LNK604DG-TL – Power Integrations LinkSwitch-II Energy-Efficient CV/CC Offline Switcher

Quick Answer The LNK604DG-TL is a highly integrated offline switching IC from Power Integrations' LinkSwitch-II family. It combines a 700V power MOSFET with on/off control for accurate constant voltage (CV) and constant current (CC) output regulation without requiring an optocoupler or secondary feedback circuitry. Capable of delivering up to 3.5W in enclosed adapters, it is ideal for low-power chargers, adapters, and LED drivers in a compact SO-8C package.

Current Stock at ICMASS: Strong inventory available for immediate worldwide delivery.

Key Specifications

[Download Official LNK604 Datasheet PDF]

Why Choose LNK604DG-TL?

• Highly accurate CV/CC regulation without optocoupler
• Integrated 700V MOSFET for high reliability
• Very few external components required
• Excellent line and load regulation with transformer inductance compensation
• Low no-load consumption for high efficiency
• Auto-restart protection for output faults
• Pb-free, RoHS compliant, and halogen-free
• Cost-effective solution for low-power chargers and adapters

Typical Applications

• Cell phone / cordless phone chargers
• PDAs and portable audio device chargers
• USB chargers and adapters
• LED drivers and LED lighting
• Standby and auxiliary power supplies
• Industrial control power supplies
• Battery chargers
• AC-DC adapters up to 3.5W

LNK604DG-TL Alternatives & Cross Reference Popular Alternatives:

• LNK603DG / LNK605DG (lower/higher power in same family)
• LNK613DG / LNK614DG (improved versions)
• TNY series (TinySwitch)
• VIPer series (STMicroelectronics)
• IW1700 / IW1709 (iWatt / Dialog)

Comparison Table:

Purchasing Information at ICMASS

• Stock Status: Strong inventory available
• MOQ: 100 pieces (samples welcome)
• Lead Time: 1-3 days for stock orders
• Shipping: Fast global delivery (DHL, UPS, FedEx)
• Quality Guarantee: 100% genuine Power Integrations components

Get Competitive Quote – Contact us for bulk pricing and technical support.

Frequently Asked Questions (FAQ)

Q1: What is the LNK604DG-TL mainly used for? A: It is an offline CV/CC switcher IC ideal for low-power battery chargers and adapters up to 3.5W.

Q2: What is the maximum output power? A: Up to 3.5W in typical enclosed adapter designs.

Q3: Does it require an optocoupler? A: No, it achieves accurate CV/CC regulation without an optocoupler or secondary feedback circuit.

Q4: What package does the LNK604DG-TL use? A: SO-8C (DG) surface mount package, supplied in Tape & Reel.

Q5: What is the integrated MOSFET voltage rating? A: 700V.

Q6: Is it suitable for universal input? A: Yes, it supports 85-265 VAC universal input.

Q7: What protection features does it include? A: Output short circuit, open loop, over temperature with auto-restart.

Q8: Do you have real stock of LNK604DG-TL? A: Yes, we maintain good inventory levels for fast delivery.

Q9: What is the typical no-load power consumption? A: Very low, meeting stringent standby power regulations.

Q10: Can you provide reference designs or layout recommendations? A: Yes, we supply official Power Integrations datasheet, reference design kits (RDK), and PI Expert design software support.

Q11: Do you offer volume pricing? A: Yes. Competitive tiered pricing is available for quantities from 1K to 100K+.

Q12: How does LNK604 compare to LNK614? A: LNK614 is an enhanced version with improved performance while maintaining pin compatibility.

Related Products

• LNK60x / LNK61x LinkSwitch-II Family
• LNK304 / LNK306 LinkSwitch-TN
• Other Power Integrations Offline Switchers
• Higher power LinkSwitch and TinySwitch ICs