(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
DescriptionThe UC1846-EP control IC provides all of the necessary features to implement fixed-frequency, current-mode control schemes, while maintaining a minimum external parts count. The superior performance of this technique can be measured in improvedlineregulation,enhancedload-responsecharacteristics,and asimpler,easier-to-designcontrolloop.Topologicaladvantagesinclude inherent pulse-by-pulse current-limiting capability, automatic symmetrycorrectionforpush-pullconverters,andtheabilitytoparallel power modules, while maintaining equal current sharing.
Protectioncircuitryincludesbuilt-inundervoltagelockoutandprogrammable current limit, in addition to soft-start capability. A shutdownfunctionisalsoavailable,whichcaninitiateeitheracomplete shutdown with automatic restart or latch the supply off.
Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a ±1% trimmed bandgap reference.
TheUC1846-EPfeatureslowoutputsintheOFFstate.
Feature
- Controlled Baseline
- One Assembly/Test Site, One Fabrication Site
- Extended Temperature Performance of -55°C to 125°C
- Enhanced Diminishing Manufacturing Sources (DMS) Support
- Enhanced Product-Change Notification
- Qualification Pedigree(1)
- Automatic Feed-Forward Compensation
- Programmable Pulse-by-Pulse Current Limiting
- Automatic Symmetry Correction in Push-Pull Configuration
- Enhanced Load-Response Characteristics
- Parallel Operation Capability for Modular Power Systems
- Differential Current-Sense Amplifier With Wide Common-Mode Range
- Double Pulse Suppression
- 500-mA (Peak) Totem-Pole Outputs
- ±1% Bandgap Reference
- Undervoltage Lockout
- Soft-Start Capability
- Shutdown Terminal
- 500-kHz Operation
(1)Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
DescriptionThe UC1846-EP control IC provides all of the necessary features to implement fixed-frequency, current-mode control schemes, while maintaining a minimum external parts count. The superior performance of this technique can be measured in improvedlineregulation,enhancedload-responsecharacteristics,and asimpler,easier-to-designcontrolloop.Topologicaladvantagesinclude inherent pulse-by-pulse current-limiting capability, automatic symmetrycorrectionforpush-pullconverters,andtheabilitytoparallel power modules, while maintaining equal current sharing.
Protectioncircuitryincludesbuilt-inundervoltagelockoutandprogrammable current limit, in addition to soft-start capability. A shutdownfunctionisalsoavailable,whichcaninitiateeitheracomplete shutdown with automatic restart or latch the supply off.
Other features include fully latched operation, double pulse suppression, deadline adjust capability, and a ±1% trimmed bandgap reference.
TheUC1846-EPfeatureslowoutputsintheOFFstate.
