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HT2263 - Current Mode PWM Controller

General Description

HT2263 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications in sub 30W range.

PWM switching frequency at normal operation is externally programmable and trimmed to tight range.

Key Features

  • ‹ Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design. ‹ Audio Noise Free Operation ‹ External Programmable PWM Switching Frequency ‹ Internal Synchronized Slope Compensation ‹ Low VDD Startup Current and Low Operating Current (1.4mA) ‹ Leading Edge Blanking on Current Sense Input ‹ Good Protection Coverage With Auto Self-Recovery ‹ VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO) ‹ Gate Output Maximum Voltage Clamp (18V) ‹ Line Input Compe.

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Datasheet Details

Part number HT2263
Manufacturer HOTCHIP
File Size 434.75 KB
Description Current Mode PWM Controller
Datasheet download datasheet HT2263 Datasheet

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Other Datasheets by HOTCHIP

Part Number Description
HT2269 Current Mode PWM Controller
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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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HT2263 Current Mode PWM Controller GENERAL DESCRIPTION HT2263 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications in sub 30W range. PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VDD low startup current and low operating current contribute to a reliable power on startup design with HT2263. A large value resistor could thus be used in the startup circuit to minimize the standby power.