UCC28C43QDRQ1

• AEC-Q100 qualified with the following results:
  • Device temperature grade 1:-40?C to125?C
  • Device HBM classification level 2: ±2kV
  • Device CDM classification level C4B: 750 V
• 1-MHz operation
• 50-μA standby current, 100-μA maximum
• Low operating current of 2.3 mA at 52 kHz
• Fast 35-ns cycle-by-cycle over-current limiting
• ±1-A peak output current
• Rail-to-rail output swings with 25-ns rise and 20-ns fall times
• ±1% initial trimmed 2.5-V error amplifier reference
• Trimmed oscillator discharge current
• New undervoltage lockout versions
• Create a custom design using the UCC28C4x-Q1 with theWEBENCH? Power Designer

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The UCC28C4x-Q1 family devices are high performancecurrent-mode PWM controllers.

The UCC28C4x-Q1 family supports a fixed-frequency, peak current-mode flybackimplementation with UVLO and maximum duty-cycle limit options. UCC28C4X-Q1 can be configured witheither primary-side regulation using an auxiliary winding or secondary-side regulation with the useof an opto-coupler. This family of devices features high frequency operation up to 1 MHz with lowstart up and operating currents, thus minimizing start up loss and operating power consumption forimproved efficiency. The devices also feature a fast current sense to output delay time of 35 ns,and a ±1-A peak output current capability for driving large external MOSFETs directly.

The UCC28C4x-Q1 family is offered in the 8-pin SOIC (D) package.