SF60686
Classification:Charger Release time:2022-12-15 15:25:35 Author: 赛威科技 Source:
SF60686 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.

NC-Cap/super-QR/PSR-IITM CV/CC Power Switch



FEATURES

   Built-in High Voltage Power BJT

   Proprietary NC-Cap/super-QR/PSR-IITM (Quasi-Resonant & Primary Side Regulation) Control:

±4% CC and CV Precision

●  Proprietary “Audio Noise Cancellation” Control

● Built-in “Fast Dynamic Response” Control to Meet USB Charge Requirements

● Proprietary “Zero-Output Startup” Control

● Proprietary “Smart Output Short Protection”

● Without External Compensation/Filtering Capacitor Needed

● Max. 50V Output for AC/DC LED Lighting

   Less than 100mW Standby Power

   Proprietary Cable Drop Compensation

   Multi Mode Control

   Dynamic Base Drive for High Efficiency

   Wide VDD Operating Range

   9.7V UVLO Hysteresis Window

   Cycle-by-Cycle Current Limiting

   Leading Edge Blanking (LEB)

   Built-in Soft Start, Pin Floating Protection

   VDD UVLO, OVP, VOUT OVP, OLP, SCP

 

APPLICATIONS

   Battery chargers

   Replaces linear transformer and RCC SMPS

   Small power adapter

   AC/DC LED lighting

GENERAL DESCRIPTION

SF60686 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. 

SF60686 has built-in proprietary NC-Cap/super-QR/PSR-IITM 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.

SF60686 integrates proprietary “Audio Noise Cancellation” control for audio noise free operation. The IC has built-in “Fast Dynamic Response” control to meet USB Charge requirements. SF60686 also integrates proprietary “Zero-Output Startup” control to achieve startup when output is near zero voltage. The IC has proprietary “Smart Output Short Protection”, which can protect the system with large leakage inductance when output is short circuit.

SF60686 integrates functions and protections of FB Short Protection, Under Voltage Lockout (UVLO), VDD Over Voltage Protection (VDD OVP), VOUT Over Voltage Protection (VOUT OVP), Output Over Load Protection (OLP), Output Short Circuit Protection (SCP), Soft Start, Cycle-by-cycle Current Limiting (OCP), Pin Floating Protection, VDD Clamping.

SF60686 is available SOP8 packages.

TYPICAL APPLICATION

SF60686(1).png

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