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LNK420EG IC - Power Integrations - LED Driver Off Line Switcher IC

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Brand: Generic   |   SKU: 5190219

174.00

₹ 306.00

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Description

LinkSwitch-XT
incorporates a 700 V power MOSFET, oscillator,
simple ON/OFF control scheme, a high voltage switched current
source,  frequency  jittering,  cycle-by-cycle  current  limit  and
®
Table  1.
Notes:
1.
Minimum  continuous  power  in  a  typical  non-
ventilated enclosed adapter measured at 50 °C ambient.
2.
Minimum
practical  continuous  power  in  an  open  frame  design  with  adequate
heat  sinking,  measured  at  50  °C  ambient.
3.
Packages:  P:  DIP-8B,
G:  SMD-8B.  Please  see  Part  Ordering  Information.
4.
See  Key
Application  Considerations  section  for  complete  description  of
assumptions.
thermal shutdown circuitry onto a monolithic IC. The start-up
and  operating  power  are  derived  directly  from  the  DRAIN
pin,  eliminating  the  need  for  a  bias  winding  and  associated
circuitry.
LinkSwitch-XT
incorporates a 700 V power MOSFET, oscillator,
simple ON/OFF control scheme, a high voltage switched current
source,  frequency  jittering,  cycle-by-cycle  current  limit  and

The LNK420EG dramatically simplifies implementation of LED drivers requiring long lifetime, high efficiency, PF >0.9, and TRIAC dimming capability(LNK403-410). The single-stage combined power factor and constant-current controller eliminates a switching stage and the electrolytic bulk capacitor.  The advanced primary-side control used by the LNK420EG device provides accurate constant current control while eliminating the need for an optocoupler and current sensing circuits.LinkSwitch-PH incorporates a 725 V power FET, a continuous-mode PWM controller, a high-voltage switched current source for self biasing, frequency jittering, protection circuitry including cycle-by-cycle current limit and hysteretic thermal shutdown.

Features:-

• Single-stage combination of power factor correction and accurate constant-current (CC) output

• Enables very long lifetime designs (no electrolytic capacitors)

• Eliminates optocoupler and all secondary current control circuitry

• Eliminates control loop compensation circuitry

• Simple primary-side PWM dimming interface

• Universal input voltage range

Specification:-

Symbol Parameter Min Type Max Units
ICD2 Drain Supply Current 0.5 0.85 1.2 m A
VV Voltage Monitor Pin Voltage 2.75 3 3.25 V
VV(REM) Remote ON/OFF Threshold 0.5

V
DCMAX Maximum Duty Cycle 90
99.9 %


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