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CR6853 Datasheet Novel Low Cost Green-power Pwm Controller

Manufacturer: Chip-Rail

Overview: CR6853 Novel Low Cost Green-Power PWM Controller With Low EMI Technique Feature z Low Cost, PWM&PFM&CRM (Cycle Reset Mode) z Low Start-up Current (about 3μA) z Low Operating Current (about 1.2mA) z Current Mode Operation z Under Voltage Lockout (UVLO) z Built-in Synchronized Slope pensation z Built-in Low EMI Technique z Programmable PWM Frequency z Audio Noise Free Operation z Leading edge Blanking on Sense input z Constant output power limiting for universal AC input Range z SOT-23-6L 、SOP8 and DIP-8 Pb-Free Applications z Switching AC/DC Adaptor z Battery Charger z Open Frame Switching Power Supply Packaging z Good Protection Coverage With Auto Self-Recovery z patible with SG6848 (6849) / SG5701/SG5848/LD7535 (7550) / OB2262 (2263)/OB2278(2279) z plete Protection with ¾ Soft Clamped GATE output voltage 18.0V ¾ VDD over voltage protect 34.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The CR6853 is a highly integrated low cost current mode PWM controller, which is ideal for small power current mode of offline AC-DC fly-back converter applications.

Making use of external resistors, the IC changes the operating frequency and automatically enters the PFM/CRM (Cycle Reset Mode) under light-load/zero-load conditions.

This can minimize standby power consumption and achieve powersaving functions.

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