UC1843AY
ActivePWM CONTROLLER FLYBACK OR FORWARD - LOW START-UP CURRENT (0.5MA MAX.) 500KHZ OP
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UC1843AY
ActivePWM CONTROLLER FLYBACK OR FORWARD - LOW START-UP CURRENT (0.5MA MAX.) 500KHZ OP
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Technical Specifications
Parameters and characteristics for this part
| Specification | UC1843AY |
|---|---|
| Clock Sync | False |
| Control Features | Frequency Control |
| Duty Cycle (Max) [Max] | 96 % |
| Function | Step-Down, Step-Up |
| Mounting Type | Through Hole |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -55 °C |
| Output Configuration | Positive, Isolation Capable |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 7.62 mm |
| Package / Case | 0.3 in |
| Package / Case | 8-CDIP |
| Supplier Device Package | 8-CERDIP |
| Synchronous Rectifier | False |
| Topology | Flyback, Boost, Forward, Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 30 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 7.6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Microchip Direct | N/A | 1 | $ 58.87 | |
UC1843A Series
PWM Controller flyback or forward - Low start-up current (0.5mA max.) 500KHz op
| Part | Number of Outputs | Supplier Device Package | Control Features | Output Phases | Function | Topology | Mounting Type | Clock Sync | Duty Cycle (Max) [Max] | Synchronous Rectifier | Operating Temperature [Max] | Operating Temperature [Min] | Output Configuration | Output Type | Package / Case | Package / Case | Package / Case | Voltage - Supply (Vcc/Vdd) [Min] | Voltage - Supply (Vcc/Vdd) [Max] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Microchip Technology UC1843AY | 1 | 8-CERDIP | Frequency Control | 1 | Step-Down, Step-Up | Boost, Buck, Flyback, Forward | Through Hole | 96 % | 125 °C | -55 °C | Isolation Capable, Positive | Transistor Driver | 7.62 mm | 0.3 in | 8-CDIP | 7.6 V | 30 V |
Description
General part information
UC1843A Series
Control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by- pulse current limiting and inherent protection of the power supply output switch
Documents
Technical documentation and resources