LTC1643A
PRODUCTIONPCI-Bus Hot Swap Controller
- Part Models
- 12
- 1ku List Price
- Starting From $7.07
Overview
- Allows Safe Board Insertion and Removal from a Live PCI Slot
- Works on either a Motherboard (LTC1643AH) or CompactPCI™ Card (LTC1643AL/LTC1643AL-1)
- Controls –12V, 3.3V, 5V, 12V Supplies
- Programmable Foldback Current Limit with Circuit Breaker
- User-Programmable Supply Voltage Power-Up Rate
- High Side Drive for External N-Channels MOSFETs
- –12V and 12V On-Chip Switches
- Fault and Power-Good Outputs
- Available in a Narrow 16-Lead SSOP Package
The LTC1643A is a Hot Swap™ controller that allows a board to be safely inserted and removed from a live PCI-Bus slot. Two external N-channel transistors control the 3.3V and 5V supplies while on-chip switches control the –12V and 12V supplies. All supply voltages can be ramped up at a programmable rate. An electronic circuit breaker protects all four supplies against overcurrent faults. The foldback current limit feature limits current spikes and power dissipation when shorts occur and allows boards with large capacitances to be powered up without tripping the circuit breaker. The PWRGD output indicates when all of the supply voltages are within tolerance and the FAULT output indicates an overcurrent condition. The ON(LTC1643AH)/ON (LTC1643AL/ LTC1643AL-1) pin is used to cycle the board power or reset the circuit breaker. The LTC1643AL-1 has the ±12V power good comparators disabled.
The LTC1643A is available in a 16-pin narrow SSOP package.
Applications
- PCI-Based Servers
- CompactPCI Compliant Boards
Documentation
Data Sheet 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 |
|---|---|---|---|
| LTC1643AHCGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AHCGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AHIGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AHIGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AL-1CGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AL-1CGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AL-1IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643AL-1IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643ALCGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643ALCGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643ALIGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC1643ALIGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC1643AHCGN#PBF | PRODUCTION | |
| LTC1643AHCGN#TRPBF | PRODUCTION | |
| LTC1643AHIGN#PBF | PRODUCTION | |
| LTC1643AHIGN#TRPBF | PRODUCTION | |
| LTC1643AL-1CGN#PBF | PRODUCTION | |
| LTC1643AL-1CGN#TRPBF | PRODUCTION | |
| LTC1643AL-1IGN#PBF | PRODUCTION | |
| LTC1643AL-1IGN#TRPBF | PRODUCTION | |
| LTC1643ALCGN#PBF | PRODUCTION | |
| LTC1643ALCGN#TRPBF | PRODUCTION | |
| LTC1643ALIGN#PBF | PRODUCTION | |
| LTC1643ALIGN#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package |
||
| LTC1643AHCGN#PBF | PRODUCTION | |
| LTC1643AHCGN#TRPBF | PRODUCTION | |
| LTC1643AHIGN#PBF | PRODUCTION | |
| LTC1643AHIGN#TRPBF | PRODUCTION | |
| LTC1643AL-1CGN#PBF | PRODUCTION | |
| LTC1643AL-1CGN#TRPBF | PRODUCTION | |
| LTC1643AL-1IGN#PBF | PRODUCTION | |
| LTC1643AL-1IGN#TRPBF | PRODUCTION | |
| LTC1643ALCGN#PBF | PRODUCTION | |
| LTC1643ALCGN#TRPBF | PRODUCTION | |
| LTC1643ALIGN#PBF | PRODUCTION | |
| LTC1643ALIGN#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG] |
||
| LTC1643AHCGN#PBF | PRODUCTION | |
| LTC1643AHCGN#TRPBF | PRODUCTION | |
| LTC1643AHIGN#PBF | PRODUCTION | |
| LTC1643AHIGN#TRPBF | PRODUCTION | |
| LTC1643AL-1CGN#PBF | PRODUCTION | |
| LTC1643AL-1CGN#TRPBF | PRODUCTION | |
| LTC1643AL-1IGN#PBF | PRODUCTION | |
| LTC1643AL-1IGN#TRPBF | PRODUCTION | |
| LTC1643ALCGN#PBF | PRODUCTION | |
| LTC1643ALCGN#TRPBF | PRODUCTION | |
| LTC1643ALIGN#PBF | PRODUCTION | |
| LTC1643ALIGN#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:
- LTC1643AH
- LTC1643AL
- LTC1643AL-1
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
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