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AS2214
Primary Side PWM Controller
Features
• Low Startup Current • Bulk and AC sensing • Soft Start • Single-start or auto-restart
modes
• Oscillator trimmed for precision
duty cycle clamp
• Standard temperature range
extended to 105°C
• Remote on / off control • Buffered Ramp for slope
compensation
• Standard current mode control
Description
The AS2214 is a full featured, pulse width modulation controller. Based on an improved AS3842, the AS2214 provides additional features that reduce component count and improve specifications in a wide range of power supply designs. The added functionality includes AC power and bulk voltage sensing, over-voltage input, as well as the ability to latch off or bounce through different fault conditions.