Data Sheets
TinySwitch-LT Data Sheet
Energy-Efficient Off-Line Switcher with Enhanced Flexibility and Extended Power Range
Product Details
TinySwitch™-LT incorporates a 650 V power MOSFET, oscillator, high-voltage switched current source, current limit (user selectable) and thermal shutdown circuitry. The IC family uses an ON/OFF control scheme and offers a design flexible solution with a low system cost and extended power capability.
Product Highlights:
- 650 V rated integrated MOSFET
- Simple ON/OFF control, no loop compensation needed
- Selectable current limit through BP/M capacitor value
- Higher current limit extends peak power or, in open frame applications, maximum continuous power
- Tight I2f parameter tolerance reduces system cost; minimizes maximum overload power, reducing cost of transformer, primary clamp & secondary components
- On-time extension—extends low line regulation range/hold-up time to reduce input bulk capacitance
- Frequency jittering reduces EMI filter costs
Applications
Power Table
Output Power (Watts) | ||||
---|---|---|---|---|
PRODUCT³ | 230 VAC ±15% | 85-265 VAC | ||
Adapter¹ | Open Frame² (or Peak) | Adapter¹ | Open Frame² (or Peak) | |
TNY174P/D⁴ | 6 | 11 | 5 | 8.5 |
TNY175P/D⁴ | 8.5 | 15 | 6 | 11.5 |
TNY176P/D⁴ | 10 | 19 | 7 | 15 |
TNY177P⁴ | 13 | 23.5 | 8 | 18 |
TNY177D | 11.5 | 23.5 | 7 | 18 |
TNY178P | 16 | 28 | 10 | 21.5 |
TNY178D | 14.5 | 26 | 9 | 19.5 |
TNY179P | 18 | 32 | 12 | 25 |
TNY180P | 20 | 36.5 | 14 | 28.5 |
Notes:
- Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient. Use of an external heat sink will increase power capability.
- Minimum peak power capability in any design or minimum continuous power in an open frame design (see Key Applications Considerations section of the TinySwitch-LT Data Sheet for details).
- Packages: P: DIP-8C, D: SO-8C. See Part Ordering Information section of the TinySwitch-LT Data Sheet for details.
- See Key Application Considerations section of the TinySwitch-LT Data Sheet for details.