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CS51022A: PWM Controller, Enhanced Current Mode, for Forward or Flyback (36-72 V Telecom)

Datasheet: Enhanced Current Mode PWM Controller (36-72V Telecom)
Rev. 8 (129.0kB)
Product Overview
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» Product Change Notification
The CS51021/22/23/24 Fixed Frequency PWM Current Mode Controller family provides all necessary features required for AC-DC or DC-DC primary side control. Several features are included eliminating the additional components needed to implement them externally. In addition to low start-up current (75uA) and high frequency operation capability, the CS51021/22/23/24 family includes over-voltage and under-voltage monitoring, externally programmable dual threshold over-current protection, current sense leading edge blanking, current slope compensation, accurate duty cycle control and an externally available 5V reference. The CS51021 and CS51023 feature bidirectional synchronization capability, while the CS51022 and CS51024 offer a sleep mode with 100uA maximum IC current consumption. The CS51021/22/23/24 family is available in a 16 lead narrow body SO package.
Features
 
  • Under-voltage Protection Monitor
  • Fixed Frequency Current Mode Control
  • Accurate Maximum Duty Cycle Limit
  • Bidirectional Synchronization (CS51021A)
  • Leading Edge Current Sense Blanking
  • Programmable Slope Compensation
  • 75 mA Max.Startup Current
  • 50ns PWM Propagation Delay
  • Programmable Soft Start
  • 1.0 MHz Switching Frequency
  • Programmable Dual Threshold Overcurrent Protection with Delayed
  • 1.0 A Sink/Source Gate Drive
  • 100 A Max Sleep Current (CS51022A)
  • Over-voltage Protection Monitor with Programmable Hysteresis
  • Pb-Free Packages are Available
Applications   End Products
  • 36 - 72V Telecom
 
  • DC-DC Telecom Bricks
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (1)
Package Drawings (2)  
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CS51022ADBR2G Active
Pb-free
Halide free
CS51022A TSSOP-16 948F-01 1 260 Tape and Reel 2500 $1.6666
CS51022AEDR16G Active
Pb-free
Halide free
CS51022A SOIC-16 751B-05 1 260 Tape and Reel 2500 $1.2
Market Leadtime (weeks) : 13 to 16
ON Semiconductor   (2020-09-02 00:00) : 7,110
Market Leadtime (weeks) : 2 to 4
ON Semiconductor   (2020-09-02 00:00) : 7,500

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Phases
Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
Package Type
CS51022ADBR2G  
 $1.6666 
Pb
H
 Active   
Step-Down
1
Current Mode
8.2
20
Up to 1000
TSSOP-16
CS51022AEDR16G  
 $1.2 
Pb
H
 Active   
Step-Down
1
Current Mode
8.2
20
Up to 1000
SOIC-16
Case Outlines
751B-05    948F-01   
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