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RS2051 Datasheet (PDF) - Orister Corporation

RS2051 Datasheet PDF - Orister Corporation
No. de pieza RS2051
Descarga  RS2051 Descarga

Tamaño del archivo   525.27 Kbytes
Page   13 Pages
Fabricante Electrónico  ORISTER [Orister Corporation]
Página de inicio  http://www.orister.com
Logo ORISTER - Orister Corporation
Descripción Electrónicos Novel Low Cost Green-Mode PWM Controller with Soft Start & Mode

RS2051 Datasheet (PDF)

Go To PDF Page Descarga Datasheet
RS2051 Datasheet PDF - Orister Corporation

No. de pieza RS2051
Descarga  RS2051 Click to download

Tamaño del archivo   525.27 Kbytes
Page   13 Pages
Fabricante Electrónico  ORISTER [Orister Corporation]
Página de inicio  http://www.orister.com
Logo ORISTER - Orister Corporation
Descripción Electrónicos Novel Low Cost Green-Mode PWM Controller with Soft Start & Mode

RS2051 Datasheet (HTML) - Orister Corporation

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RS2051 Detalles de producto

Description
The RS2051 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 power-saving functions. With a very low start-up current, the RS2051 could use a large value start-up resistor (2Mohms). Built-in synchronized slope compensation enhances the stability of the system and avoids sub-harmonic oscillation. Dynamic peak current limiting circuit minimizes output power change caused by delay time of the system over a universal AC input range.

Features
● Low Cost, PWM&PFM&CRM (Cycle Reset Mode)
● Low Start-up Current (about 1.5μA)
● Low Operating Current (about 2.2mA)
● Current Mode Operation
● Under Voltage Lockout (UVLO)
● Built-in Synchronized Slope Compensation
● Built-in fixed soft start with 1.2mS
● Built-in Frequency jitter for better EMI Signature
● Programmable PWM Frequency
● Audio Noise Free Operation
● Leading edge Blanking on Sense input
● Constant output power limiting for universal AC input Range
● SOT-23-6L、 SOP8 and DIP-8 Pb-Free Packaging Compatible with SG6848 (6849) / SG5701 / SG5848 / LD7535 (7550) / OB2262 (2263) / OB2278( 2279)
● Soft Clamped GATE output voltage 16.5V
● VDD over voltage protect 25.6V
● Cycle-by-cycle current limiting
● Sense Fault Protect ion
● OTP (Over Temperature Protection)
● Output SCP (Short circuit Protection)
● Output OLP (Over Load Protection)
● Latch mode After OLP&SCP
● High-Voltage CMOS Process with ESD

Applications
● Switching AC/DC Adaptor
● Battery Charger
● Open Frame Switching Power Supply
● Standby Power Supplies
● Set-Top Box Power Supplies
● 384X Replacement



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