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EnglishSF6078 integrates proprietary "Zero-Output Startup" control to achieve startup when output is near zero voltage. The IC also has proprietary "Smart Output Short Protection", which can limit maximum po
SF6078
PSR Controller & Power Switch
Built-in 700V Power BJT
Proprietary NC-Cap/PSRTM Control
Audio Noise Free Operation
Proprietary "Smart Output Short Protection"
11.5V UVLO Hysteresis Window
FB Short Protection and ±5% CC and CV Precision
Cycle-by-cycle current limiting
Wide VDD Operating Range (7V to 24V)
Compensate for Line voltage variation
Proprietary "Zero-Output Startup" Control
Multi Mode Control
Less than 80mW Standby power
Built-in leading edge blanking (LEB)
Proprietary cable voltage drop compensation in CV mode
Application:
Battery chargers for cellular phones, cordless phones ,PA D, digital cameras ,etc
Replaces linear transformer and RCC SMPS
Small power adapter
AC/DC LED lighting
SF6078 is a high precision, highly integrated DCM (Discontinuous Conduction Mode) Primary Side Regulation (PSR) power switch for offline small power converter applications. It has built-in power BJT, which can further lower system cost.
SF6078 has built-in proprietary NC-Cap/PSRTM control for CV control, which eliminates external compensation or filtering capacitor. It has built-in cable drop compensation function, which can provide excellent CV performance. The IC uses Multi Mode Control to improve efficiency and reliability and to decrease audio noise energy @ light loadings. The IC can achieve less than 80mW standby power.
SF6078 integrates proprietary "Zero-Output Startup" control to achieve startup when output is near zero voltage. The IC also has proprietary "Smart Output Short Protection", which can limit maximum power when output is short circuit.
SF6078 integrates functions and protections of FB Short Protection, Under Voltage Lockout (UVLO), VDD Over Voltage Protection (VDD OVP), Cycle-by-cycle Current Limiting (OCP), Pin Floating Protection, VDD Clamping.
SF6078 is available in DIP7 package.
ID | 型号 | 拓扑结构 | 驱动模式 | 待机功耗</span> | 最大输出功率</span> | 六级能效 | 封装 |
11 | SF6772 | super-QR/PSR™ | 1A MOS Inside | 70mw | 6w | √</span> | SOP8 |
12 | SF6778 | super-QR/PSR™ | 2A MOS Inside | 90mw | 15w | √</span> | DIP8 |
13 | SF5940 | NC-Cap/PSR-||™ | External MOS | 70mw | 25w | - | SOT23-5 |
14 | SF6025 | NC-Cap/PSR-||™ | External BJT | 80mw | 12w | - | SOT23-6 |
15 | SF6078 | NC-Cap/PSR-||™ | 4A BJT inside | 80mw | 12w | - | DIP7 |
16 | SF6010H | NC-Cap/PSR™ | External BJT | 80mw | 6w | - | SOT23-6 |
17 | SF5928S | NC-Cap/PSR™ | 2A MOS Inside | 90mw | 15w | - | DIP8 |
18 | SF5948 | NC-Cap/PSR-||™ | 2A MOS Inside | 90mw | 15w | - | DIP8 |
19 | SF6020P | NC-Cap/PSR-||™ | External BJT | 90mw | 6w | - | SOT23-5 |
20 | SF6020C | NC-Cap/PSR-||™ | - | - | - | - | SOT23-5 |
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