Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TYN256P Datasheet(PDF) 7 Page - Power Integrations, Inc.

Part No. TYN256P
Description  Energy Efficient, Low Power Off-line Switcher
Download  20 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  POWERINT [Power Integrations, Inc.]
Homepage  http://www.powerint.com
Logo 

TYN256P Datasheet(HTML) 7 Page - Power Integrations, Inc.

Zoom Inzoom in Zoom Outzoom out
 7 / 20 page
background image
B
8/99
TNY256
7
Figure 12. 5.5 W AC Adaptor with Universal Input (85-265 VAC).
through the TL431 voltage reference for proper regulation.
Capacitor C11 bypasses the TL431 response for improved
ripple performance. Resistor R5 determines the AC gain of the
circuit.
Key Application Considerations
For the most up to date information visit our website
at:
www.powerint.com
Design
Output Power
Table 1 shows the practical maximum continuous output power
levels obtainable under following conditions:
1. The minimum DC input voltage is 90 V or higher for 85 VAC
input or 240 V or higher for 230VAC input or 115 VAC
input with a voltage doubler. This corresponds to a filter
capacitor of 3
µF/W for universal input and 1 µF/W for 230
or 115 VAC w/doubler input.
2. A secondary output of 5 V with a Schottky rectifier diode.
3. The P and G packaged parts are board mounted with source
pins soldered to sufficient area of copper and the Y packaged
parts are heat sinked sufficiently to keep the die temperature
at or below 100 oC.
The maximum power capability of TinySwitch in a given
application depends on the thermal environment (sealed
enclosure, ventilated, open frame, etc.,), transformer core size
and design (continuous or discontinuous), efficiency required,
minimum specified input voltage, input storage capacitance,
output voltage, output diode forward drop, etc., and can be
different from the values shown in Table 1.
Audible Noise
At loads other than maximum load, the cycle skipping mode
operation used in TinySwitch can generate audio frequency
components in the transformer. This can cause the transformer
to produce audio noise. Transformer audible noise can be
reduced by using appropriate transformer construction
techniques and decreasing the peak flux density. For more
information on audio suppression techniques, please check the
Application Notes section on our web site at www.powerint.com.
Ceramic capacitors that use dielectrics such as Z5U, when used
in clamp and snubber circuits, can also generate audio noise due
to electrostriction and piezo-electric effects. If this is the case,
replacing them with a capacitor having a different type of
dielectric is the simplest solution. Polyester film capacitors and
ceramic capacitors with dielectrics such as NPO or X7R are
good alternatives.
PI-2502-072699
TinySwitch Plus
D
S
EN/UV
BP
+ 9 V
0.6 A
RTN
D1
1N4005
C1
10
µF
400 V
Fusible
RF1
10
C4
0.1
µF
85-265
VAC
L1
470
µH
D2
1N4005
D3
1N4005
D4
1N4005
R3
330 K
1/4 W
U2
SFH615-2
D6
MBR360
L3
18
µH
C6
330
µF
16 V
C2
10
µF
400 V
C8
220
µF
10 V
R5
100
R9
470
U3
TL431CLP
C5
2200 pF
Y1 Safety
U1
TNY256P
C3
10 nF
D5
1N4937
T1
R1
4.7 K
1
4
8
10
R7
26.1 K
R8
10 K
C11
0.1
µF
C7
330
µF
16 V
2
NC


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn