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Technical content
©SiFirst Technology - 1 - Confidential SiFirst_DS_6010N_V1.2 SF6010N
FEATURES
◆ Proprietary “ Audio Noise Cancellation ” Control ◆ Built-in AC Line CC Compensation ◆ Proprietary “Zero-Output Startup” Control ◆ Proprietary “Smart Output Short Protection” ◆ 11.5V UVLO Hysteresis Window ◆ FB Short Protection ◆ Direct Drive of Low Cost BJT ◆ Proprietary NC-Cap/PSRTM Control ◆ Proprietary Cable Drop Compensation ◆ Multi Mode Control ◆ Wide VDD Operating Range (7V to 24V) ◆ ±5% CC and CV Precision ◆ Low Standby Power Under 70mW ◆ Compensate for Transformer Inductance Tolerances and Line Voltage Variation ◆ Cycle-by-Cycle Current Limiting ◆ Leading Edge Blanking (LEB) ◆ Built-in Soft Start ◆ Pin Floating Protection ◆ VDD UVLO, OVP & Clamp
APPLICATIONS
◆ Battery chargers ◆ Replaces linear transformer and RCC SMPS ◆ Small power adapter ◆ AC/DC LED lighting GENERAL DESCRIPTION SF6010N is a high precision, highly integrated DCM (Discontinuous Conduction Mode) Primary Side Regulation (PSR) controller for offline small power converter applications. It can directly drive power BJT, which can further lower system cost. The IC integrates proprietary “Audio Noise Cancellation ” control for audio noise free operation. SF6010N 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 70mW standby power. SF6010N 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. SF6010N integrates functions and protections of FB Short Protection, Under Voltage Lockout (UV LO), VDD Over Voltage Protection ( VDD OVP), Soft Start, Cycle-by-cycle Current Limiting (OC P), Pin Floating Protection, VDD Clamping. SF6010N is available in SOT23-5 and SOT23- 6 packages. TYPICAL APPLICATION AC IN VDD BASEGND FB SF6010N DC Out CS Pin Configuration NC-Cap/PSRTM (Primary Side Regulation) CV/CC Controller Sifirst Confidential
©SiFirst Technology - 2 - Confidential SiFirst_DS_6010N_V1.2 SF6010N GND BASE CS VDD FB SOT23-5 GND BASE CS VDD FB SOT23-6 NC
Ordering Information
Part Number Top Mark Package Tape & Reel SF6010NMGT .0NYWW SOT23-5 Green Yes SF6010NLGT .0NYWW SOT23-6 Green Yes Comparison between SF6010N and SF6010 Parameter or Function SF6010N SF6010 VDD UVLO(ON)/(OFF) 18V/6.5V 15V/9.5V Audio Noise Cancellation Control Yes Constant Current (CC) Performance Built in AC Line CC Compensation Protections “Zero Output Startup Control” “Smart Output Short Protection” “FB Short Protection” Output OVP Yes Marking Information 0N YWW 0N YWW Dot: Pin1 Mark YWW: Year & Week Code Pin Description Pin Num Pin Name I/O Description
1 GND P Ground
2 CS I Current sense pin. 3 BASE O Base drive for BJT. 4 FB I System feedback pin. This control input regulates both the output voltage in CV mode and output current in CC mode based on the flyback voltage of the auxiliary winding. 5 VDD P IC power supply pin. Sifirst Confidential