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LinkSwitch™-TN2 Switcher IC
Power Integrations' LinkSwitch-TN2 energy efficient off-line switcher IC with integrated system level protection
Power Integrations' LinkSwitch-TN2 family of ICs for non-isolated off-line power supplies provide dramatically improved performance compared to traditional linear or cap-dropper solutions. Designs using the highly integrated LinkSwitch-TN2 ICs are more flexible and feature increased efficiency, comprehensive system level protection, and higher reliability. The device family supports buck, buck-boost, and flyback converter topologies. Each device incorporates a 725 V power MOSFET, oscillator, On/Off control for highest efficiency at light load, a high-voltage switched current source for self-biasing, frequency jittering, fast (cycle-by-cycle) current limit, hysteretic thermal shutdown, and output and input overvoltage protection circuitry onto a monolithic IC.
Design Examples:
- RDR-506 - 1.44 W Non-Isolated Buck Converter
- DER-508 - 4.75 W Dual Output Power Supply
- DER-507 - 175 mW Constant Voltage, Universal Input, Non-Isolated Buck Converter
- DER-574 - 1.65 W Non-Isolated Tapped Buck Power Supply
- Supports buck, buck-boost, and flyback topologies
- Low component-count buck converter
- Excellent load and line regulation
- Selectable device current limit
- 66 kHz operation with accurate current limit
- Allows the use of low-cost off-the-shelf inductors
- Reduces size and cost of magnetics and output capacitor
- Frequency jittering reduces EMI filter complexity
- Pin-out simplifies PCB heat sinking
- Major appliances
- Small appliances
- Internet of Things (IoT)
- Smart meters
Reference Design Kits
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | RDK-721 | EVAL BOARD FOR BRD1265C | 4 - Immediate | $3,233.00 | View Details |
|  | RDK-912 | EVAL BOARD FOR LNK3207D | 1 - Immediate | $3,233.00 | View Details |
|  | RDK-723 | EVAL BOARD FOR LNK3209D | 4 - Immediate | $3,233.00 | View Details |
LinkSwitch-TN2
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | LNK3206D-TL | IC OFFLINE SWITCH MULT TOP 8SO | 5616 - Immediate | $29.42 | View Details |
|  | LNK3204P | IC OFFLINE SWITCH MULT TOP 8DIP | 8703 - Immediate | $23.28 | View Details |
|  | LNK3206GQ-TL | IC OFFLINE SWITCH MULT TOP 8SMD | 830 - Immediate | $45.59 | View Details |
| | LNK3202P | IC OFFLINE SWITCH MULT TOP 8DIP | 0 - Immediate | $20.69 | View Details |
| | LNK3207G-TL | IC OFFLINE SWITCH MULT TOP 8SMD | 1389 - Immediate | $35.24 | View Details |
| | LNK3202G-TL | IC OFFLINE SWITCH MULT TOP 8SMD | 1580 - Immediate | $21.98 | View Details |
| | LNK3204G-TL | IC OFFLINE SWITCH MULT TOP 8SMD | 1504 - Immediate | $24.25 | View Details |
| | LNK3202D-TL | IC OFFLINE SWITCH MULT TOP 8SO | 11075 - Immediate | $19.40 | View Details |
| | LNK3204D-TL | IC OFFLINE SWITCH MULT TOP 8SO | 39616 - Immediate | $21.98 | View Details |
| | LNK3205D-TL | IC OFFLINE SWITCH MULT TOP 8SO | 3988 - Immediate | $25.86 | View Details |
| | LNK3206G-TL | IC OFFLINE SWITCH MULT TOP 8SMD | 2001 - Immediate | $32.65 | View Details |
| | LNK3205G-TL | IC OFFLINE SWITCH MULT TOP 8SMD | 719 - Immediate | $29.10 | View Details |
| | LNK3205P | IC OFFLINE SWITCH MULT TOP 8DIP | 872 - Immediate | $27.80 | View Details |
| | LNK3207D-TL | IC OFFLINE SWITCH MULT TOP 8SO | 5535 - Immediate | $32.33 | View Details |
| | LNK3207P | IC OFFLINE SWITCH MULT TOP 8DIP | 1280 - Immediate | $34.27 | View Details |
| | LNK3206P | IC OFFLINE SWITCH MULT TOP 8DIP | 67 - Immediate | $31.68 | View Details |
| | LNK3209D-TL | 600 MA (MDCM) 1000 MA (CCM) | 16373 - Immediate | $43.97 | View Details |
| | LNK3209G-TL | 600 MA (MDCM) 1000 MA (CCM) | 5177 - Immediate | $50.76 | View Details |
| | LNK3209P | 600 MA (MDCM) 1000 MA (CCM) | 812 - Immediate | $48.50 | View Details |
| | LNK3209GQ-TL | LINKSWITCH-TN2Q 750V 850MA | 4915 - Immediate | $72.10 | View Details |
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