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LTC4210-4IS6 Datasheet(PDF) 1 Page - Linear Technology |
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LTC4210-4IS6 Datasheet(HTML) 1 Page - Linear Technology |
1 / 16 page 1 LTC4210-3/LTC4210-4 421034fa APPLICATIO S DESCRIPTIO FEATURES TYPICAL APPLICATIO The LTC ®4210-3/LTC4210-4 is a 6-pin SOT-23 Hot SwapTM controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the GATE of an external N-channel MOSFET for a supply voltage ranging from 2.7V to 7V. The LTC4210 provides the initial timing cycle and allows the GATE to be ramped up at an adjustable rate. The LTC4210 features a fast current limit loop providing active current limiting together with a circuit breaker timer. The signal at the ON pin turns the part on and off and is also used for the reset function. The LTC4210-3 retries on overcurrent fault and the LTC4210-4 latches off on an overcurrent fault. ■ Allows Safe Board Insertion and Removal from a Live Backplane ■ Adjustable Analog Current Limit with Circuit Breaker ■ Fast Response Limits Peak Fault Current ■ Automatic Retry or Latch Off On Current Fault ■ Adjustable Supply Voltage Power-Up Rate ■ High Side Drive for External MOSFET Switch ■ Controls Supply Voltages from 2.7V to 7V ■ Undervoltage Lockout ■ Adjustable Overvoltage Protection ■ Low Profile (1mm) SOT-23 (ThinSOT TM) Package ■ Hot Board Insertion ■ Electronic Circuit Breaker ■ Industrial High Side Switch/Circuit Breaker Hot Swap Controller in 6-Lead SOT-23 Package Single Channel 5V Hot Swap Controller Power-Up Sequence + VCC SENSE LTC4210-3 470 µF VOUT 5V 4A GND 4210 TA01 100 Ω GATE GND TIMER ON SHORT LONG VIN 5V GND LONG Z1: ISMA10A OR SMAJ10A 10k 20k 10 Ω RSENSE 0.01 Ω PCB EDGE CONNECTOR (MALE) Q1 Si4410DY Z1 OPTIONAL 100 Ω 0.22 µF 0.1 µF 0.01 µF BACKPLANE CONNECTOR (FEMALE) 4210 TA02 10ms/DIV IOUT (0.5A/DIV) VOUT (5V/DIV) VON (2V/DIV) VTIMER (1V/DIV) CLOAD = 470µF , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ThinSOT and Hot Swap are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. |
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