Current

ICE3BS02 Datasheet – SMPS Current Mode Controller – Infineon

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Part Number: ICE3BS02

Function: Off-Line SMPS Current Mode Controller with integrated 500V Startup Cell

Package: DIP, SO 8 Pin type

Manufacturer: Infineon Technologies

Images :

ICE3BS02 datasheet pdf

Description

ICE3BS02 is an off-line SMPS current-mode controller with an integrated 500V startup cell, designed for compact flyback power supplies and available in an 8-pin package.  The F3 Controller provides Active Burst Mode to reach the lowest Standby Power Requirements <100mW at no load. As the controller is always active during Active Burst Mode, there is an immediate response on load jumps without any black out in the SMPS. In Active Burst Mode the ripple of the output voltage can be reduced <1%.

Product Highlights

• Active Burst Mode to reach the lowest Standby Power Requirements < 100mW

• Protection features (Auto Restart Mode) to increase robustness and safety of the system

• Adjustable Blanking Window for high load jumps to increase system reliability

• PB-free Plating and RoHS compilant

Features

1. 500V Startup Cell switched off after Start Up

2. Active Burst Mode for lowest Standby Power @ light load controlled by Feedback Signal

3. Fast load jump response in Active Burst Mode

4. 100/67kHz internally fixed switching frequency

5. Auto Restart Mode for Overtemperature Detection

6. Auto Restart Mode for VCC Overvoltage Detection

7. Internal PWM Leading Edge Blanking

8. Soft switching for low EMI

Pinouts

ICE3BS02 Datasheet

Pin Functionality

SoftS (Soft Start & Auto Restart Control)

The SoftS pin combines the functions of Soft Start during Start Up and error detection for Auto Restart Mode. These functions are implemented and can be adjusted by means of an external capacitor at SoftS to ground. This capacitor also provides an adjustable blanking window for high load jumps,
before the IC enters into Auto Restart Mode.

FB (Feedback)

The information about the regulation is provided by the FB Pin to the internal Protection Unit and to the internal PWM Comparator to control the duty cycle. The FB-Signal controls in case of light load the Active Burst Mode of the controller.

CS (Current Sense)

The Current Sense pin senses the voltage developed on the series resistor inserted in the source of the external PowerMOS. If CS reaches the internal threshold of the Current Limit Comparator, the Driver output is immediately switched off. Furthermore the current information is provided for the PWM-Comparator to realize the Current Mode.

Gate

The Gate pin is the output of the internal driver stage connected to the Gate of an external PowerMOS.

HV (High Voltage)

The HV pin is connected to the rectified DC input voltage. It is the input for the integrated 500V Startup Cell.

VCC (Power supply)

The VCC pin is the positive supply of the IC. The operating
range is between 8.5V and 21V.

GND (Ground)

The GND pin is the ground of the controller.

Applications

  • Off-line flyback power supplies
  • AC-DC adapters
  • Low-power isolated SMPS
  • Standby power supplies
  • Auxiliary power supplies
  • Consumer electronic power supplies
  • Compact embedded power converters
  • Low-standby-power switching power supplies

Other data sheets are available within the file: ICE3AS02, ICE3AS02G, ICE3BS02G, Q67040-S4637-A101

ICE3BS02 PDF Datasheet

ICE3BS02 pdf

ICE3BS02 datasheet

3BR1565, 3BR1565JP Datasheet – SMPS Current Mode Controller

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Part Number: 3BR1565, ICE3BR1565JF

Function: SMPS Current Mode Controller

Package: TO220-6PIN

Manufacturer: Infineon Technologies

Image

3BR1565 datasheet pinout

Description

3BR1565 is a CoolSET-F3R FullPak off-line SMPS controller featuring a 650V avalanche-rugged CoolMOS power stage with a built-in startup cell and a wide VCC range up to 25V using BiCMOS technology. It integrates Active Burst Mode for standby power below 100mW at no load and Vin = 270VAC, along with fast load-jump response, 67kHz fixed switching frequency, built-in soft start, and comprehensive Auto Restart protection. The device targets off-line adapters and higher-power SMPS applications such as DVD R/W, DVD combi systems, set-top boxes, and other compact power supply designs, with the ICE3BR1565JF version specified with 1.5Ω RDS(on) and maximum output power of 68W/125W.

