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NCP1212 - Current Mode PWM Controller

General Description

Pin Name Function 1 FB Feedback Input 2 BOK Brownout Detect with Hysteresis 3 CS Current Sense Input 4 CT Programmed Oscillator Frequency 5 GND IC Ground 6 DRV Gate Driver Output 7 VCC Positive Supply to IC 8 SS/DMAX Soft--Start Time Programming and Maximum Duty Cycle Selection

Key Features

  • a trimmed oscillator for precise Duty Cycle control, accurate bandgap voltage reference, high gain error amplifier, current sensing comparator and a high current totem pole output gate driver that ideally drives the external power MOSFET. Additionally, the device has built--in programmable Brownout Detect and Soft--Start features to enhance system reliability. Also, the 48%/82% selectable maximum turn on Duty Cycle control and external programmable switching frequency capabilities make this devi.

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Datasheet Details

Part number NCP1212
Manufacturer ON
File Size 400.72 KB
Description Current Mode PWM Controller
Datasheet download datasheet NCP1212 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NCP1212 Current Mode PWM Controller for Both Forward and Flyback Converters NCP1212 is a high performance current mode PWM controller specifically designed for off--line and DC--to--DC converter applications. The device requires very few external components and offers designer additional protection for better system reliability. The device features a trimmed oscillator for precise Duty Cycle control, accurate bandgap voltage reference, high gain error amplifier, current sensing comparator and a high current totem pole output gate driver that ideally drives the external power MOSFET. Additionally, the device has built--in programmable Brownout Detect and Soft--Start features to enhance system reliability.