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LTC1646IGN#TRPBF PDF预览

LTC1646IGN#TRPBF

更新时间: 2024-11-09 19:29:27
品牌 Logo 应用领域
凌特 - Linear PC光电二极管
页数 文件大小 规格书
20页 386K
描述
LTC1646 - CompactPCI Dual Hot Swap Controller; Package: SSOP; Pins: 16; Temperature Range: -40°C to 85°C

LTC1646IGN#TRPBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP,
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.15其他特性:ALSO REQUIRES A 5 V SUPPLY
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:4.8895 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified座面最大高度:1.75 mm
标称供电电压 (Vsup):3.3 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3.899 mmBase Number Matches:1

LTC1646IGN#TRPBF 数据手册

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LTC1646  
CompactPCI Dual  
Hot Swap Controller  
U
DESCRIPTIO  
FEATURES  
The LTC®1646 is a Hot SwapTM 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  
overcurrentfaultconditions.ThePWRGDoutputindicates  
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.  
Allows Safe Board Insertion and Removal from a  
Live, CompactPCITM Bus  
Controls 3.3V and/or 5V Supplies  
Programmable Foldback Current Limit During  
Power-Up  
Dual Level Circuit Breakers Protect Supplies from  
Overcurrent and Short-Circuit Faults  
LOCAL_PCI_RST# Logic On-Chip  
PRECHARGE Output Biases I/O Pins During Card  
Insertion and Extraction  
User Programmable Supply Voltage Power-Up Rate  
15V High Side Drive for External N-Channel  
MOSFETS  
PWRGD, RESETOUT and FAULT Outputs  
U
APPLICATIO S  
The LTC1646 is available in the 16-pin narrow SSOP  
package.  
CompactPCI Bus Removable Boards  
, 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.  
U
TYPICAL APPLICATIO  
COMPACT PCI COMPACT PCI  
BACKPLANE  
CONNECTOR  
(MALE)  
CIRCUIT CARD  
CONNECTOR  
(FEMALE)  
R2  
Z2  
Z1  
0.007  
Q1  
1%  
IRF7413  
5V  
5A  
5V  
R1  
2.7Ω  
1.8Ω  
Q2  
LONG 5V  
3.3V  
0.005, 1%  
IRF7413  
3.3V  
7.6A  
0.1µF  
0.1µF  
R4  
10Ω  
R5  
LONG 3.3V  
BD_SEL#  
R3  
10Ω  
1k, 5%  
V(I/O)  
C1  
0.01µF  
8
9
10  
7
12  
11  
5
3V  
3V  
GATE 3V  
5V  
5V  
5V  
OUT  
IN  
SENSE  
OUT  
IN  
SENSE  
1.2k  
V(I/O)  
3k  
1k  
10k  
2
1
15  
3
OFF/ON  
FAULT  
TIMER  
0.1µF  
3k  
3V  
OUT  
LTC1646  
4
HEALTHY#  
PCI_RST#  
PWRGD  
3k  
16  
RESETIN  
RESETOUT  
GND  
6
PRECHARGE  
13  
DRIVE  
14  
18Ω  
1k  
18Ω  
12Ω  
4.7nF  
3V  
5V  
IN  
IN  
GROUND  
I/O PIN 1  
MMBT2222A  
PRECHARGE OUT  
1V ±10%  
3V  
5V  
IN  
3.3V  
10k  
I
= ± 55mA  
OUT  
RESET#  
10Ω  
DATA LINE EXAMPLE  
I/O  
PCI  
BRIDGE  
(21154)  
DATA BUS  
DATA BUS  
1646 F01  
Z1, Z2: BZX84C6V2  
Figure 1  
1646fa  
1

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