LTC4211
RECOMMENDED FOR NEW DESIGNSHot Swap Controller with Multifunction Current Control
- Part Models
- 12
- 1ku List Price
- Starting From $3.45
Overview
- 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 VOUT and Signals RESET
- Glitch Filter Protects Against Spurious RESET Signal
The LTC4211 is a Hot Swap controller that allows a board to be safely inserted and removed from a live backplane. An internal highside switch driver controls the gate of an external N-channel MOSFET for supply voltages ranging from 2.5V to 16.5V. The LTC4211 provides soft-start and in rush current limiting during the start-up period which has a programmable duration.
Two on-chip current limit comparators provide dual level overcurrent circuit breaker protection. The slow comparator trips at VCC – 50mV and activates in 20µs (or programmed by an external filter capacitor, MS only). The fast comparator trips at VCC – 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.
Applications
- Electronic Circuit Breaker
- Hot Board Insertion and Removal (Either On Backplane or On Removable Card)
- Industrial High Side Switch/Circuit Breaker
Documentation
Data Sheet 1
User Guide 2
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4211CMS#PBF | 10-Lead MSOP | ||
| LTC4211CMS#TRPBF | 10-Lead MSOP | ||
| LTC4211CMS8#PBF | 8-Lead MSOP | ||
| LTC4211CMS8#TRPBF | 8-Lead MSOP | ||
| LTC4211CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC4211CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC4211IMS#PBF | 10-Lead MSOP | ||
| LTC4211IMS#TRPBF | 10-Lead MSOP | ||
| LTC4211IMS8#PBF | 8-Lead MSOP | ||
| LTC4211IMS8#TRPBF | 8-Lead MSOP | ||
| LTC4211IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC4211IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC4211CMS#PBF | PRODUCTION | |
| LTC4211CMS#TRPBF | PRODUCTION | |
| LTC4211IMS#PBF | PRODUCTION | |
| LTC4211IMS#TRPBF | PRODUCTION | |
|
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC4211CMS8#PBF | PRODUCTION | |
| LTC4211CMS8#TRPBF | PRODUCTION | |
| LTC4211IMS8#PBF | PRODUCTION | |
| LTC4211IMS8#TRPBF | PRODUCTION | |
|
Nov 14, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
||
| LTC4211CS8#PBF | PRODUCTION | |
| LTC4211CS8#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC4211CS8#PBF | PRODUCTION | |
| LTC4211CS8#TRPBF | PRODUCTION | |
| LTC4211IS8#PBF | PRODUCTION | |
| LTC4211IS8#TRPBF | PRODUCTION | |
|
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC4211IS8#PBF | PRODUCTION | |
| LTC4211IS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTC4211
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
LTC4211CMS Demo Board | 7A Electronic Circuit Breaker and Hot Swap Controller
Resources
LTC4211CMS Demo Board | 7A Electronic Circuit Breaker and Hot Swap Controller
Resources
LTC4211 Hot Swap Controller (20A version)
Resources
LTC4211 Hot Swap Controller (20A version)