L4981A STMicroelectronics, L4981A Datasheet - Page 13

IC PFC CTRLR AVERAGE CURR 20DIP

L4981A

Manufacturer Part Number
L4981A
Description
IC PFC CTRLR AVERAGE CURR 20DIP
Manufacturer
STMicroelectronics
Datasheet

Specifications of L4981A

Mode
Average Current
Frequency - Switching
100kHz
Current - Startup
100µA
Voltage - Supply
14.5 V ~ 19.5V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Switching Frequency
115 KHz
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
For Use With
497-5523 - EVAL BOARD FOR L4981
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
497-3634

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DEMO BOARD EVALUATION RESULTS
Table 2. Nominal Power range at 110Vac.
Table 3. Nominal Power range at 220Vac.
REFERENCE:
AN628 - DESIGNING A HIGH POWER FACTOR SWITCHING PREREGULATOR WITH THE L4981
110Vac
132Vac
176Vac
220Vac
264Vac
88Vac
V
V
mains
mains
CONTINUOUS MODE
366W
370W
372W
378W
381W
381W
P
P
out
out
404Vdc
406Vdc
407Vdc
410Vdc
412Vdc
412Vdc
V
V
out
out
397W
395W
394W
394W
395W
395W
P
P
in
in
2.2%
4.7%
6.4%
8.1%
THD
THD
5%
3%
0.998
0.999
0.999
0.997
0.993
0.987
PF
PF
L4981A - L4981B
.945
.959
.964
.964
Eff.
Eff.
.92
.94
13/16

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