NCP1379 ON Semiconductor, NCP1379 Datasheet - Page 21
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NCP1379
Manufacturer Part Number
NCP1379
Description
Quasi-Resonant Current-Mode Controller
Manufacturer
ON Semiconductor
Datasheet
1.NCP1379.pdf
(22 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
NCP1379DR2G
Manufacturer:
ON Semiconductor
Quantity:
1 400
Part Number:
NCP1379DR2G
Manufacturer:
ON/安森美
Quantity:
20 000
brown−out resistors.
controller must start switching (V
voltage for shutdown (V
equation to calculate R
V
I
We select:
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
BO
ORDERING INFORMATION
Specifications Brochure, BRD8011/D.
Figure 37. Operating Chronograms in Case of Overvoltage with NCP1379 Supplied by an Auxiliary Power Supply
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NCP1379DR2G
The following equations show how to calculate the
First of all, select the bulk voltage value at which the
+
R
= 10 mA
bol
= 0.8 V
10x10
+
0.8 ( 120 * 60 )
V
V
−6
BO
bulk(on)
I
BO
( 120 * 0.8 )
V
V
bulk(on)
bulk(on)
= 120 V,
Device
bou
* V
bulk(off)
* V
+ 40.3 kW
and R
bulk(off)
BO
V
bulk(off)
). Then use the following
bol
.
bulk(on)
= 60 V
) and the bulk
DESIGN EXAMPLE
(eq. 11)
http://onsemi.com
21
Package Type
(Pb free)
SOIC−8
R
+
bou
40.3x10
+
R
bol
R
3
R
0.8
bol
( 120 * 0.8 )
V
bou
bulk(on)
+
V
+
V
BO
BO
R
I
BO
bol
* V
V
V
+ 6 MW
bulk(on)
V
bulk(on)
BO
bulk(on)
V
2500 / Tape & Reel
BO
* V
* V
Shipping
www.DataSheet4U.com
* V
bulk(off)
BO
BO
†
(eq. 10)
(eq. 12)
(eq. 9)