High Voltage Switching Regulator

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Overview

The MC33363B 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/1.0 A MOSFET power switch, 500 V active off-line startup FET, duty cycle controlled oscillator, currentlimiting 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, overvoltage protection, and thermal shutdown.

  • On-Chip 700 V, 1.0 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
  • Over-Voltage Protection
  • Trimmed Internal Bandgap Reference
  • Internal Thermal Shutdown

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fsw Typ (kHz)

fJitter Typ (%)

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MC33363BDWG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

3

260

TUBE

47

N

Current Mode

285

No

No

14

700

400

Yes

No

Yes

No

No

No

No

Price N/A

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MC33363BDWR2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-16W

3

260

REEL

1000

N

Current Mode

285

No

No

14

700

400

Yes

No

Yes

No

No

No

No

Price N/A

More Details

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