Current Mode PWM Controller آیسی PWM اریجینال TI اس ام دی
Current Mode PWM Controller
آیسی PWM اریجینال TI اس ام دی
ویژگی ها:
استفاده در انواع صنایع از جمله بردهای درایو دستگاه های جوش و برش و اینورتری
مخابراتی
مدارات عمومی
درایورهای دور موتور و .....
1 Features 3 Description
The UC1846/7 family of control devices provides all 1• Automatic Feedforward Compensation
• Programmable Pulse-by-Pulse Current Limiting of the necessary features to implement fixed- frequency, current-mode control schemes while
• Automatic Symmetry Correction in Push-Pull maintaining a minimum external parts count. The
Configuration superior performance of this technique can be
• Enhanced Load Response Characteristics measured in improved line regulation, enhanced load
• Parallel Operation Capability for Modular Power response characteristics, and a simpler, easier-to- design control loop. Topological advantages include
Systems inherent pulse-by-pulse current limiting capability,
• Differential Current Sense Amplifier with Wide automatic symmetry correction for push-pull
Common Mode Range converters, and the ability to parallel power modules
• Double-Pulse Suppression while maintaining equal current sharing.
• 500-mA (Peak) Totem-pole Outputs Protection circuitry includes built-in undervoltage
• ±1% Band Gap Reference lockout and programmable current limit, in addition to
soft-start capability. A shutdown function is also
• Undervoltage Lockout available, which can initiate either a complete
• Soft-Start Capability shutdown with automatic restart or latch the supply
• Shutdown Terminal off.
• 500-kHz Operation Other features include fully-latched operation, doublepulse
suppression, deadline adjust capability, and a
2 Applications ±1% trimmed band gap reference.
• Telecommunication Power Converters The UC1846 features low outputs in the OFF state,
• Industrial Power Converters while the UCx847 features high outputs in the OFF
state.
کانورتر افلاین تا 132 کیلوهرتز TOP244 700V IC OFFLINE SWIT OVP UVLO HV 8DIP Converter Offline Flyback Topology 66kHz ~ 132kHz DIP-8B Power Integrations
درایور تریاک اپتوکوپلری 800 ولت 1 کانال 5K ولت ایزوله،اپتو ترایاک 6 پین DIP 800V Zero Crossing Triac Driver Output Optocoupler,DIP-6
ای سی تقویت کننده،اپ امپ 4 تایی با پهنای باند 1.3 مگاهرتز و ولتاژ کاری 32 ولت LOW POWER QUAD OPERATIONAL AMPLIFIERS
رگلاتور متغیر 1.2 تا 37 ولت 0.5 آمپر قابل تنظیم اس ام دی - -500mA,1.2V TO 37V, adjustable linear voltage regulator for automotive applications