The UC2843ADG4 is a current-mode PWM controller optimized for off-line and DC-DC converters. It features a low start-up current of less than 0.5mA and operates at a maximum frequency of 500kHz. The device includes automatic feedforward compensation, pulse-by-pulse current limiting, and enhanced load response characteristics. It also has undervoltage lockout with hysteresis and double pulse suppression, making it suitable for various applications including switch mode power supplies and battery-operated power supplies. The UC2843ADG4 is available in a 14-SOIC package and supports a supply voltage range of 7.6V to 30V with a maximum duty cycle of 96%. This product is compliant with halogen-free standards and has an estimated end-of-life date in 2028.
Boost, Buck, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
Manufacturer: Texas Instruments
Win Source Part Number: 1275764-UC2843ADG4
Packaging: Tube
Operating Temperature Range: -40°C ~ 85°C (TA)
Package: 14-SOIC (0.154", 3.90mm Width)
Output Type: Transistor Driver
Function: Step-Up, Step-Up/Step-Down
Topology: Boost, Flyback, Forward Converter
Frequency - Switching: 500kHz
Control Features: Frequency Control
Supply Voltage: 7.6 V ~ 30 V
Number of Outputs: 1
Output Configuration: Positive, Isolation Capable
Synchronous Rectifier: No
Family Name: UC2843A
Output Phases: 1
Clock Sync: No
Categories: Integrated Circuits (ICs)
Manufacturer Homepage: www.ti.com
Manufacturer Package: 14-SOIC
Duty Cycle (Maximum): 96%
Alternative Parts (Cross-Reference): UC2843ADWTRG4; UC2843AJ; UC2843ADWG4;
Introduction Date: July 19, 2005
ECCN: EAR99
Country of Origin: Mexico
Estimated EOL Date: 2028
Halogen Free: Compliant
Popularity: Medium
Fake Threat In the Open Market: 30 pct.
Supply and Demand Status: Limited
Boost, Buck, Flyback, Forward Regulator Positive, Isolation Capable Output Step-Up, Step-Down, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
IC REG CTRLR MULT TOP 14SOIC
Switching Controllers Current-Mode PWM Controller
| DigiKey | Win Source Electronics | Quarktwin Technology Ltd. | Lingto Electronic Limited | VAST STOCK CO., LIMITED | |
|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | 296-36170-5-ND | 1275764-UC2843ADG4 | UC2843ADG4 | UC2843ADG4 | UC2843ADG4 |
| Product Name | DC DC Switching Controllers | PMIC - PMIC - Voltage Regulators - DCDC Switching Controllers - UC2843ADG4 | DC DC Switching Controllers | PMIC - Voltage Regulators - DC DC Switching Controllers | Switching Controllers |
| Configuration / Function | Buck | Boost, Flyback, Forward Converter | |||
| Package Type | SOIC; Other; "14-SOIC (0.154"", 3.90mm Width)" | SOIC; Other; 14-SOIC (0.154", 3.90mm Width) | SOIC; Other; 14-SOIC (0.154\", 3.90mm Width) | ||
| VIN | -0.3000 to 6.3 volts | 7.6 to 30 volts | |||
| fsw | 500 kHz | 500 kHz | |||
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) |
