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LNK6666E Offline Switcher IC
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Rs.
75.52 (inc GST)
Rs.64.00 + GSTQty :
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Quantity Pricing (inc GST)
5 + 69.50 15 + 63.96 30 + 58.76
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LNK6666E IC AC-DC Offline Switcher IC
LNK6666E Energy Efficient, High-Power Off-Line Switcher with Accurate Primary-Side Regulation (PSR)
A LinkSwitch™-HP LNK6666E IC monolithically integrates a controller and high-voltage power MOSFET into one package. It has a newly developed analogue control scheme, which enables continuous conduction mode (CCM), primary side regulated (PSR) power supplies up to 90 W without the efficiency limitation of DCM or audible noise. It uses an enhanced peak current mode PWM control scheme with multi-mode operation.The multi-mode control engine uses the error amplifier output signal voltage at the COMPENSATION pin to set the operating peak current and switching frequency to maintain the output voltage in regulation. For COMPENSATION pin voltages lower than VC(MCM) (typ. 1.25 V) the device enters multi-cycle modulation (MCM) with a fixed peak current of 25% of the programmed current limit. Several innovative improvements have been added in LNK666e offline switcher IC to the peak current mode control to allow primary side regulated CCM operation with no instability. The device meets less than 30 mW input power with no-load at high-line.
The multi-mode control engine uses the error amplifier output signal voltage at the COMPENSATION pin to set the operating peak current and switching frequency to maintain the output voltage in regulation. For COMPENSATION pin voltages lower than VC(MCM) (typ. 1.25 V) the device enters multi-cycle modulation (MCM) with a fixed peak current of 25% of the programmed current limit. Several innovative improvements have been added in LNK666e offline switcher IC to the peak current mode control to allow primary side regulated CCM operation with no instability. The device meets less than 30 mW input power with no-load at high-line.
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Features of LNK6666E offline switcher IC
- External current limit selection.
- Optional programmable shutdown delay time extension.
- Optional remote On/Off.
- Optional fast AC reset.
- Primary-side sensed output overvoltage protection (OVP) .
- Lost regulation protection during output overload or short-circuit (auto-restart).
- Internal current limit over line compensation for constant overload power over line.
- High-voltage bus overvoltage sense (line OV) for extended line surge withstand.
- High-voltage bus undervoltage sense (line UV) for brown-in/out protection.
- Accurate over-temperature protection (OTP).
- Output OVP/OCP/OTP shutdown type selection (hysteretic/latching).
- Optional external latching shutdown input (current threshold)
- Cycle-by-cycle current limit control.
Applications of LNK6666E AC-DC Offline Switcher IC
- LCD Monitor and TV
- Adapter
- Appliances
- Embedded power supplies (DVD, set-top box)
- Industrial Power Supply
Package Includes
1 x LNK6666E IC AC-DC Offline Switcher IC
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