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Корпус / Упаковка / Маркировка

Параметры

Экологический статус

Design Notes

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  Safe Hot Swapping Using the LTC1421 &mdash DN139
  PDF, 77 Кб, Файл опубликован: 1 фев 2004
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  Safe Hot Swapping Using the LTC1421 – Design Note 139
  James Herr and Robert Reay
  transistors, board connection sensing, flexible supply
  voltage monitoring, power on reset output, short-circuit
  protection and soft or hard reset via software control. When a circuit board is inserted into a live backplane,
  the large bypass capacitors on the board can draw
  huge inrush currents from the backplane power bus as
  they charge. The inrush current, on the order of 10A to
  100A, can destroy the board’s bypass capacitors, metal
  traces or connector pins. The inrush current can also
  cause a glitch on the backplane power bus, which could
  force all of the other boards in the system to reset. In
  addition, the system data bus can be disrupted when
  the board’s data pins make or break contact. Typical Application
  Figure 1 shows a typical application using the LTC1421.
  The LTC1421 works best with a staggered, 3-level
  connector. Ground makes connection п¬Ѓrst to discharge
  any static build-up. VCC, VDD and VEE make connection
  second and the data bus and all other pins last. The
  connection sense pins CON1 and CON2 are located on
  opposite ends of the connector to allow the board to
  be rocked back and forth during insertion. The LTCВ®1421 can turn on two positive and one negative
  board supply voltages at a programmable rate, allowing a board to be safely inserted in, or removed from, …

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  Hot Swapping the PCI Bus &mdash DN155
  PDF, 100 Кб, Файл опубликован: 15 май 1997
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  Hot Swapping the PCI Bus – Design Note 155
  James Herr, Paul Marshik and Robert Reay
  The Peripheral Component Interconnect (PCI) bus has
  become widely used in high volume personal computers and single-board computer designs. With a 32-bit
  data path and a bandwidth of up to 133Mbps, PCI offers
  the throughput demanded by the latest I/O and storage
  peripherals. Unfortunately, the original PCI specification does not require the bus to be hot swappable, so
  the system power must be turned off when a peripheral
  is inserted into or removed from a PCI slot. mandatory. By using the LTC В®1421 to control the power
  supplies and a QuickSwitch bus switch to buffer the
  data bus, a peripheral can be inserted into a PCI slot
  without turning off the system power.
  Inrush Current and Data Bus Problems
  When the peripheral is inserted, the supply bypass
  capacitors on the peripheral can draw huge transient
  currents from the PCI power bus as they charge up.
  The transient currents can cause permanent damage With the migration of the PCI bus into servers, industrial computers and computer telephony systems, the
  ability to plug a peripheral into a live PCI slot becomes L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks
  and Hot Swap is a trademark of Linear Technology Corporation. All other trademarks
  are the property of their respective owners.
  PCI
  CONNECTOR Q3
  1/2 IRF7101 12V …

Модельный ряд

Классификация производителя

• Monitor, Control and Protection > Hot Swap Controllers > Low Voltage Hot Swap Controllers

Варианты написания:

LTC1421IG-2.5PBF, LTC1421IG-2.5 PBF, LTC1421IG2.5#PBF, LTC1421IG 2.5#PBF