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MC33023: Up-to-1 MHz Versatile (Voltage-or-Current-Mode) Single-ended PWM Controller

Datasheet: High Speed Single-Ended PWM Controller
Rev. 7 (679.0kB)
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»Product Change Notification (4)
Product Overview
Product Description
The MC34023 series are high speed, fixed frequency, single-ended pulse width modulator controllers optimized for high frequency operation. They are specifically designed for Off-Line and DC-to-DC converter applications offering the designer a cost-effective solution with minimal external components. These integrated circuits feature 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.

Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, and a latch for single pulse metering.

The flexibility of this series allows it to be easily configured for either current mode or voltage mode control.
Features
 
  • 50 ns Propagation Delay to Output
  • High Current Totem Pole Output
  • Wide Bandwidth Error Amplifier
  • Fully-Latched Logic with Double Pulse Suppression
  • Latching PWM for Cycle-By-Cycle Current Limiting
  • Soft-Start Control with Latched Overcurrent Reset
  • Input Undervoltage Lockout with Hysteresis
  • Low Start-Up Current (500 µA Typ)
  • Internally Trimmed Reference with Undervoltage Lockout
  • 90% Maximum Duty Cycle (Externally Adjustable)
  • Precision Trimmed Oscillator
  • Voltage or Current Mode Operation to 1.0 MHz
  • Functionally Similar to the UC3823
  • Pb-Free Packages are Available
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
MC33023DWG Active, Not Rec
Pb-free
Halide free
Up-to-1 MHz Versatile (Voltage-or-Current-Mode) Single-ended PWM Controller SOIC-16W 751G-03 3 Tube 47 $2.0266
MC33023DWR2G Active, Not Rec
Pb-free
Halide free
Up-to-1 MHz Versatile (Voltage-or-Current-Mode) Single-ended PWM Controller SOIC-16W 751G-03 3 Tape and Reel 1000 $2.0266
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 8 to 12
Avnet   (2015-07-09) : >1K
Digikey   (2015-07-09) : <1K
Mouser   (2015-07-09) : <1K
ON Semiconductor   (2015-07-08) : 1,316
Market Leadtime (weeks) : 8 to 12
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