Date: 22/11/2008

Overvoltage protection IC with integrated functions & safety features

ON Semiconductor introduced the NUS6189, a device that integrates the performance and functions of an overvoltage protection circuit, a 30 volt P-channel power MOSFET, a low VCE(sat) transistor and a low Rds(on) power MOSFET into a tiny package.
The NUS6189 is designed to protect sensitive electronic circuitry from overvoltage transients and power supply faults. It is optimized for applications that utilize an external AC-DC adapter or car accessory charger such as mobile phones, PMPs and mobile Internet devices.

The common features are:

1. By integrating the four separate device functions commonly needed for protection within portable devices into a single IC, the NUS6189 reduces the PCB space required by up to 40 %.
2. The device's integrated design delivers very low power dissipation, significantly reducing heat and improving battery life.
3. With an overvoltage turn-off time of less than 1.0 micro seconds (µs) the device quickly disconnects the input supply from the load during faults, thus assuring superior protection over existing slower solutions

Packaging: QFN-22, lead-free package
Size: 3.0 mm x 4.0 mm x 0.9 mm
Pricing: $0.55 USD per unit in 1K unit quantities

For more information, visit http: www.onsemi.com