TOP Electronic Industry Co., Ltd.
| Payment Terms | T/T, Western Union, |
| Supply Ability | 1000pcs per month |
| Delivery Time | 3-5 working days after received the payment |
| Packaging Details | Packed in original tray firstly ,then carton, at last Bubble bag for outer packing |
| Function | Step-Up, Step-Down |
| Output Configuration | Positive or Negative |
| Topology | Buck, Boost |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Brand Name | Texas Instruments |
| Model Number | UC2843D8TR |
| Certification | CE, GCF, ROHS |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Western Union, | Supply Ability | 1000pcs per month |
| Delivery Time | 3-5 working days after received the payment | Packaging Details | Packed in original tray firstly ,then carton, at last Bubble bag for outer packing |
| Function | Step-Up, Step-Down | Output Configuration | Positive or Negative |
| Topology | Buck, Boost | Output Type | Adjustable |
| Number of Outputs | 1 | Brand Name | Texas Instruments |
| Model Number | UC2843D8TR | Certification | CE, GCF, ROHS |
| Place of Origin | China | ||
| High Light | UC2843D8TR PWM controller 500kHz ，current-mode PWM controller SOIC-8 ，PWM controller with UVLO 8.4V | ||
UC2843D8TR Current-Mode PWM Controller with 500kHz Operation 8.4V/7.9V UVLO 50mA Totem-Pole Output Internal Trimmed Bandgap Low Start-Up & Operating Current in SOIC-8
Features
• Optimized for off-line and DC-to-DC converters
• Low start-up current (< 1mA)
• Automatic feedforward compensation
• Pulse-by-pulse current limiting
• Enhanced load-response characteristics
• Undervoltage lockout with hysteresis
• Double-pulse suppression
• High-current totem-pole output
• Internally trimmed bandgap reference
• Up to 500kHz operation
• Error amplifier with low output resistance
Applications
• Switching regulators of any polarity
• Transformer-coupled DC-DC converters
Description
The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include an undervoltage lockout (UVLO), featuring a start-up current of less than 1mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to provide latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage that is designed to source or sink high-peak current. The output stage, designed for driving N-channel MOSFETs, is low when the output stage is in the off state.
The UCx84x family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of turnon and turnoff thresholds and hysteresis ranges. Devices with higher turnon or turnoff hysteresis are good choices for off-line power supplies, while the devices with a narrower hysteresis range are designed for DC-DC applications. The UC184x devices are specified for operation from –55°C to 125°C, the UC284x series is specified for operation from –40°C to 85°C, and the UC384x series is specified for operation from 0°C to 70°C.
INFORMATION
| Category | | |
| Manufacturer | Texas Instruments | |
| Series | | |
| Packaging | Tape & Reel (TR) Cut Tape (CT) Digi-Reel® | |
| Part Status | Active | |
| Applications | PWM Controller | |
| Voltage - Input | -0.3V ~ 6.3V | |
| Voltage - Supply | 12V ~ 28V | |
| Current - Supply | 11 mA | |
| Operating Temperature | -40°C ~ 85°C (TA) | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |
| Supplier Device Package | 8-SOIC | |
| Base Product Number |
Drawing
Our advantage :phones, PDA's, notebook comput.ers
be sure to meet your need for all kinds of components. ^_^
Product List
Supply a Series of Electronic Components, full range of semiconductors, active & passive Components.We can help you to get all for bom of the PCB,IN a word, you can get one-stop solution here,
The offers including:
Integrated Circuit, Memory ICs, Diode, Transistor , Capacitor, Resistor, Varistor, Fuse, Trimmer & Potentiometer, Transformer, Battery, Cable, Relay, Switch, Connector, Terminal Block, Crystal & Oscillator, Inductor, Sensor, Transformer, IGBT Driver, LED,LCD, Convertor, PCB (Printed Circuit Board),PCBA (PCB Assembly)
Strong in Brand:
Microchip, MAX, AD, TI, ATMEL, ST, ON, NS, Intersil, Winbond, Vishay, ISSI, Infineon, NEC, FAIRCHILD, OMRON,YAGEO, TDK, etc
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
>10000000
Employee Number:
>20
Ecer Certification：
Verified Supplier
Thank you for your time to know our company and lean our production. TOP Electronic Industry co., Ltd was established in 2006. After 10 years effort and development, now we have become one of the leading electronic components distributors in China. We keep very kind relationship with our su... Thank you for your time to know our company and lean our production. TOP Electronic Industry co., Ltd was established in 2006. After 10 years effort and development, now we have become one of the leading electronic components distributors in China. We keep very kind relationship with our su...
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