TEA1708T Description
The TEA1708 is an automatic discharge IC for X capacitors with a low power consumption (typically 1 mW at 230 V (AC). A 500 V clamping circuit is integrated, protecting the IC during mains surges. In a typical application with only two 200 kΩ resistors, the maximum differential mode mains surge voltage allowed exceeds 6 kV.
TEA1708T Key Features
- 1 mW power consumption at 230 V (AC)
- Integrated 500 V clamp; no metal oxide varistor required to protect the IC
- Self-Supplied, no external bias required
- Discharge current internally limited
- Adjustable discharge delay
- Very high differential surge: 6 kV with two 200 kΩ resistors
- Easier application design, resolving EMI issues while retaining the efficiency level
TEA1708T Applications
- All AC-connected power supplies with X-capacitors > 100 nF requiring a low load standby power