feedback
Rate this webpage
Need
Support?

MC33025: Up-to-1 MHz Dual Output (Push-pull or H-Bridge) Voltage-or-Current-Mode PWM Controller

Datasheet: High Speed Double-Ended PWM Controller
Rev. 9 (493.0kB)
Product Overview
»View Reliability Data
»View Material Composition
» Product Change Notification
The MC34025 series are high speed, fixed frequency, double-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, steering flip-flop, and dual high current totem pole outputs ideally suited for driving power MOSFETs.

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 Outputs
  • Dual High Current Totem Pole Outputs
  • 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 mA Typ)
  • Internally Trimmed Reference with Undervoltage Lockout
  • 45% Maximum Duty Cycle (Externally Adjustable)
  • Precision Trimmed Oscillator
  • Voltage or Current Mode Operation to 1.0 MHz
  • Functionally Similar to the UC3825 Simplified
  • Pb-Free Packages are Available
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (2)
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
MC33025DWG Active, Not Rec
Pb-free
Halide free
MC33025 SOIC-16W 751G-03 3 260 Tube 47 $2.869
MC33025DWR2G Active
Pb-free
Halide free
MC33025 SOIC-16W 751G-03 3 260 Tape and Reel 1000 $2.5479
MC33025PG Obsolete
Pb-free
Halide free
MC33025 PDIP-16 648-08 NA Tube 25  
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 188
FutureElectronics   (2020-08-19 00:00) : <100
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 4,000
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Control Mode
fsw Typ (kHz)
Stand-by Mode
UVLO (V)
Short Circuit Protection
Latch
Soft Start
VCC Max (V)
Drive Cap. (mA)
Package Type
MC33025DWR2G  
 $2.5479 
Pb
H
 Active   
Push-Pull
Current/Voltage Mode
1000
No
Yes
Yes
No
Yes
30
200 / 200
SOIC-16W
Case Outlines
648-08    751G-03   
Packages
MC33025: Up-to-1 MHz Dual Output (Push-pull or H-Bridge) Voltage-or-Current-Mode PWM Controller
Previously Viewed Products
Clear List

Your request has been submitted for approval.
Please allow 2-5 business days for a response.
You will receive an email when your request is approved.
Request for this document already exists and is waiting for approval.