI bus
slot. External N-channel transistors control the 3.3V/5V
supplies, while on-chip switches control the
12V and 12V supplies. The 3.3V and 5V supplies can be
ramped up at a programmable rate. Electronic circuit break-
ers protect all four supplies against overcurrent faults. 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 combined on-chip with
HEALTHY# in order to generate LOCAL_PCI_RST#.
s
Hot Board Insertion into CompactPCI Bus
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
Allows Safe Board Insertion and Removal from a
Live, CompactPCI
TM
Bus
s
Controls 12V, 3.3V, 5V and 12V Supplies
s
Adjustable Foldback Current Limit with Circuit
Breaker
s
Dual-Level Circuit Breakers Protect 5V and 3.3V
Supplies from Overcurrent and Short-Circuit Faults
s
LOCAL_PCI_RST# Logic On-Chip
s
PRECHARGE Output Biases I/O Pins During Card
Insertion and Extraction
s
Adjustable Supply Voltage Power-Up Rate
CompactPCI Bus
Hot Swap Controller
Hot Swap is a trademark of Linear Technology Corporation.
CompactPCI is a trademark of the PCI Industrial Computer Manufacturers Group.
Figure 1
DESCRIPTIO
FEATURES
APPLICATIO S
TYPICAL APPLICATIO
Z2
C5
0.01礔
C1
0.047礔
C4
0.01礔
GND
12V
IN
V
EEIN
OFF/ON
FAULT
PWRGD
RESETIN
3V
IN
3V
IN
*
5V
IN
*
3V
SENSE
17
3V
OUT
18
5V
IN
LTC1644
20-PIN SSOP
13
PRECHARGE
12
DRIVE
11
5V
OUT
3
5V
SENSE
14
16
GATE
15
1
2
5
6
7
9
12V
OUT
V
EEOUT
TIMER
RESETOUT
20
19
4
10
R18
2k
R19
1k
R20 1.2k
EARLY V(I/O)
R3
10&
5V
IN
Z1
C6
0.01礔
C7
0.01礔
Z1, Z2: SMAJ12CA Z3, Z4: 1PMT5.0AT3 *5V
IN
AND 3V
IN
MAY BE USED AS SOURCES OF EARLY POWER
R4
10&
R17
2k
5V
OUT
5V AT 5.7A
3V
OUT
3.3V AT 8A
12V
OUT
12V AT 500mA
V
EEOUT
12V AT 100mA
I/O DATA LINE 1
I/O DATA LINE 128
I/O #1
1644 F01
Q3
MMBT2222A
1V
?0%
8
R11
51k
R10
18& 5%
3V
IN
3V
OUT
R13 10&
I/O #128
R14 10&
R12
51k
R6
2k
R5
1k
R8 1k
R7
12&
C3 4.7nF
R9
24&
R1
0.005&
Q1
IRF7413
Q2
IRF7413
R2
0.007&
C2
0.1礔
C
LOAD(5VOUT)
C
LOAD(3VOUT)
C
LOAD(VEEOUT)
C
LOAD(12VOUT)
RESET#
PCI
BRIDGE
CHIP
PCB EDGE
BACKPLANE
CONNECTOR
R15
1&
R16
1&
BACKPLANE
CONNECTOR
5V
LONG 5V
3.3V
LONG 3.3V
12V
12V
BD_SEL#
HEALTHY#
PCI_RST#
GROUND
I/O PIN 1
I/O PIN 128
Z3
R21 1.74&
R22 2.74&
Z4
C8
0.1礔
PER 10
POWER
PINS
C9
0.1礔
PER 10
POWER
PINS
+
+
+
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1645CS | 功能描述:IC CTRLR SEQ HOTSWAP DUAL 14SOIC 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 |
| LTC1645CS#PBF | 功能描述:IC CTLR HOT SWAP SEQ DUAL 14SOIC 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 |
| LTC1645CS#TR | 功能描述:IC CTRLR SEQ HOTSWAP DUAL 14SOIC 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 |
| LTC1645CS#TRPBF | 功能描述:IC CTRLR SEQ HOTSWAP DUAL 14SOIC 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 |
| LTC1645CS8 | 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 |
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