What Is ICE3BR0665J IC?

What Is ICE3BR0665J?
- The ICE3BR0665J is a high-performance IC in the CoolSET®-F3R jitter series from Infineon Technologies.
- The ICE3BR0665J is designed for offline battery adapters and cost-effective, low-power SMPS applications.
- This IC offers advanced power management features, such as active burst mode, auto-restart protection, propagation delay compensation and soft start and gate driving.
- The ICE3BR0665J also includes frequency jitter to reduce electromagnetic interference (EMI).
Pinout of ICE3BR0665J
1. BA: extended Blanking & Auto-restart
2. FB: FeedBack
3. CS: Current Sense/ 650V CoolMOS® Source
4. Drain: 650V CoolMOS® Drain
5. Drain: 650V CoolMOS® Drain
6. NC: Not Connected
7. VCC: Controller Supply Voltage
8. GND: Controller GrouND
Circuit of ICE3BR0665J
The ICE3BR0665J is a chip designed for switching power supplies, responsible for controlling and adjusting the flow of current to provide stable power to devices. In this chip, current first enters through the high-voltage Drain pin, similar to water flowing into a pump. The chip’s control section monitors the current level via the CS pin to prevent overload. The FB pin receives feedback signals from the circuit and adjusts output power according to the device’s needs.
As current flows through the chip’s internal switch, the circuit adjusts the output frequency based on load changes, ensuring stable operation at different power requirements. Additionally, the BA pin can set the protection time window, VCC supplies operating power to the chip, and the GND pin provides the return path, completing the power supply cycle.
Specification of ICE3BR0665J
Topology: Flyback
Input Voltage Range: 650V
Operating Frequency: 65 kHz
Voltage - Start Up: 18 V
Voltage - Supply (Vcc/Vdd): 10.5V ~ 25V
Duty Cycle: 75%
Power (Watts): 74 W
Operating Temperature: -40°C ~ 150°C
Gate Drive: Soft gate drive
Package Type: 8-DIP
Highlights of ICE3BR0665J
Active Burst Mode to reach the lowest Standby Power Requirements < 50mW
Auto Restart protection for overload, overtemperature, overvoltage
External auto-restart enable function
Built-in soft start and blank window
Extendable blanking Window for high load jumps
Built-in frequency jitter and soft driving for low EMI
Green Mould Compound
Pb-free lead plating; RoHS compliant
Features of ICE3BR0665J
- 650V avalanche rugged CoolMOS® with built-in Startup Cell
- Active Burst Mode for lowest Standby Power
- 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 provides a wide VCC range
- Built-in Frequency jitter and soft driving for low EMI
Package of ICE3BR0665J
The ICE3BR0665J uses an 8-DIP package, suitable for low-power applications such as switch-mode power supplies. The typical dimensions of the 8-DIP package are as follows: a pin pitch of 2.54 mm, an overall width of approximately 7.62 mm, a thickness of about 3.3 mm, and a pin length of around 3.3 mm. The total package length is approximately 10 mm. This packaging supports efficient heat dissipation and is easy to insert or solder onto a PCB.
Where to Use ICE3BR0665J?
The ICE3BR0665J is mainly used in low-power switching power supplies and is widely applicable in devices such as battery adapters, DVD players, Blu-ray players, and set-top boxes. These devices typically require stable power supply and low standby power consumption, and the active burst mode of the ICE3BR0665J allows it to automatically reduce power consumption when full load is not needed.
Additionally, the ICE3BR0665J includes various protection features, such as overload protection, over-temperature protection, and an automatic restart mechanism. This enables it to respond quickly to sudden load changes or abnormal conditions, preventing circuit damage.
How to Use ICE3BR0665J?
To build a switching power supply circuit with the ICE3BR0665J control chip, follow these clear steps. First, ensure correct power and ground connections. Connect the positive input voltage to the Drain pins (4 and 5) and the ground to the GND pin (8). Next, link the VCC pin (7) to a regulated power source in the circuit.
Then, set up feedback control. Connect the voltage feedback signal to the FB pin (2), which helps keep the output voltage within the desired range. This pin adjusts the output current when load requirements change. Attach the CS pin (3) to a current-sensing resistor to prevent overload.
Finally, configure protection features as needed. Connect a capacitor to the BA pin (1) to adjust the overload protection timing window. After confirming all connections, power up the circuit and check if the output is stable.
FAQs
What is the ICE3BR0665J used for?
The ICE3BR0665J is mainly used in low-power applications, like battery adapters, DVD players, Blu-ray players, and set-top boxes. It aims to help maintain a stable power supply with efficient energy usage in standby mode.
How does the ICE3BR0665J handle protection?
The chip includes multiple protection features such as overload, over-temperature, and auto-restart capabilities. The BA pin allows for the adjustment of protection timing by connecting a capacitor to extend the blanking time for overload protection.
What is the active burst mode?
Active burst mode is a feature that reduces power consumption when the device is in standby mode or under low load.