-
LTC4244: Rugged, CompactPCI Bus Hot Swap Controllers Data Sheet8/28/2007PDF337K
Overview
Features and Benefits
- Controls –12V, 3.3V, 5V and 12V Supplies
- ±14.4V Absolute Maximum Rating for 12VIN and –12VIN Input Pins
- Insensitive to Supply Voltage Transients
- Adjustable Foldback Current Limit with Circuit Breaker
- LOCAL_PCI_RST# Logic On-Chip
- PRECHARGE Output Biases I/O Pins During Card Insertion and Extraction
- LTC4244-1 Designed for Applications without –12V
- Available in 20-Lead Narrow SSOP Package
Product Details
The LTC4244/LTC4244-1 are Hot Swap™ controllers that allow a board to be safely inserted into and removed from a CompactPCI™ bus slot. External N-channel transistors control the 5V and 3.3V supplies while on-chip switches control the ±12V supplies. The 3.3V and 5V supplies can be ramped up at an adjustable rate. Electronic circuit breakers protect all four supplies against overcurrent faults. After the power-up cycle is complete, the TIMER pin capacitor serves as auxiliary VCC allowing the LTC4244/LTC4244-1 to function without interruption in the presence of voltage spikes on the 12VIN supply. The PWRGD output indicates when all four supplies are within tolerance. The OFF/ON pin is used to cycle board power or reset the circuit breaker. The PRECHARGE output can be used to bias the bus I/O pins during card insertion and extraction. PCI_RST# is combined on-chip with HEALTHY# in order to generate LOCAL_PCI_RST#.
Applications
- Hot Board Insertion into CompactPCI Bus
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
R427 Reliability Data3/22/2018PDF16 K
-
Hot Swap Controllers7/13/2017PDF778 K
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTC4244CGN#PBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244CGN#TRPBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244CGN-1#PBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244CGN-1#TRPBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244IGN#PBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244IGN#TRPBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244IGN-1#PBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| LTC4244IGN-1#TRPBF | Material Declaration | Reliability Data | 20-Lead SSOP (Narrow 0.15 Inch) | |
| Wafer Fabrication Data | R427 Reliability Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
LTC4244 Discussions
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.