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...
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...
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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 . |
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.