QHX220

The QHX220 is a high performance drop-in replacement for the popular 28C4x and 18C4x PWM controllers suitable for a wide range of power conversion applications including boost, flyback, and isolated output configurations. The features of QHX220 are as follows: (1)Supply Voltage (VDD to GND): 2.1V; (2)I/O Voltage at All Input Pins: GND - 0.3V to VDD + 0.3V; (3)ESD Rating (HBM): 2kV.

The following is about the absolute maximum ratings of QHX220: (1)Supply Voltage, VDD: GND -0.3V to +30V; (2)OUT: GND -0.3V to VDD + 0.3V; (3)Signal Pins: GND -0.3V to 6.0V; (4)Peak GATE Current: 1A; (5)ESD Classification: Human Body Model (Per JESD22-A114C.01) 2000V, Machine Model (Per EIA/JESD22-A115-A) 200V, Charged Device Model (Per JESD22-C191-A) 1000V.

The electrical characteristics of the QHX220 are: (1)Frequency Coverage: 0.3 GHz min and 3 GHz max; (2)Max. Gain (high gain mode): 18/11.8 dB max; (3)Max. Gain (low gain mode): UHF-Band 450MHz/770MHz: -7.2/-15.4dB min, 2.8/-4.1dB typ and  7.3/1.4 dB max, L-Band 1575MHz: -5.4 dB min, 0.9 dB typ and 4.9 dB, ISM Band 2400MHz: -9.1 dB; (4)Max. Gain (Boost gain mode): UHF-Band 450MHz/770MHz: 17.1/9.2 dB min, 20.1/12.2 dB typ and 23.1/15.2 dB max, L-Band 1575MHz: 14.7 dB min, 17.7dB typ and 20.7 dB max, ISM Band 2400MHz: 7.64 dB; (5)Max Dynamic Range: 27.4 dB min and 50 dB typ; (6)Phase Control Range: 0 to 360 °.