Description

The ICE3BR1765J is an offline switcher and AC/DC converter component that is part of the CoolSET®-F3R jitter series. It is designed specifically for low-cost SMPS and off-line battery adapters for lower power ranges such as set-top boxes, DVD players, and DVD combis. The CoolSET®-F3R jitter series builds on the outstanding performance of CoolSET®-F3 by adding some new features such as built-in soft start time, built-in blanking window, built-in frequency jitter, soft gate driving, etc. It also has active burst mode, auto-restart protection, propagation delay compensation, among other features.

Specifications and features

• 650V avalanche rugged CoolMOS® with built-in Startup Cell
• Active Burst Mode for lowest Standby Power < 50mW
• Fast load jump response in Active Burst Mode
• 65kHz internally fixed switching frequency
• Auto Restart Protection Mode for Overload, Open Loop, VCC Undervoltage, Overtemperature & Overvoltage
• Built-in Soft Start
• Built-in blanking window with extendable blanking time for short duration high current
• External auto-restart enable pin
• Max Duty Cycle 75%
• Overall tolerance of Current Limiting < ±5%
• Internal PWM Leading Edge Blanking
• BiCMOS technology provide wide VCC range
• Built-in Frequency jitter and soft driving for low EMI

Application Scenarios

The ICE3BR1765J is ideal for off-line battery adapters and low-cost SMPS for lower power ranges such as DVD R/W, DVD Combi, Blue-ray DVD player, set-top box, among other applications. It offers low standby power, fast load jump response, and overload, overtemperature, overvoltage protection.

Comparison

• Built-in soft start time, built-in blanking window, built-in frequency jitter, and soft gate driving result in low EMI.
• Active Burst Mode helps reduce standby power requirements to below 50mW.
• Auto-restart protection and overload, overtemperature, overvoltage protection provide extra safety and reliability.
• External auto-restart enable function allows for additional protection when there is a need to stop power switching immediately.
• Green Mould Compound and Pb-free lead plating make this component environment-friendly.

• The ICE3BR1765J is only suitable for low-power range applications. For high-power ranges, a different component will be required.
• It has an overall tolerance of current limiting < ±5%, which may not be sufficient for some applications.