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CS5124: PWM Controller, Integrated, Current Mode, for Forward or Flyback (36 - 75 V Telecom Supply)

Datasheet: High Performance, Integrated Current Mode PWM Controllers
Rev. 7 (168.0kB)
Product Overview
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The CS5124 is an Integrated Current Mode PWM Controller designed specifically for dc-dc converters found in the 48V telecommunications industry. This PWM Controller integrates many commonly required current mode power supply features and allows the power supply designer to realize substantial cost and board space savings.

CS5124: 400kHz w/VBIAS Pin, 195mV first current sense threshold

The CS5124 integrates the following features: Internal Oscillator, Slope Compensation, Sleep On/Off, Under Voltage Lock Out, Thermal Shutdown, Soft Start Timer, Low Voltage Current Sense for Resistive Sensing, Second Current Threshold for Pulse by Pulse Over Current Protection, a Direct Optocoupler Interface and Leading Edge Current Blanking.

The CS5124 Integrated Current Mode PWM Controller has supply range of 7.7V to 20V and can be powered from a 36-75.0 volt telecom supply.
Features
 
  • Line UVLO Monitoring
  • Low Current Sense Voltage for Resistive Current Sensing
  • Bias for Start up Circuitry
  • Thermal Shutdown
  • Sleep On/Off Pin
  • Soft Start Timer
  • Leading Edge Blanking
  • Direct Optocoupler Interface
  • 90ns Propagation Delay
  • 35ns Driver Rise and Fall Times
  • Sleep Mode
  • Pb-Free Package is Available
Applications   End Products
  • Power Over Ethernet (PoE)
 
  • IP / VOIP Phone
Availability & Samples
Specifications
Case Outlines
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CS5124XD8G Active
Pb-free
Halide free
CS5124 SOIC-8 751-07 1 260 Tube 98 $1.56
CS5124XDR8G Active
Pb-free
Halide free
CS5124 SOIC-8 751-07 1 260 Tape and Reel 2500 $1.56
Market Leadtime (weeks) : 13 to 16
ON Semiconductor   (2020-09-02 00:00) : 5,292
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2020-09-02 00:00) : 2,500

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
Phases
Control Mode
VCC Min (V)
VCC Max (V)
fSW Typ (kHz)
Package Type
CS5124XD8G  
 $1.56 
Pb
H
 Active   
Flyback
Forward
Step-Down
1
Current Mode
7.6
75
400
SOIC-8
CS5124XDR8G  
 $1.56 
Pb
H
 Active   
Flyback
Forward
Step-Down
1
Current Mode
7.6
75
400
SOIC-8
Case Outlines
751-07   
Packages
CS5124: PWM Controller, Integrated, Current Mode, for Forward or Flyback (36 - 75 V Telecom Supply)
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