CS5121, CS5121L, CS51221 Selling Leads, Datasheet
MFG:CHERRY Package Cooled:SOP D/C:08+/09+
CS5121, CS5121L, CS51221 Datasheet download
Part Number: CS5121
MFG: CHERRY
Package Cooled: SOP
D/C: 08+/09+
CS5121, CS5121L, CS51221
- Table of contents:
Info of CS5121
Info of CS5121L
Info of CS51221
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About CS5012A
PDF/DataSheet Download
Datasheet: CS5012A
File Size: 1230709 KB
Manufacturer: CIRRUS [Cirrus Logic]
Download : Click here to Download
About CS5012A
PDF/DataSheet Download
Datasheet: CS5012A
File Size: 1230709 KB
Manufacturer: CIRRUS [Cirrus Logic]
Download : Click here to Download
About CS51221
PDF/DataSheet Download
Datasheet: CS51221
File Size: 168371 KB
Manufacturer: CHERRY [Cherry Semiconductor Corporation]
Download : Click here to Download
CS51221 General Description
The CS51221 fixed frequency feed forward 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 50A startup current, over and under voltage protection, and bidirectional synchronization.
The CS51221 is available in 16 lead PDIP and SO narrow surface mount packages.
The CS51221 is available in 16 lead PDIP and SO narrow surface mount packages.
CS51221 Maximum Ratings
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited
Lead Temperature Soldering: Wave Solder (through hole styles only) . . 10 Sec. max 260°C Peak
Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . 60 Sec max. above 183°C, 230°C Peak
Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65 to 150°C
ESD (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 2kV
Lead Temperature Soldering: Wave Solder (through hole styles only) . . 10 Sec. max 260°C Peak
Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . 60 Sec max. above 183°C, 230°C Peak
Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65 to 150°C
ESD (Human Body Model). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 2kV
CS51221 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 Over Current Protection
·Leading Edge Current Sense Blanking
·75ns Shutdown Propagation Delay
·Programmable Soft Start
·Under Voltage Protection
·Over Voltage Protection with Programmable Hysteresis
·Bidirectional Synchronization
·25ns GATE Rise and Fall Time (1nF load)
·3.3V 3% Reference Voltage Output
·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 Over Current Protection
·Leading Edge Current Sense Blanking
·75ns Shutdown Propagation Delay
·Programmable Soft Start
·Under Voltage Protection
·Over Voltage Protection with Programmable Hysteresis
·Bidirectional Synchronization
·25ns GATE Rise and Fall Time (1nF load)
·3.3V 3% Reference Voltage Output
CS51221 Connection Diagram
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