E-L4981AD 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

E-L4981AD

POWER FACTOR CORRECTOR

STMicroelectronics 

DEMO BOARD EVALUATION RESULTS

Table 2. Nominal Power range at 110Vac.

Vmains

88Vac

110Vac

132Vac

Pout

366W

370W

372W

Vout

404Vdc

406Vdc

407Vdc

Table 3. Nominal Power range at 220Vac.

Vmains

176Vac

220Vac

264Vac

Pout

378W

381W

381W

Vout

410Vdc

412Vdc

412Vdc

Pin

397W

395W

394W

Pin

394W

395W

395W

THD

5%

2.2%

3%

THD

4.7%

6.4%

8.1%

L4981A - L4981B

PF

Eff.

0.998

.92

0.999

.94

0.999

.945

PF

Eff.

0.997

.959

0.993

.964

0.987

.964

REFERENCE:

AN628 - DESIGNING A HIGH POWER FACTOR SWITCHING PREREGULATOR WITH THE L4981

CONTINUOUS MODE

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