| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Frequency | 250 kHz |
| Number of Pins | 8 Pin |
| Supply Voltage (DC) | 12.0V (min) |
| Voltage Rating (DC) | 40.0 V |
| Operating Voltage | 10V ~ 36V |
| Current Rating | 3.00 A |
| Case/Package | SOIC-8 |
| Halogen Free Status | Halogen Free |
| Number of Outputs | 1 Output |
| Input Voltage (DC) | 30.0 V |
| Output Voltage | 13.4 V |
| Output Current | 1 A |
| Supply Current | 12 mA |
| Number of Positions | 8 Position |
| Power Dissipation | 0.702 W |
| Rise Time | 50 ns |
| Switching Frequency | 500 kHz |
| Topology | Flyback |
| Duty Cycle | 96 % |
| Maximum Duty Cycle | 96 % |
| Fall Time | 50 ns |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Power Dissipation (Max) | 702 mW |
| Supply Voltage | 10V ~ 30V |
| Supply Voltage (Max) | 25 V |
| Supply Voltage (Min) | 12 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tube |
| Size-Length | 5 mm |
| Size-Width | 4 mm |
| Size-Height | 1.5 mm |
| Operating Temperature | 0℃ ~ 70℃ |
The UC3842BD1G is a high-performance fixed frequency current-mode Pulse Width Modulation (PWM) Controller specifically designed for off-line and DC to DC converter applications offering the designer a cost-effective solution with minimal external components. This integrated circuit features a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output deadtime and a latch for single pulse metering.
● Trimmed oscillator for precise frequency control
● Automatic feed forward compensation
● Internally trimmed reference with undervoltage lockout
● High current totem pole output
● Undervoltage lockout with hysteresis
● Low startup and operating current
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