(China (Mainland))
Product Summary
The MC33023DWR2 is a high speed, fixed frequency, single-ended pulse width modulator controller optimized for high frequency operation. It is specifically designed for Off-Line and DC.to.DC converter applications offering the designer a cost-effective solution with minimal external components. The MC33023DWR2 features an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.
Parametrics
MC33023DWR2 absolute maximum ratings: (1)Power Supply Voltage VCC: 30V; (2)Output Driver Supply Voltage VC: 20V; (3)Output Current, Source or Sink DC: 0.5A, Pulsed (0.5μs): 2.0A; (4)Current Sense, Soft.Start, Ramp, and Error Amp Inputs Vin: -0.3V to +7.0V; (5)Error Amp Output and Soft.Start Sink Current IO: 10mA; (6)Clock and RT Output Current ICO: 5.0mA; (7)Maximum Power Dissipation @ TA = +25℃: 862mW; (8)Thermal Resistance, Junction-to-Air: 145℃/W; (9)Operating Junction Temperature TJ: +150℃; (10)Operating Ambient Temperature: -40℃ to +105℃; (11)Storage Temperature Range Tstg: -55℃ to +150℃.
Features
MC33023DWR2 features: (1)50 ns Propagation Delay to Output; (2)High Current Totem Pole Output; (3)Wide Bandwidth Error Amplifier; (4)Fully-Latched Logic with Double Pulse Suppression; (5)Latching PWM for Cycle-By-Cycle Current Limiting; (6)Soft-Start Control with Latched Overcurrent Reset; (7)Input Undervoltage Lockout with Hysteresis; (8)Low Startup Current (500μA Typ); (9)Internally Trimmed Reference with Undervoltage Lockout; (10)90% Maximum Duty Cycle (Externally Adjustable); (11)Precision Trimmed Oscillator; (12)Voltage or Current Mode Operation to 1.0MHz; (13)Functionally Similar to the UC3823; (14)Pb-Free Packages are Available.
Diagrams
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 MC33023DWR2 |
ON Semiconductor |
Current Mode PWM Controllers Single Ended Voltage |
Data Sheet |
Negotiable |
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MC33023DWR2G |
ON Semiconductor |
Current Mode PWM Controllers Single Ended Voltage or Current Mode PWM |
Data Sheet |
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