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SG6848

Features: Green-Mode PWM Supports the Blue Angel Standard Low Start-up Current (5uA) Low Operating Current (2mA) Leading-Edge Blanking Constant Output Power Limit Universal Input Built-in Synchronized Slope Compensation Current Mode Operation Cycle-by-cycle Current Limiting Under Voltage Lockou...

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SeekIC No. : 004489196 Detail

SG6848: Features: Green-Mode PWM Supports the Blue Angel Standard Low Start-up Current (5uA) Low Operating Current (2mA) Leading-Edge Blanking Constant Output Power Limit Universal Input Built-in Synchro...

SG6848 Data Sheet

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Part Number:
SG6848
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/17

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Product Details

Description



Features:

  Green-Mode PWM
  Supports the "Blue Angel" Standard
  Low Start-up Current (5uA)
  Low Operating Current (2mA)
  Leading-Edge Blanking
  Constant Output Power Limit
  Universal Input
  Built-in Synchronized Slope Compensation
  Current Mode Operation
  Cycle-by-cycle Current Limiting
  Under Voltage Lockout (UVLO)
  Programmable PWM Frequency
  Gate Output Voltage Clamped at 15V
  Low Cost
  Few External Components Required
  Small SOT-26 Package


Application

General-purpose switching mode power supplies and
flyback power converters, such as
 Battery chargers for cellular phones, cordless phones, PDAs, digital cameras, and power tools
Power adapters for ink jet printers, video game consoles, and portable audio players
  Open-frame SMPS for TV/DVD standby and other auxiliary supplies, home appliances, and consumer electronics
Replacements for linear transformers and RCCSMPS
  PC 5V standby power.


Pinout

Connection Diagram


Specifications

Parameter
Unit
Value
Unit
DC Supply Voltage *
Zener Clamp
Zener Current
VDD
25
26
10
V V
mA
Input Voltage to FB Pin
VFB
-0.3 to 6 V
V
Input Voltage to Sense Pin
VSense
-0.3 to 6V
V
Power Dissipation
Pd
300
mW
Operating Junction Temperature
TJ
150
Thermal Resistance (Junction to Air)
 SOT-26
RJA
208.4
°C/W
DIP-8
82.5
mw
Storage Temperature Range
Tstg
-55 to +150
°C
Lead Temperature (Soldering)
 20 sec SOT-26
TL
220
260
°C
10 sec DIP-8



Description

The SG6848 provides several special enhancements designed to meet the lowstandby-power needs of low-power SMPS. To minimize standby power consumption, the proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load conditions. This green-mode function enables the power supply to easily meet even the strictest power conservation requirements.

The BiCMOS fabrication process of SG6848 enables reducing the start-up current to 5uA, and the operating current to 2mA. To further improve power conservation, a large start-up resistance can be used. Built-in synchronized slope compensation ensures the stability of peak current mode control. Proprietary internal compensation provides a constant output power limit over a universal AC input range (90VAC to 264VAC). Pulse-by-pulse current limiting ensures safe operation even during short-circuits.




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