Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LNK500 Datasheet(PDF) 1 Page - Power Integrations, Inc.

Part No. LNK500
Description  Energy Efficient, CV or CV/CC Switcher for Very Low Cost Adapters and Chargers
Download  20 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  POWERINT [Power Integrations, Inc.]
Homepage  http://www.powerint.com
Logo 

LNK500 Datasheet(HTML) 1 Page - Power Integrations, Inc.

 
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
Figure 1. Typical Application – not a Simplified Circuit (a) and
Output Characteristic Tolerance Envelopes (b).
Product Highlights
Cost Effective Linear/RCC Replacement
• Lowest cost and component count, constant voltage (CV)
or constant voltage/constant current (CV/CC) solution
• Extremely simple circuit configuration
• Up to 75% lighter power supply reduces shipping cost
• Primary based CV/CC solution eliminates 10 to 20
secondary components for low system cost
• Combined primary clamp, feedback, IC supply, and loop
compensation functions–minimizes external components
• Fully integrated auto-restart for short circuit and open
loop fault protection–saves external component costs
• 42 kHz operation simplifies EMI filter design
Much Higher Performance Over Linear/RCC
• Universal input range allows worldwide operation
• Up to 70% reduction in power dissipation–reduces
enclosure size significantly
• CV/CC output characteristic without secondary feedback
• System level thermal and current limit protection
• Meets all single point failure requirements with only one
additional clamp capacitor
• Controlled current in CC region provides inherent soft-start
• Optional opto feedback improves output voltage accuracy
EcoSmart - Extremely Energy Efficient
• Consumes <300 mW at 265 VAC input with no load
• Meets Blue Angel, Energy Star, and EC requirements
• No current sense resistors–maximizes efficiency
Applications
• Linear transformer replacement in all
≤3 W applications
• Chargers for cell phones, cordless phones, PDAs, digital
cameras, MP3/portable audio devices, shavers, etc.
• Home appliances, white goods and consumer electronics
• TV standby and other auxiliary supplies
Description
LinkSwitch is specifically designed to replace low power linear
transformer/RCC chargers and adapters at equal or lower system
costwithmuchhigherperformanceandenergyefficiency.LNK500
is a lower cost version of the LNK501 with a wider tolerance
output CC characteristic. LinkSwitch introduces a revolutionary
patented topology for the design of low power switching power
supplies that rivals the simplicity and low cost of linear adapters,
PRODUCT4
OUTPUT POWER TABLE1
Table 1. Notes: 1. Output power for designs in an enclosed adapter
measured at 50
°C ambient. 2. See Figure 1 (b) for Min (CV only designs)
and Typ (CV/CC charger designs) power points identified on output
characteristic. 3. Uses higher reflected voltage transformer designs for
increased power capability – see KeyApplication Considerations section.
4. See Part Ordering Information.
230 VAC
±15% 85-265 VAC
LNK500
P or G
and enables a much smaller, lighter, and attractive package when
compared with the traditional "brick". With efficiency of up to
75% and < 300 mW no-load consumption, a LinkSwitch solution
can save the end user enough energy over a linear design to
completely pay for the full power supply cost in less than one
year. LinkSwitch integrates a 700 V power MOSFET, PWM
control, high voltage start-up, current limit, and thermal shutdown
circuitry, onto a monolithic IC.
LNK500
LinkSwitch
® Family
Energy Efficient, CV or CV/CC Switcher for
Very Low Cost Adapters and Chargers
®
®
March 2003
No-Load
Input
Power
Min2
Typ2
Min2
Typ2
3.2 W
4 W
2.4 W
3 W
<300 mW
4.3 W 5.5 W 2.9 W
3.5 W <500 mW3
PI-3415-021103
Wide Range
HV DC Input
DC
Output
(V
O)
Min
(CV only)
Example Characteristic
Typ
(CV/CC)
(a)
(b)
For Circuit
Shown Above
With Optional
Secondary Feedback**
*Estimated tolerance achievable in high volume production
including transformer and other component tolerances.
**See Optional Secondary Feedback section.
LinkSwitch
±10%
±25%*
±5%
±25%*
DS
C
I
O
I
O
V
O
V
O


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