The CoolSET-F3R FullPak is the enhanced version of CoolSET-F3 and targets for the Off-Line Adapters and high power range SMPS in DVD R/W, DVD Combi, set top box, etc. It has a wide Vcc range to 25V by adopting the BiCMOS technology. With the merit of Active Burst Mode, it can achieve the lowest Standby Power Requirements (<100mW) at no load and Vin = 270VAC.

Features

  • 650V avalanche-rugged CoolMOS with built-in startup cell
  • Active Burst Mode for lowest standby power
  • Standby power below 100mW at no load and Vin = 270VAC
  • Fast load-jump response in Active Burst Mode
  • 67kHz internally fixed switching frequency
  • Wide VCC range up to 25V
  • BiCMOS technology
  • Auto Restart Protection Mode for overload, open-loop, VCC undervoltage, overtemperature, and overvoltage
  • Built-in soft start
  • Built-in blanking window with extendable function
  • RDS(on) of 1.5Ω for ICE3BR1565JF
  • Maximum output power of 68W/125W

Pinout

3BR1565 pinout

Absolute Maximum Ratings (Tc = 25 °C)

Parameter Symbol Value Unit
CoolMOS Drain Voltage Rating VDS 650 V
VCC Supply Voltage VCC 25 V
On-State Drain-Source Resistance RDS(on) 1.5 Ω
Switching Frequency fSW 67 kHz
Maximum Output Power Pout,max 68/125 W

Working Principle

  • The CoolSET-F3R combines a high-voltage 650V CoolMOS power device with the controller and built-in startup cell for off-line switching power supply operation.
  • The integrated startup cell provides the initial startup function and reduces the need for additional high-voltage startup circuitry.
  • Active Burst Mode reduces switching activity under light-load conditions to achieve very low standby power consumption.
  • The controller remains capable of responding quickly to a sudden increase in load while operating in Active Burst Mode.
  • The internally fixed 67kHz switching frequency provides a defined operating frequency for the SMPS power stage.
  • Built-in soft start controls the initial startup sequence and helps reduce excessive electrical stress during power-up.
  • The blanking window prevents short-duration switching events from unnecessarily activating the protection function and can be extended when required.
  • Auto Restart Protection Mode provides protection against overload, open-loop operation, VCC undervoltage, overtemperature, and overvoltage conditions.

ICE3BR1565JF datasheet

R dson = 1.5 Ohm, ICE3BR1565JF

P out max = 68W / 125W 

How to Choose This Part

  • Choose 3BR1565 when an off-line adapter or higher-power SMPS requires an integrated 650V CoolMOS power stage and controller.
  • It is suitable for applications where standby power below 100mW is required at no load and Vin = 270VAC.
  • The integrated startup cell is useful when minimizing the external component count on the high-voltage primary side.
  • The 67kHz internally fixed switching frequency provides a defined operating point for transformer and EMI design.
  • Consider the 1.5Ω RDS(on) specification of ICE3BR1565JF when evaluating efficiency, conduction loss, and thermal requirements.
  • For higher-power SMPS applications, the stated 68W/125W output power range should be evaluated against the actual converter topology, thermal conditions, and operating environment.

Applications

  • Off-line adapters
  • High-power SMPS
  • DVD R/W power supplies
  • DVD combi power supplies
  • Set-top box power supplies
  • Compact off-line switching power supplies
  • Low-standby-power AC-DC converters

Other data sheets are available within the file: 3BR1565JF, ICE3BR1565JF

3BR1565 Datasheet PDF Download


3BR1565 pdf

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