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SG6841

Features: Green-mode PWM to support Blue Angel NormLow start up current 30uALow operation current 3mALeading-edge blankingBuilt-in synchronized slope compensationConstant output power limit for universal AC inputCurrent mode operationCycle-by-cycle current limitingUnder voltage lockout (UVLO)Pro...

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SG6841: Features: Green-mode PWM to support Blue Angel NormLow start up current 30uALow operation current 3mALeading-edge blankingBuilt-in synchronized slope compensationConstant output power limit for un...

SG6841 Data Sheet

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Part Number:
SG6841
Supply Ability:
5000

Price Break

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

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Upload time: 2024/4/28

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Product Details

Description



Features:

Green-mode PWM to support "Blue Angel" Norm
Low start up current 30uA
Low operation current 3mA
Leading-edge blanking
Built-in synchronized slope compensation
Constant output power limit for universal AC input
Current mode operation
Cycle-by-cycle current limiting
Under voltage lockout (UVLO)
Programmable PWM frequency
GATE output maximum voltage clamped at 18V
Totem pole output includes soft driving for better EMI
Build-in limited-power-control to meet safety requirement
Programmable over-temperature protection
Few external components & low cost solution




Application

General-purpose switching mode power supplies
and flyback power converters, and
Power Adapter
Open-frame SMPS
Battery Charger Adapter




Pinout

Connection Diagram




Specifications

Parameter
Unit
Value
Unit
DC Supply Voltage note 1
VDD
30
32
10
V V
mA
Gate Output Current
VFB
500
V
Input Voltage to FB Pin
VSense
-0.3 to 7 V
V
Input Voltage to Sense Pin
Pd
-0.3 to 7V
mW
Input Voltage to RT Pin
TJ
-0.3 to 7V
Operating Junction Temperature
RJA
-0.3 to 7V
°C/W
82.5
.C
Operating Ambient Temperature
Tstg
-25 to 85
°C
Storage Temperature Range
TL
-25 to 85
°C
ESD Capability, HBM model
3.0
kV
ESD Capability, Machine model
250
V




Product Product status Eco Status Pricing* Package type Leads Packing method Package Drawing Package Marking Convention**
SG6841DZ Full Production RoHS Compliant $0.466 DIP 8 RAIL Line 1: SG6841DZ Line 2: K&60&4&Z
SG6841DZ3 Not recommended for new designs RoHS Compliant N/A DIP 8 RAIL Line 1: SG6841DZ3 Line 2: B&60&4&Z
SG6841SZ Not recommended for new designs RoHS Compliant N/A SOIC 8 TAPE REEL Line 1: SG6841SZ Line 2: K&60&4&Z
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product SG6841 is available. Click here for more information .





Description

This highly integrated PWM controllers, SG6841 series, provides several features to enhance the performance of
low power flyback converters. 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 of SG6841 assists the power supply to easily meet the power conservation requirement. Due to BiCMOS process, the start-up current and operation current is reduced to 30uA and 3mA, respectively, to improve power conversion efficiency. Large start-up resistance can be used for further power saving. Built-in synchronized slope compensation ensures the stability of peak current mode control. A proprietary internal compensation of SG6841 ensures constant output power limit for universal AC input voltage from 90VAC to 264VAC.






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