Key facts
- Brand
- Cherry
- Model
- CS51221
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-12
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Cherry Semiconductor CS51221 Enhanced Voltage Mode PWM Controller Datasheet
The CS51221 is a fixed frequency feed forward voltage mode PWM controller optimized for high frequency primary side control operation. It includes features such as soft start, accurate duty cycle limit control, over and under voltage protection, and bidirectional synchronization. The device is available in 16 lead PDIP and SO narrow surface mount packages.
Read onlineCherry CS51221 specifications
| Frequency Capability | 1MHz |
|---|---|
| Startup Current | less than 50uA |
| Reference Voltage | 3.3V 3% |
| Gate Drive Output | 1A Sink/Source |
| Shutdown Propagation Delay | 75ns |
| GATE Rise and Fall Time | 25ns (1nF load) |
| Thermal Shutdown | 125 to 180°C |
Source: Cherry Semiconductor CS51221 Enhanced Voltage Mode PWM Controller Datasheet
All Cherry CS51221 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum frequency capability of the CS51221?
The device supports a maximum frequency of 1 MHz.
From: Cherry Semiconductor CS51221 Enhanced Voltage Mode PWM Controller Datasheet
What are the available package options for the CS51221?
The CS51221 is available in 16 lead PDIP and SO narrow surface mount packages.
From: Cherry Semiconductor CS51221 Enhanced Voltage Mode PWM Controller Datasheet
What is the startup current of the CS51221?
The device includes less than 50uA startup current.
From: Cherry Semiconductor CS51221 Enhanced Voltage Mode PWM Controller Datasheet
Does the controller support bidirectional synchronization?
Yes, it includes bidirectional synchronization features.
From: Cherry Semiconductor CS51221 Enhanced Voltage Mode PWM Controller Datasheet