L4986B
ActiveCONTINUOUS CONDUCTION MODE (CCM) PFC CONTROLLER WITH HIGH VOLTAGE STARTUP AND POWER GOOD
L4986B
ActiveCONTINUOUS CONDUCTION MODE (CCM) PFC CONTROLLER WITH HIGH VOLTAGE STARTUP AND POWER GOOD
Technical Specifications
Parameters and characteristics for this part
| Specification | L4986B |
|---|---|
| Current - Startup | 400 µA |
| Frequency - Switching | 130 kHz |
| Mode | Continuous Conduction (CCM) |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 10-SOP |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 10-SSOP |
| Voltage - Supply [Max] | 24.5 V |
| Voltage - Supply [Min] | 10 VDC |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
Description
General part information
L4986 Series
The L4986 is a peak current-mode PFC controller for boost converter with a proprietary multiplier "emulator" which in addition to the innovative THD optimizers guarantee very low Total Harmonic Distortion (THD) performance in all operating conditions. The device comes in a pin SO package and offers a high performance/low-component count solution for CCM-operated boost PFC pre-regulators in EN61000-3-2 and JEIDA-MITI compliant applications, in a power range that spans from few hundred W to some kW.
The device, thanks to a proprietary off-time modulator, operates in quasi-fixed frequency in all operating conditions. Two options are available, 65 kHz for A and 130 kHz for B.
The 800 V high voltage start-up block includes also the circuitry to discharge the X-capacitors of the EMI filter to a safe level. This allows the unit to meet safety regulation (such as IEC 61010-1 or IEC 62368-1) without using the traditional discharge resistor in parallel to the X-capacitors.
Documents
Technical documentation and resources
