ICE2QR1765GXUMA1

ICE2QR1765GXUMA1 is a CoolSET™-Q1 series, the first generation of quasi-resonant integrated power IC. Operating the MOSFET switch in quasi-resonant mode, lower EMI, higher efficiency, and lower voltage stress on secondary diodes are expected for the SMPS. Based on the BiCMOS technology, the CoolSET™-Q1 series has a wide operation range (upto 25V) of IC power supply and lower power consumption. It also offers many advantages such as a quasi-resonant operation till a very low load increasing the average system efficiency compared to the other conventional solutions, the active burst mode operation enables an ultra-low power consumption at standby mode with small and controllable output voltage ripple. It is used in applications such as adapters/chargers, blue ray/DVD players, set-top boxes, digital photo frames, auxiliary power supplies of servers, PC, printers, TV, home, theatre/audio system, white goods, etc.

• Quasi resonant operation, digital frequency reduction for better overall system efficiency
• 650V avalanche rugged CoolMOS™ with startup cell
• Digital frequency reduction with decreasing load for reduced switching loss
• Foldback point correction, cycle-by-cycle peak current limitation and maximum on time limitation
• Built-in digital soft-start, drain source on-resistance is 1.70 ohm typical
• Start-up current is 330μA typical at (VVCC =VVCCon -0.2V)
• VCC charge current is 1.22mA typical at (VVCC = 0V)
• Soft-start time is 12ms typical, supply current in normal operation is 1.5mA typical
• VCC turn-on/off hysteresis is 7.5V typical
• Junction temperature range from -40°C to 150°C, PG-DSO-12 package