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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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LTC1647-3IGN Arkusz danych(PDF) 1 Page - Linear Technology |
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LTC1647-3IGN Arkusz danych(HTML) 1 Page - Linear Technology |
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1 / 20 page  LTC1647-1/LTC1647-2/LTC1647-3 1 , LTC and LT are registered trademarks of Linear Technology Corporation. Dual Hot Swap Controllers The LTC ®1647-1/LTC1647-2/LTC1647-3 are dual Hot Swap TM controllers that permit a board to be safely in- serted and removed from a live backplane. Using external N-channel MOSFETs, the board supply voltages can be ramped up at a programmable rate. A high side switch driver controls the MOSFET gates for supply voltages ranging from 2.7V to 16.5V. A programmable electronic circuit breaker protects against overloads and shorts. The ON pins are used to control board power or clear a fault. The LTC1647-1 is a dual Hot Swap controller with a common VCC pin, separate ON pins and is available in an SO-8 package. The LTC1647-2 is similar to the LTC1647-1 but combines a fault status flag with automatic retry at the ON pins and is also available in the SO-8 package. The LTC1647-3 has individual VCC pins, ON pins and FAULT status pins for each channel and is available in a 16-lead narrow SSOP package. s Hot Board Insertion s Electronic Circuit Breaker s Portable Computer Device Bays s Hot Plug Disk Drive s Allows Safe Board Insertion and Removal from a Live Backplane s Programmable Electronic Circuit Breaker s FAULT Output Indication s Programmable Supply Voltage Power-Up Rate s High Side Drive for External MOSFET Switches s Controls Supply Voltages from 2.7V to 16.5V s Undervoltage Lockout VID Controller for Two Device Bays Hot Swap is a trademark of Linear Technology Corporation. VCC SENSE 1 1 86 ON1 C3 4.7nF 2 ON2 ON1 3.3V VID SUPPLY ON2 3 GND 4 GATE 1 SENSE 2 75 GATE 2 LTC1647-1 1394 PHY AND/OR USB PORT DEVICE #1 C1 4.7nF R2 10 Ω R1 0.1 Ω Q1 1/2 MMDF3N02HD R5 0.1 Ω Q2 1/2 MMDF3N02HD R3** R4** CLOAD* *CLOAD IS USER-SELECTED BASED ON THE DEVICE REQUIREMENTS ** R3, R4, R7 AND R8 ARE OPTIONAL DISCHARGE RESISTORS WHEN DEVICES ARE POWERED-OFF Q1, Q2: ON SEMICONDUCTOR R6 10 Ω + 1394 PHY AND/OR USB PORT DEVICE #2 1647-1/2/3 TA01 R7** R8** CLOAD* + 5ms/DIV 1647-1/2/3 TA01a VON VGATE VOUT ON/OFF Sequence APPLICATIO S FEATURES TYPICAL APPLICATIO DESCRIPTIO |
Podobny numer części - LTC1647-3IGN |
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Podobny opis - LTC1647-3IGN |
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