TNY288KG-TL

Introduction to TNY288KG-TL
- What it is: A Power Integrations TinySwitch-II offline switcher IC with an integrated ~700 V high-voltage MOSFET, for simple, low-power isolated flyback converters.
- Function: Primary-side switched-mode power supply controller with built-in current limit, over‑temperature protection, undervoltage lockout, and fixed switching frequency (tens of kHz).
- Applications: Ideal for universal-input, low-power wall adapters, phone chargers, and LED drivers with minimal external parts.
- Feedback: Regulation can be via primary-side sensing or an opto-coupler, depending on the design.
- Packaging: TL denotes Tape-and-Reel packaging; KG indicates the lead-free RoHS variant.
- External needs: A transformer, input filter, a catch diode, a few resistors, and optional feedback components.
- Benefits vs. limitations: High efficiency and low part count; suitable for small power levels. Less flexible for high-power designs compared with discrete switchers.

Key features of TNY288KG-TL (TinySwitch-II, -TL = Tape & Reel):
- Integrated 700V high-voltage MOSFET for off-line flyback operation
- Primary-side regulation (PSR) – no optocoupler required for regulation
- Fixed operating frequency with jitter to help EMI, plus efficient burst/standby behavior
- Protective features: pulse-by-pulse current limit, overcurrent/short-circuit protection, thermal shutdown, and hiccup fault mode
- Soft-start to reduce inrush and improve reliability
- Very low no-load/standby power with compact, low-cost implementation
- Typical applications: compact AC-DC adapters and chargers
- Packaging: Tape & Reel (TL) variant for automated assembly
Note: Designed for simple, economical power supplies with universal input range and minimal external components.

- Pin count: 8 pins (SMT/DIP-8 package)
- Function: TinySwitch high-voltage switching IC with an integrated MOSFET for flyback offline power supplies; provides primary-side regulation, startup, current limit, and protection. Used as the switching controller in SMPS with feedback from the secondary side or primary-side sensing.

- Manufacturer: Power Integrations (PI).
- What kind of company: A global semiconductor company that designs and manufactures energy-efficient power-management ICs, especially high-voltage off-line switch-mode power supply controllers and integrated switches for power adapters, chargers, and SMPS applications.

TNY288KG-TL is a TinySwitch-II offline switcher used for isolated flyback power supplies. Common applications:
- Low- to mid-power AC-DC adapters and USB chargers (wall warts)
- Battery chargers and telecom/consumer electronics power bricks
- Set-top boxes, modems/routers, printers, and other small electronics
- Standby/idle-power supplies for home appliances and devices
- Some simple LED lighting drivers (low-to-moderate wattage)
Key advantages: integrated high-voltage MOSFET, simple external components, universal input (typical 85–265 VAC), cost-effective offline power conversion.

8-pin surface-mount (SOP-8) package; the "-TL" suffix indicates Tape & Reel packaging.