Overview
The FSL206MRN1, produced by Fairchild Semiconductor (now part of ON Semiconductor), is a high-performance integrated power switch designed for offline Switched-Mode Power Supplies (SMPS). This device combines a Pulse-Width Modulator (PWM) controller with a high-voltage power regulator, integrating an avalanche-rugged SENSEFET. It is optimized to minimize external components, reduce standby power loss, and attenuate EMI emissions. The FSL206MRN1 is particularly suited for applications requiring high efficiency and reliability in power supply systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Drain Pin Voltage (VDS) | -0.3 to 650 | V |
| Supply Voltage (VCC) | - to 26 | V |
| Operating Frequency | 61 to 73 | kHz |
| No-Load Power Loss (without Bias Winding) | < 150 | mW at 265 Vac |
| No-Load Power Loss (with Bias Winding) | < 25 | mW at 265 Vac |
| Peak Current Limit | 0.54 to 0.66 | A |
| Maximum Duty Cycle | 66 to 78 | % |
| Operating Junction Temperature | -40 to 150 | °C |
| Operating Ambient Temperature | -40 to 125 | °C |
Key Features
- Internal Avalanche-Rugged SENSEFET with 650 V rating
- No need for auxiliary bias winding
- Frequency modulation for attenuating EMI
- Line Under-Voltage Protection (LUVP)
- Pulse-by-Pulse Current Limiting
- Low Under-Voltage Lockout (UVLO)
- Ultra-low operating current: 300 µA
- Built-in soft-start and startup circuit
- Burst-mode operation with very low operating current
- Thermal Shutdown (TSD) protection
- Abnormal Over-Current Protection (AOCP) and Over-Voltage Protection (OVP)
Applications
The FSL206MRN1 is designed for high-performance offline Switched-Mode Power Supplies (SMPS), particularly in applications such as:
- Consumer electronics power supplies
- Industrial power supplies
- LED lighting power supplies
- Telecom and networking equipment power supplies
Q & A
- What is the primary function of the FSL206MRN1?
The FSL206MRN1 is an integrated power switch designed for offline Switched-Mode Power Supplies (SMPS), combining a PWM controller with a high-voltage power regulator. - What is the maximum drain pin voltage for the FSL206MRN1?
The maximum drain pin voltage is 650 V. - Does the FSL206MRN1 require an auxiliary bias winding?
No, the FSL206MRN1 does not require an auxiliary bias winding. - What is the operating frequency range of the FSL206MRN1?
The operating frequency range is 61 to 73 kHz. - What is the no-load power loss of the FSL206MRN1 without a bias winding?
The no-load power loss is less than 150 mW at 265 Vac. - What protection features does the FSL206MRN1 include?
The FSL206MRN1 includes Thermal Shutdown (TSD) protection, Abnormal Over-Current Protection (AOCP), Over-Voltage Protection (OVP), and Line Under-Voltage Protection (LUVP). - What is the ultra-low operating current of the FSL206MRN1?
The ultra-low operating current is 300 µA. - Does the FSL206MRN1 have built-in soft-start and startup circuitry?
Yes, the FSL206MRN1 has built-in soft-start and startup circuitry. - What is the purpose of the burst-mode operation in the FSL206MRN1?
The burst-mode operation reduces power loss in standby mode. - What are some common applications for the FSL206MRN1?
Common applications include consumer electronics power supplies, industrial power supplies, LED lighting power supplies, and telecom and networking equipment power supplies.
