DocumentationDatasheet
Reliability Data
LT Journal
- Aug 2002 - Low Voltage, High Current DC/DC Power Supply with Load Sharing and Redundancy
- June 2003 - Combo Hot Swap/Load Share Controller Allows the Use of Standard Power Modules in Redundant Power Systems (by Vladimir Ostrerov and David Soo)
- June 2008 - Hot Swap Controller Enables Standard Power Supplies to Share Load
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Features
- Not Recommended For New Designs - Contact Linear Technology For Replacements
- Build N + 1 Redundant Supply
- Hot Swap™ Power Supplies
- Isolates Supply Failures from Output
- Eliminates ORing Diodes
- Identifies and Localizes Output Low, Output High and Open-Circuit Faults
- Output Voltages from 1.5V to 12V
- 16-Lead Narrow SSOP Package
Typical Application
Description
The LTC4350 is a load share controller that allows systems to equally load multiple power supplies connected in parallel. The output voltage of each supply is adjusted using the SENSE+ input until all currents match the share bus. The LTC4350 also isolates supply failures by turning off the series pass transistors and identifying the failed supply. The failed supply can then be removed and replaced with a new unit without turning off the system power. The LTC4350 is available in a 16-pin narrow SSOP package.
SSOP-16
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC4350CGN#TRPBF | SSOP | 16 | C | $4.31 | |
| LTC4350CGN#PBF | SSOP | 16 | C | $5.83 | $4.25 |
| LTC4350IGN#TRPBF | SSOP | 16 | I | $5.00 | |
| LTC4350IGN#PBF | SSOP | 16 | I | $6.50 | $4.95 |
| LTC4350CGN | SSOP | 16 | C | $11.66 | $8.50 |
| LTC4350CGN#TR | SSOP | 16 | C | $8.62 | |
| LTC4350IGN | SSOP | 16 | I | $13.00 | $9.90 |
| LTC4350IGN#TR | SSOP | 16 | I | $10.00 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.