The 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 fly back 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.
LinkSwitch-TN2 ICs consume very little current in standby resulting in power supply designs that meet all no-load and standby specifications worldwide. MOSFET current limit modes can be selected through the BYPASS pin capacitor value. The high current limit level provides maximum continuous output current while the low-level permits using very low cost and small surface mount inductors. A full suite of protection features enables safe and reliable power supplies protecting the device and the system against input and output overvoltage faults, device over-temperature faults, lost regulation, and power supply output overload or short-circuit faults.
Manufacturer | Power Integrations |
---|---|
Category | AC/DC and DC/DC Conversion |
Sub-Category | AC/DC SMPS - Multi Output |
Eval Board Part Number | 596-1815-ND |
Eval Board Supplier | Power Integrations |
Eval Board |
Normally In Stock
|
AC Voltage |
Universal (115 / 230V)
|
Outputs and Type |
2 Non-Isolated
|
Voltage Out: Highest Current First |
3.8V, 12V
|
Current Out |
20mA per Channel
|
Output Power |
347 mW
|
Efficiency @ Conditions |
>60%, 140 ~ 265 VAC in, 3.8 V 12V @ 20 mA
|
No-load Input Power @ Voltage |
<7 mW @ 115 VAC
<12 mW @ 230 VAC |
Features |
Over Voltage Protection
Thermal Protection |
Switching Frequency |
66 kHz
|
Internal Switch |
Yes
|
Component Count + Extras |
19 + 6
|
Voltage In |
85 ~ 277 VAC
|
Application / Target Market |
Lighting: LED Commercial Lighting
Lighting: LED Home Lighting Lighting: LED Signage Power: Auxiliary Power Supply RF: Home Automation RF: Metering White Goods |
Design Author |
Power Integrations
|
Main I.C. Base Part |
LNK3202D
|
Date Created By Author | 2018-05 |
Date Added To Library | 2018-12 |