| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 8 Pin |
| Case/Package | VSSOP-8 |
| Output Current | 1.45 A |
| Number of Regulated Outputs | 1 Output |
| Rise Time | 25 ns |
| Switching Frequency | 150kHz ~ 1MHz |
| Topology | Flyback |
| Duty Cycle | 80 % |
| Maximum Duty Cycle | 85 % |
| Fall Time | 10 ns |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 125℃ (TJ) |
The LM5021 off-line pulse width modulation (PWM) controller contains all of the features needed to implement highly efficient off-line single-ended flyback and forward power converters using current-mode control. The LM5021 features include an ultra-low (25 µA) start-up current, which minimizes power losses in the high voltage start-up network. A skip cycle mode reduces power consumption with light loads for energy conserving applications (ENERGY STAR®, CECP, and so forth). Additional features include under-voltage lockout, cycle-by-cycle current limit, hiccup mode overload protection, slope compensation, soft-start and oscillator synchronization capability. This high performance 8-pin IC has total propagation delays less than 100 ns and a 1-MHz capable oscillator that is programmed with a single resistor.
TI
Current Mode PWM Controller 135kHz to 165kHz/440kHz to 560kHz Automotive 8Pin VSSOP T/R
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