CS51221EDR16G by ON Semiconductor | Voltage Mode PWM Controller | Avnet ASIA
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CS51221EDR16G

ON Semiconductor

Voltage Mode PWM Controller -0.3V to 15V 1A 16-Pin SOIC T/R

Manufacturer Part #: CS51221EDR16G

Alternate Part #: CS51221EDR16G


legend RoHS Compliant

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The CS51221 Enhanced Voltage Mode PWM Controller contains all of the features necessary for basic voltage mode operation. This PWM controller has been optimized for high frequency primary side control operation. In addition, this device includes such features as: Soft Start, accurate duty cycle limit control, less than 50uA startup current, over and under voltage protection and bidirectional synchronization. The CS51221 is available in a SOIC-16 and TSSOP-16 surface mount packages.

Key Features

  • 1MHz Frequency Capability
  • Fixed Frequency Voltage Mode Operation, with Feed Forward
  • Thermal Shutdown
  • Under Voltage Lock-out
  • Accurate Programmable Max Duty Cycle Limit
  • 1A Sink/Source Gate Drive
  • Programmable Pulse-by-Pulse Overcurrent Protection
  • Leading Edge Current Sense Blanking
  • 75ns Shutdown Propagation Delay
  • Programmable Soft Start
  • Undervoltage Protection
  • Overvoltage Protection with Programmable Hysteresis
  • Bi-directional Synchronization
  • 25ns GATE Rise and Fall Time (1nF load)
  • 3.3V 3% Reference Voltage Output
  • Pb-Free Package is Available

Technical Attributes

Description
Value
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Maximum Duty Cycle
90 %
Max Processing Temp
260
On/Off Pin
No
Synchronous Pin
Yes
Switching Frequency
1000 kHz
Mounting
Surface Mount
Lead Finish
Matte Tin
Topology
Buck|Flyback|Forward
Output Voltage
-0.3 to 15 V
Fall Time
25 ns
Number of PWM Outputs
1
Output Current
1000 mA
Rise Time
60 ns
Adjustable Output
Yes

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8471.50.0150
HTSN:
8471.50.0150
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101
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