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16 SOIC Pin View
Integrated Circuits (ICs)

CS51021AEDR16G

Obsolete
ON Semiconductor

ENHANCED CURRENT MODE PWM CONTROLLER FOR FORWARD OR FLYBACK (36-72 V TELECOM)

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16 SOIC Pin View
Integrated Circuits (ICs)

CS51021AEDR16G

Obsolete
ON Semiconductor

ENHANCED CURRENT MODE PWM CONTROLLER FOR FORWARD OR FLYBACK (36-72 V TELECOM)

Deep-Dive with AI

DocumentsDatasheetDatasheet+1

Technical Specifications

Parameters and characteristics for this part

SpecificationCS51021AEDR16G
Clock SyncTrue
Control FeaturesCurrent Limit, Soft Start
Frequency - Switching1 MHz
FunctionStep-Up/Step-Down
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive, Isolation Capable
Output Phases1
Output TypeTransistor Driver
Package / Case16-SOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package16-SOIC
Synchronous RectifierFalse
TopologyForward Converter, Flyback, Push-Pull
Voltage - Supply (Vcc/Vdd) [Max]20 V
Voltage - Supply (Vcc/Vdd) [Min]7.7 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

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Description

General part information

CS51021A Series

The CS51021 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 (75 µA)and high frequency operation capability, the Enhanced Current Mode PWM Controller includes overvoltage and undervoltage monitoring, externally programmable dual threshold overcurrent protection, current sense leading edge blanking, current slope compensation, accurate duty cycle control and an externally available 5.0 volt reference. The CS51021A features bidirectional synchronization capability, while the CS51022A offers a sleep mode with 100 µA maximum IC current consumption. The CS51021A/2A Enhanced Current Mode PWM Controllers are available in a SOIC-16 or TSSOP-16 lead package.