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TI UC2845AQD8R
Power Supply Controller PWM Controller 8-SOIC
Brands: ti
Mfr.Part #: UC2845AQD8R
Datasheet: UC2845AQD8R Datasheet (PDF)
Package/Case: SOIC (D)-8
RoHS Status:
Stock Condition: 6025 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $1.203 | $1.203 |
| 10 | $1.009 | $10.090 |
| 30 | $0.902 | $27.060 |
| 100 | $0.781 | $78.100 |
| 500 | $0.729 | $364.500 |
| 1000 | $0.703 | $703.000 |
In Stock:6025 PCS
UC2845AQD8R General Description
The UC2842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC2842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.
The difference between members of this family are shown in the table below.
Features
- Extended Temperature Performance of –40°C to 125°C
- Optimized for Off-line and DC to DC Converters
- Low Start Up Current (<0.5 mA)
- Trimmed Oscillator Discharge Current
- Automatic Feed Forward Compensation
- Pulse-by-Pulse Current Limiting
- Enhanced Load Response Characteristics
- Under-Voltage Lockout With Hysteresis
- Double Pulse Suppression
- High Current Totem Pole Output
- Internally Trimmed Bandgap Reference
- 500 kHz Operation
- Low RO Error Amp
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Topology | Boost, Flyback, Forward | Control mode | Current |
| Duty cycle (max) (%) | 50 | Switching frequency (max) (kHz) | 500 |
| Features | Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Multi-topology | UVLO thresholds on/off (V) | 8.5/7.9 |
| Operating temperature range (°C) | -40 to 125 | Rating | Automotive |
| Gate drive (typ) (A) | 1 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The UC2845AQD8R is a current-mode PWM controller integrated circuit designed for controlling power supplies. It operates at a fixed frequency, adjustable duty cycle, and is capable of driving MOSFETs for high efficiency power conversion. It includes functions like soft-start, error amplifiers, and overload protection, making it suitable for a wide range of applications.
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Equivalent
The equivalent products of UC2845AQD8R chip are UC1845 and TL3845P. These chips are PWM controllers used in power supply applications requiring high efficiency and precise control of voltage regulation. -
Features
UC2845AQD8R is a high-performance current-mode PWM controller that features a 1MHz switching frequency, 1A peak output current, adjustable soft-start, UVLO protection, and overcurrent protection. It is designed for use in off-line flyback converters and other applications where high efficiency and reliability are required. -
Pinout
The UC2845AQD8R is an 8-pin integrated circuit (IC). It functions as a current-mode PWM controller, commonly used in power supply applications. It regulates pulse width modulation (PWM) signals to control the output voltage of power converters. -
Manufacturer
Texas Instruments is the manufacturer of UC2845AQD8R. Texas Instruments is an American company that designs and manufactures semiconductors and various integrated circuits for a wide range of applications, including automotive, industrial, and consumer electronics. They are a leading supplier in the global semiconductor market. -
Application Field
UC2845AQD8R is a versatile PWM controller IC commonly used in power supply and motor control applications. It is suitable for use in boost, buck, flyback, and forward converters, as well as in adjustable voltage regulators. Other potential applications include battery chargers, LED drivers, and uninterruptible power supplies. -
Package
The UC2845AQD8R chip is in a 14-SOIC package type, has a D8R form, and a size of 14-pin.
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