LTC4240
PRODUCTIONCompactPCI Hot Swap Controller with I2C Compatible Interface
- Part Models
- 4
- 1ku List Price
- Starting From $7.78
Overview
- Allows Safe Board Insertion and Removal from a Live CompactPCI™ Bus
- I2C™ Compatible 2-Wire Interface
- PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction
- Controls 3.3V, 5V, 12V and –12V Supplies
- Foldback Current Limit with Circuit Breaker
- LOCAL_PCI_RST# Logic On-Board
- QuickSwitch® Enable Output
- Status LED Driver
- User Programmable Supply Voltage Power-Up Rate
- Registers Individual Supply Faults
- Available in a 28-Pin Narrow SSOP Package
The LTC4240 is a Hot Swap™ controller that allows a board to be safely inserted and removed from a live CompactPCI bus slot. The LTC4240 has a built-in 2-wire I2C compatible interface to allow software control and monitoring of device function and power supply status. Two external N-channel transistors control the 3.3V and 5V supplies, while two internal switches control the –12V and 12V supplies. Electronic circuit breakers protect all four supplies against overcurrent faults. The PWRGD output indicates when all of the supply voltages are within tolerance. The OFF/ON pin is used to cycle the board power or reset the circuit breaker. The I2C interface allows the user to turn the device off or on, set RESETOUT, turn on the status LED driver and ignore 12V, –12V faults. It also allows the user to read the status of the FAULT, RESETIN, RESETOUT, PWRGD, PRSNT1# and PRSNT2# pins. Under a fault condition, the I2C interface can also be used to determine which of the four supplies generated the fault. The LTC4240 is available in a 28-pin narrow SSOP package.
Applications
- Hot Board Insertion into CompactPCI Bus
- Electronic Circuit Breaker
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
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 |
|---|---|---|---|
| LTC4240CGN#PBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4240CGN#TRPBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4240IGN#PBF | 28-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4240IGN#TRPBF | 28-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 10, 2022 - 22_0177 Laser Top Mark Conversion for QSOP20_24_28 Assembled in ADPG [PNG] and UTL |
||
| LTC4240CGN#PBF | PRODUCTION | |
| LTC4240CGN#TRPBF | PRODUCTION | |
| LTC4240IGN#PBF | PRODUCTION | |
| LTC4240IGN#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC4240
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
OBSOLETE: LTC4240CGN | I2C Compact PCI Hot Swap Controller
Resources
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