MC33363A: High Voltage Switching Regulator
The MC33363A is a monolithic high voltage switching regulator that is specifically designed to operate from a rectified 240 Vac line source. This integrated circuit features an on-chip 700 V/1.5 A MOSFET power switch, 500 V active off-line startup FET, duty cycle controlled oscillator, current limiting comparator with a programmable threshold and leading edge blanking, latching pulse width modulator for double pulse suppression, high gain error amplifier, and a trimmed internal bandgap reference. Protective features include cycle-by-cycle current limiting, input undervoltage lockout with hysteresis, output overvoltage protection, and thermal shutdown.
Features- Enhanced Power Capability Over MC33363
- On-Chip 700 V, 1.5 A MOSFET Power Switch
- Rectified 240 Vac Line Source Operation
- On-Chip 500 V Active Off-Line Startup FET
- Latching PWM for Double Pulse Suppression
- Cycle-By-Cycle Current Limiting
- Input Undervoltage Lockout with Hysteresis
- Output Overvoltage Protection Comparator
- Trimmed Internal Bandgap Reference
- Internal Thermal Shutdown
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Data Sheets (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| MC33363ADWG | Active | Pb-free
Halide free | SOIC-16W | 751N-01 | 3 | Tube | 47 | $1.68 |
| MC33363ADWR2G | Active | Pb-free
Halide free | SOIC-16W | 751N-01 | 3 | Tape and Reel | 1000 | $1.68 |
Specifications
| Product | Control Mode | fsw Typ (kHz) | fJitter Typ (%) | Stand-by Mode | RDS(ON) Typ (Ω) | V(BR)DSS Max (V) | IPeak (mA) | HV Start-up Min (V) | DSS (mA) | UVLO | Short Circuit Protection | Over Power Compensation | Brown-out | Latch |
|---|
| MC33363ADWG | Current Mode | 285 | No | No | 14 | 700 | 400 | Yes | No | Yes | No | No | No | No |
| MC33363ADWR2G | Current Mode | 285 | No | No | 14 | 700 | 400 | Yes | No | Yes | No | No | No | No |
