June 23, 2004, Taipei, Taiwan –– System General, a leading provider of power management ICs, today announced a tightly integrated PWM controller IC—the SG6842. This controller IC offers several advantages for AC/DC SMPS manufacturers including low standby power consumption and reduced design costs.

To minimize standby power consumption, a proprietary patented green-mode function (patent number: US6,545,882) provides off-time modulation to linearly decrease the switching frequency under light-load conditions. Under zero-load conditions, the power supply enters burst-mode. Through the BiCMOS process, the SG6842 can perform low start-up current (8uA), and low operating current (3.7mA). It simultaneously utilizes multiple protections. It can integrate discrete components into one product thereby reducing design complexity, and product design time.

The SG6842 is specially designed for LCD Monitors, LCD-TNs, DVDs, and N/B Adaptors. It is a high performance power IC with remarkably low standby and operating current requirements.

More Features
- Burst mode
- Low start-up current <10uA
- Internal latch circuit (OTP, OVP)
- VDD over voltage protection (OVP)
- Under-voltage lockout (UVLO)
- Built-in synchronized slope compensation
- Limited power control to meet safety requirements
- Programmable over-temperature protection (OTP)

Applications
General-Purpose Switches, High Mode Power Supplies, and flyback power converters, including:
- Power Adapters (N/B)
- Open Frame SMPS
- Battery Charger Adapters

Package and Pricing
The SG6510 comes in two 8-pin DIP-8, and SOP-8 packages.

Availability: Now.