LTC1644 CompactPCI Bus Hot Swap Controller
The LTC®1644 is a Hot Swap™ 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 breakers 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#.
产品特点 Features
- Allows Safe Board Insertion and Removal from a Live, CompactPCI™ Bus
- Controls –12V, 3.3V, 5V and 12V Supplies
- Adjustable Foldback Current Limit with Circuit Breaker
- Dual-Level Circuit Breakers Protect 5V and 3.3V Supplies from Overcurrent and Short-Circuit Faults
- LOCAL_PCI_RST# Logic On-Chip
- PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction
- Adjustable Supply Voltage Power-Up Rate
参数
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应用
- Hot Board Insertion into CompactPCI Bus
典型应用图
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LTC1644 订购信息和价格参考Package Variations and Pricing
| 器件型号 |
封装 |
引脚 |
温度 |
价格 (以 1 ~ 99 片为批量) |
价格 (以 1000 片为批量) * |
| LTC1644CGN |
SSOP |
20 |
C |
$4.55 |
$3.60 |
| LTC1644CGN#PBF |
SSOP |
20 |
C |
$4.55 |
$3.60 |
| LTC1644CGN#TR |
SSOP |
20 |
C |
|
$3.70 |
| LTC1644CGN#TRPBF |
SSOP |
20 |
C |
|
$3.70 |
| LTC1644IGN |
SSOP |
20 |
I |
$5.20 |
$4.15 |
| LTC1644IGN#PBF |
SSOP |
20 |
I |
$5.20 |
$4.15 |
| LTC1644IGN#TR |
SSOP |
20 |
I |
|
$4.65 |
| LTC1644IGN#TRPBF |
SSOP |
20 |
I |
|
$4.65 |
LTC1644 数据手册及相关资料下载
- 数据手册(英文) : LTC1644 - CompactPCI Bus Hot Swap Controller.PDF
- 可靠性数据 : R318 Reliability Data .PDF
- 产品选型卡 : Low Voltage Hot Swap Controllers.PDF
