LTC4211IS8

Series: -
Current Limit: -
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Type: Hot-Swap Controller
Applications: General Purpose
Internal Switch(s): No
Package / Case: 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 8-SOIC
Packaging: Tube
Manufacturer: Linear Technology
Voltage - Supply: 2.5 V ~ 16.5 V


Features:

Allows Safe Board Insertion and Removal from a Live Backplane
Controls Supply Voltages from 2.5V to 16.5V
Programmable Soft-Start with Inrush Current Limiting, No External Gate Capacitor Required
Faster Turn-Off Time Because No External Gate Capacitor is Required
Dual Level Overcurrent Fault Protection
Programmable Response Time for Overcurrent Protection (MS)
Programmable Overvoltage Protection (MS)
Automatic Retry or Latched Mode Operation (MS)
High Side Drive for an External N-Channel FET
User-Programmable Supply Voltage Power-Up Rate
FB Pin Monitors V_OUT and Signals RESET
Glitch Filter Protects Against Spurious RESET Signal


Application

Electronic Circuit Breaker
Hot Board Insertion and Removal (Either On Backplane or On Removable Card)
Industrial High Side Switch/Circuit Breaker


Pinout




Specifications

Supply Voltage (V_CC) ..............................................................17V
Input Voltage
       FB, ON ..............................................................0.3V to 17V
SENSE, FILTER ........................................... 0.3V to V_CC + 0.3V
TIMER ........................................................................0.3V to 2V
Output Voltage
      GATE .............................................Internally Limited (Note 3)
      RESET, FAULT ....................................................0.3V to 17V
Operating Temperature Range
      LTC4211C .........................................................0°C to 70°C
      LTC4211I......................................................40°C to 85°C
Storage Temperature Range ............................65°C to 150°C
Lead Temperature (Soldering, 10 sec).............................. 300°C


Description

The LTC^®4211 is a Hot Swap^TM 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 supply voltages ranging from 2.5V to 16.5V. The LTC4211 provides softstart and inrush current limiting during the start-up period which has a programmable duration.

Two on-chip current limit comparators of LTC4211  provide dual level overcurrent circuit breaker protection. The slow comparator trips at V_CC 50mV and activates in 20ms (or programmed by an external filter capacitor, MS only). The fast comparator of LTC4211  trips at V_CC 150mV and typically responds in 300ns.

The FB pin monitors the output supply voltage and signals the RESET output pin. The ON pin signal turns the chip on and off and can also be used for the reset function. The MS package has FAULT and FILTER pins to provide additional functions like fault indication, autoretry or latch-off modes, programmable current limit response time and programmable overvoltage protection using an external Zener diode clamp.

Parameters:

Technical/Catalog Information	LTC4211IS8
Vendor	Linear Technology
Category	Integrated Circuits (ICs)
Applications	General Purpose
Type	Hot-Swap Controller
Package / Case	8-SOIC (3.9mm Width)
Packaging	Tube
Current Limit	-
Internal Switch(s)	No
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	2.5 V ~ 16.5 V
Drawing Number	161; 05-08-1610; S; 8
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	LTC4211IS8 LTC4211IS8