UC2843AQDRHT
ActiveCURRENT MODE PWM CONTROLLER
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UC2843AQDRHT
ActiveCURRENT MODE PWM CONTROLLER
Deep-Dive with AI
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | UC2843AQDRHT | UC2843 Series |
|---|---|---|
| Applications | - | PWM Controller |
| Clock Sync | False | False |
| Control Features | Frequency Control | Frequency Control |
| Current - Supply | - | 11 mA |
| Duty Cycle (Max) [Max] | 96 % | 96 - 97 % |
| Function | Step-Up | Step-Down, Step-Up/Step-Down, Step-Up |
| Grade | Automotive | Automotive |
| Mounting Type | Surface Mount | Surface Mount, Through Hole |
| Number of Outputs | 1 | 1 |
| Operating Temperature [Max] | 125 °C | 85 - 125 °C |
| Operating Temperature [Min] | -40 °C | -40 °C |
| Output Configuration | Positive, Isolation Capable | Positive, Isolation Capable |
| Output Phases | 1 | 1 |
| Output Type | Transistor Driver | Transistor Driver |
| Package / Case | 3.9 mm | 3.9 mm |
| Package / Case | 0.154 in | 0.154 - 7.62 in |
| Package / Case | 14-SOIC | 16-SOIC, 20-LCC (J-Lead), 14-SOIC, 8-SOIC, 8-DIP |
| Package / Case | - | 0.3 - 3.9 mm |
| Qualification | AEC-Q100 | AEC-Q100 |
| Supplier Device Package | - | 16-SOIC, 20-PLCC (9x9), 8-SOIC, 8-PDIP |
| Synchronous Rectifier | False | False |
| Topology | Buck, Forward, Boost, Flyback | Buck, Forward, Boost, Flyback, Buck-Boost |
| Voltage - Input | - | -3 V |
| Voltage - Input | - | 6.3 V |
| Voltage - Supply | - | 28 - 30 VDC |
| Voltage - Supply | - | 7.6 - 12 V |
| Voltage - Supply (Vcc/Vdd) [Max] | 30 V | 28 - 30 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 7.6 V | 7.6 - 12 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 211 | $ 1.42 | |
UC2843 Series
30-V, 1-A, 500KHz current mode PWM controller with 8.4V/7.6V UVLO 100% duty cycle 40°C to 85°C
| Part | Topology | Output Type | Number of Outputs | Clock Sync | Package / Case | Function | Supplier Device Package | Output Phases | Operating Temperature [Max] | Operating Temperature [Min] | Duty Cycle (Max) [Max] | Synchronous Rectifier | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Control Features | Mounting Type | Output Configuration | Current - Supply | Voltage - Supply [Max] | Voltage - Supply [Min] | Voltage - Input [Min] | Voltage - Input [Max] | Applications | Package / Case | Package / Case | Qualification | Grade | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments UC2843ADW | Boost, Buck, Flyback, Forward | Transistor Driver | 1 | 16-SOIC | Step-Down, Step-Up, Step-Up/Step-Down | 16-SOIC | 1 | 85 °C | -40 °C | 96 % | 30 V | 7.6 V | Frequency Control | Surface Mount | Isolation Capable, Positive | |||||||||||||
Texas Instruments UC2843AQ | 20-LCC (J-Lead) | 20-PLCC (9x9) | 125 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.9 V | -3 V | 6.3 V | PWM Controller | |||||||||||||||||
Texas Instruments UC2843DG4 | 14-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in | ||||||||||||||||
Texas Instruments UC2843ADG4 | 14-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in | AEC-Q100 | Automotive | ||||||||||||||
Texas Instruments UC2843D8TRG4 | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | ||||||||||||||||
Texas Instruments UC2843AQD8R | 8-SOIC | 8-SOIC | 125 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.9 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | ||||||||||||||||
Texas Instruments UC2843N | 8-DIP | 8-PDIP | 85 °C | -40 °C | Through Hole | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 7.62 mm | 0.3 in | |||||||||||||||
Texas Instruments UC2843P | Boost, Buck, Buck-Boost, Flyback, Forward | Transistor Driver | 1 | 8-DIP | Step-Down, Step-Up, Step-Up/Step-Down | 8-PDIP | 1 | 85 °C | -40 °C | 97 % | 28 V | 12 V | Frequency Control | Through Hole | Isolation Capable, Positive | 7.62 mm | 0.3 in | |||||||||||
Texas Instruments UC2843AQDRHT | Boost, Buck, Flyback, Forward | Transistor Driver | 1 | 14-SOIC | Step-Up | 1 | 125 °C | -40 °C | 96 % | 30 V | 7.6 V | Frequency Control | Surface Mount | Isolation Capable, Positive | 3.9 mm | 0.154 in | AEC-Q100 | Automotive | ||||||||||
Texas Instruments UC2843ANG4 | 8-DIP | 8-PDIP | 85 °C | -40 °C | Through Hole | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | 7.62 mm | AEC-Q100 | Automotive | 0.3 in | |||||||||||||
Texas Instruments UC2843D8G4 | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | ||||||||||||||||
Texas Instruments UC2843AD8G4 | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | AEC-Q100 | Automotive | 3.9 mm | ||||||||||||||
Texas Instruments UC2843AN | 8-DIP | 8-PDIP | 85 °C | -40 °C | Through Hole | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | 7.62 mm | AEC-Q100 | Automotive | 0.3 in | |||||||||||||
Texas Instruments UC2843AQDR | 14-SOIC | 125 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.9 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in | ||||||||||||||||
Texas Instruments UC2843ADTR | 14-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in | AEC-Q100 | Automotive | ||||||||||||||
Texas Instruments UC2843AD8TR | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | AEC-Q100 | Automotive | 3.9 mm | ||||||||||||||
Texas Instruments UC2843D8TR | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | ||||||||||||||||
Texas Instruments UC2843NG4 | 8-DIP | 8-PDIP | 85 °C | -40 °C | Through Hole | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 7.62 mm | 0.3 in | |||||||||||||||
Texas Instruments UC2843DTR | 14-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in | ||||||||||||||||
Texas Instruments UC2843AD8TRG4 | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | AEC-Q100 | Automotive | 3.9 mm | ||||||||||||||
Texas Instruments UC2843AQD8RQ1 | 8-SOIC | 8-SOIC | 125 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.9 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | ||||||||||||||||
Texas Instruments UC2843D | 14-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 28 V | 12 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in | ||||||||||||||||
Texas Instruments UC2843AD8 | 8-SOIC | 8-SOIC | 85 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.6 V | -3 V | 6.3 V | PWM Controller | AEC-Q100 | Automotive | 3.9 mm | ||||||||||||||
Texas Instruments UC2843AQD | 14-SOIC | 125 °C | -40 °C | Surface Mount | 11 mA | 30 VDC | 7.9 V | -3 V | 6.3 V | PWM Controller | 3.9 mm | 0.154 in |
Description
General part information
UC2843 Series
The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5mA, oscillator discharge is trimmed to 8.3mA, and during UVLO, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5mA, oscillator discharge is trimmed to 8.3mA, and during UVLO, the output stage can sink at least 10mA at less than 1.2V for VCC over 5V.
Documents
Technical documentation and resources