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Technical Specifications
Parameters and characteristics for this part
| Specification | L4984DTR |
|---|---|
| Current - Startup | 65 µA |
| Mode | Continuous Conduction (CCM) |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 C |
| Package / Case | 0.154 in, 3.9 mm |
| Package / Case | 10-SOP |
| Supplier Device Package | 10-SSOP |
| Voltage - Supply [Max] | 22.5 V |
| Voltage - Supply [Min] | 10.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | N/A | 3538 | $ 2.10 | |
Description
General part information
L4984D Series
The L4984D is a current-mode PFC controller operating with line-modulated fixed-off-time (LM-FOT) control. A proprietary LM-FOT modulator allows fixed-frequency operation for boost PFC converters as long as they are operated in CCM (continuous conduction mode).
The chip comes in a 10-pin SO package and offers a low-cost 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 1 KW and above.
The highly linear multiplier includes a special circuit, able to reduce the crossover distortion of the AC input current, that allows wide-range-mains operation with a reasonably low THD, even over a large load range.
