In SF6562, a highly linear analog multiplier with THD optimize is integrated to achieve low THD and high power factor. The zero current detector (ZCD) ensures TM operation. A restart timer is for stan
SF6562
Transition Mode PFC Controller
Built-in Soft Start and Very Low Startup Current
Under Voltage Lockout with 7.7V Hysteresis
VCC Over Voltage Protection
Clear External EA Feedback Network before Power On
Transition Mode (TM)Operation
Highly Linear Analog Multiplier
Proprietary "Frequency Adjusting "for Higher PF and Low THD
Low start-up Current and Operating Current
270KHz Max Frequency Clamp
Trimmed 1.4% Internal Voltage Reference
Restart Timer for Stand-anlone Applications
Built-in leading edge blanking (LEB)
10V to 31V Wide Range of VCC Voltage
800mA Drive Capability

Application:
LED Lighting Application
Single Stage High PF Flyback AC/DC SMPS
SF6562 is a transition mode (TM) power factor correction (PFC) controller for AC-DC switching mode power supply and lighting applications.
SF6562 will clear external EA Feedback Network before IC power on. The IC also has Soft Start control to soften the stress on the MOFET during power on period.
In SF6562, a highly linear analog multiplier with THD optimize is integrated to achieve low THD and high power factor. The zero current detector (ZCD) ensures TM operation. A restart timer is for stand alone applications.
In SF6562, the proprietary "frequency adjusting" can help to improve THD performance, which ensures audio noise free operation. A VCC Over Voltage Protection (VCC OVP) is integrated to improve system reliability. The IC also has proprietary Soft Start Control to soften the stress on the MOSFET during power on period.
In SF6562, the threshold for Output Over Voltage protection (OVP) and Error Amplifier (EA) are trimmed to tight range and internally temperature compensated.
SF6562 integrates functions and protections of Under Voltage Lockout (UVLO), VCC Over Voltage Protection (OVP), Soft start Control, cycle-by-cycle Current Limiting (OCP), GD Clamping, VCC Clamping, Leading Edge Blanking (LEB).
In SF6562, VCC OVP is auto-recovery mode protection.
SF6562 is available in SOP-8 and DIP-8 packages
ID |
型号 |
拓扑结构 |
驱动模式 |
输出电流 |
最大输出功率</h2> |
六级能效 |
封装 |
|---|---|---|---|---|---|---|---|
| 1 | SF6562 | TM mode | External MOS | 0.8A | 500w | Yes | SOP8/DIP8 |


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