UC2843BNG, шим контроллер 1a 500кгц
Описание
Описание UC2843BNG
The UC2843BNG 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. It 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
| Maximum Operating Temperature | +85 °C |
| Topology | Boost, Flyback |
| Length | 10.16mm |
| Rise Time | 150ns |
| Brand | ON Semiconductor |
| Package Type | PDIP |
| Mounting Type | Through Hole |
| Minimum Operating Temperature | -25 °C |
| Width | 7.11mm |
| Fall Time | 150ns |
| Height | 4.95mm |
| Maximum Switching Frequency | 500 kHz |
| Pin Count | 8 |
| Dimensions | 10.16 x 7.11 x 4.95mm |
| Maximum Duty Cycle | 96% |
| Control Method | Current |
| Output Voltage | 5.05 V |
| Number of PWM Outputs | 1 |
| Output Current | 1 A |
| Typical Operating Supply Voltage | 36 V |
| Вес, г | 1 |