LNK6667E

Duty Cycle:	64%
Mounting Type:	Through Hole
Supplier Device Package:	eSIP-7C
Package / Case:	7-SIP, 6 Leads, Exposed Pad, Formed Leads
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
Power (Watts):	117W
Frequency - Switching:	120kHz ~ 136kHz
Series:	LinkSwitch™-HP
Voltage - Supply (Vcc/Vdd):	--
Topology:	Flyback
Voltage - Breakdown:	650V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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LNK6667E Application Field and Working PrincipleThe LNK6667E Power Management Integrated Circuit (PMIC) is a highly integrated bipolar linear AC-DC converter and offline switcher designed for cost-effective solutions for off-line, low-power applications. With its low-power, low-voltage operation, the LNK6667E is a great choice for space-limited applications including lighting, telecommunications, industrial and automotive systems.The LNK6667E, which is highly integrated, enables more efficient, stable and reliable power conversion, eliminating the need for costly discrete components. It combines secondary-side rectification, linear current-mode control and adjustable operating frequency to deliver high-efficiency, accurate operation, and a robust external component count. The LNK6667E is unique in that it integrates two power stages, the switched converters and the linear AC-DC converter, in one highly integrated package. Thus, it has two channels, one for linear AC-DC conversion and one for the switching converter. Each power stage operates independently, allowing each channel to be driven separately. In AC-DC application, the LNK6667E operates as a single stage switch-mode power supply that employs current-mode control to ensure high power conversion efficiency. The PWM modulation rate of the power stage is adjustable over a wide range, which allows the power supply to be adapted to meet various application requirements. It also includes a built-in synchronous rectifier to reduce heat loss in the rectifier and offers excellent protection against over-voltage and current-leakage. In the offline switcher application, the LNK6667E provides a single-stage, high-efficiency integrated regulator. It features a variable switching frequency and high current acceptance, with a low noise and ripple design that reduces EMI. The switching frequency is programmable, which allows the application to optimize the circuit performance and to reduce external component counts. In addition, the LNK6667E integrates the protection and control circuitry necessary for high reliability and safety. The current-mode control ensures excellent line and load regulation, while the adaptive gate drive system protects against over-current and shorts. The low start-up current reduces system power consumption and increases device reliability. The LNK6667E is an ideal choice for cost-sensitive applications requiring low-power, low-voltage operation. With its highly integrated design, this PMIC offers a compact and easily integrated solution that reduces cost, improves performance, and reduces external component count.

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