| shape: | SMD |
|---|---|
| Conductive Type: | Standard |
| Technics: | Semiconductor IC |
| Application: | Standard Generalized Integrated Circuit |
| Type: | Current Mode PWM Controller |
| Output Current: | 500 Ma |
| Samples: |
|---|
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The UC1846DW family of control ICs provides all of the necessary features to implement fixed frequency,current-mode control schemes while maintaining a minimum external parts count.Thesuperior performance of this technique can be measured in im-proved line regulation, enhanced load response characteristics,anda simpler, easier-to-design control loop.Topological advantages in-clude inherent pulse-by-pulse current limiting capability,automaticsymmetry correction for push-pull converters,and the ability to par-allel "power modules" while maintaining equal current sharing.Protection circuitry includes built-in under-voltage lockout and pro-grammable current limit in addition to soft start capability.A shut-down function is also available which can initiate either a complete shut down with automatic restart or latch the supply off.Other features include fully latched operation, double pulse sup-pression,deadline adjust capability,and a±1% trimmed bandgapreference.The UC1846 features low outputs in the OFF state,while the UC1847 features high outputs in the OFF state.
1.Pin Diagram :
2. Absolute Maximum Ratings :
3. Electrical Characteristics @ TJ = 25°C (unless otherwise specified) :
• Automatic Feed Forward Compensation
• Programmable Pulse-by-Pulse CurrentLimiting
• Automatic Symmetry Correction in Push-pullConfiguration
• Enhanced Load Response Characteristics
• Parallel Operation Capability for ModularPower Systems
• Differential Current Sense Amplifier withWide Common Mode Range
• Double Pulse Suppression
• 500mA (Peak) Totem-pole Outputs
• ±1% Bandgap Reference
• Under-voltage Lockout
• Soft Start Capability
• Shutdown Terminal
• 500kHZ Operation
• Telecommunication Power Converters
• Industrial Power Converters
why choose us :
advantage:
1.Produce Range
Yangjiang RUIXIAO Enterprise Co,.Ltd,major in the electronic component , who have wide range of products,
such as IC,resistor , capacitor , mosfet , diodes, module , LED, relay, lcd. pcb board . and so. the brand involves:SHARP, POWER, , NS, ON, ST , IR, VISHAY , TOSHIBA, FAIRCHILD,MICROCHIP, ATMEL,EVERYLIGHT all the kinds of electronic component you need will be find in here.
2.Production workshop
3.Scope of application
the product is widely used in Automotive industry control,new energy industry,Audio,Home appliances equipment,Communication industry.it can meet the diverse needs of customers
4.service:
with the "User first, customer first" Company motto, quality assurance , economic price , fast Delivery time is our only faith. we will try our best to make every customer to enjoy the the most flexible,efficient services.We sincere hope that we can seek the common development and cooperation with the customer together to achieve a win-win situation.
5.Logistics:
we can send the goods to the customer's country directly by the international logistics. no matter send by air or by sea.
we will try our best to let the customer to get the parcel more convenient .
(noted:Not bear any fee and tax of the transportation cost.)
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