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Details, datasheet, quote on part number:LM5021NA-2
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| Part: | LM5021NA-2 |
| Category: | Power Management => AC-DC Converters |
| Description: | AC-DC Current Mode PWM Controller
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, etc.). 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 100nS and a 1MHz capable oscillator that is programmed with a single resistor.
Features
Ultra Low Start-up Current (25 µA maximum)
Current Mode Control
Skip Cycle Mode for Low Standby Power
Single Resistor Programmable Oscillator
Synchronizable Oscillator
Adjustable Soft-start
Integrated 0.7A Peak Gate Driver
Direct Opto-Coupler Interface
Maximum Duty Cycle Limiting (80% for LM5021-1 or 50% for LM5021-2)
Slope Compensation for (LM5021-1 Only)
Under Voltage Lockout (UVLO) with Hysteresis
Cycle-by-Cycle Over-Current Protection
Hiccup Mode for Continuous Overload Protection
Leading Edge Blanking of Current Sense Signal
Packages: MSOP-8 or MDIP-8 |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM5021NA-2 datasheet File size : 765 kB |
| Request For quote: | Find where to buy LM5021NA-2
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