The document introduces the features of PHILIPS Semiconductor's Green Chip II Flyback Controller Family, including ZVS zero voltage switching in half-bridge mode, spread spectrum function, duty factor for light/heavy loads, automatic compensation of OPP over power protection point, etc.
The Green Chip II Flyback Controller family from Philips Semiconductor provides high‑efficiency power conversion for 30 W to 250 W applications. Features include zero‑voltage switching (ZVS), frequency spread for EMI reduction, cycle‑skipping idle power around 0.3 W, LEB front‑edge blanking, and a full set of protections such as OVP, OCP, OPP, SWP, SCP and OTP.
The controllers are offered in DIP8, SO14 and SO8 packages and are suited for LCD monitor SMPS/adaptors, notebook adapters, DVD‑RW power supplies and other high‑efficiency converters. Recommended power ranges are 30‑65 W for TEA1533, 65‑250 W for TEA1552, and 30‑250 W for TEA1532. This manual is written in Chinese.
| Zero Voltage Switching (ZVS) | Reduces switching loss and improves efficiency |
|---|---|
| Cycle Skipping (Idle Power) | Typical 0.3 W |
| LEB Front‑Edge Blanking | Prevents current feedback distortion |
| Over‑Power Protection (OPP) | Automatic compensation with input voltage |
| Over‑Voltage Protection (OVP) | Adjustable precision threshold |
| Over‑Current Protection (OCP) | Built‑in |
| Over‑Temperature Protection (OTP) | Default 140 °C |
| 5 V Reference Voltage | Optional (Yes/No per model) |
| Packaging Options | DIP8, SO14, SO8 |
| Recommended Power Range | TEA1533: 30‑65 W; TEA1552: 65‑250 W; TEA1532: 30‑250 W |
It includes over‑voltage (OVP), over‑current (OCP), over‑power (OPP), coil short‑circuit (SWP), output short‑circuit (SCP) and over‑temperature (OTP) protections.
They are used in LCD monitor SMPS/adaptors, notebook adapters, DVD‑RW power supplies and other high‑efficiency converters up to 250 W.
TEA1533: 30‑65 W, TEA1552: 65‑250 W, TEA1532: 30‑250 W.