Product Summary

The SG5841DZ is a PWM controller which provides several features to enhance the performance of flyback converters. It provides many protection functions. In addition to cycle-by-cycle current limiting, the internal open-loop protection circuit ensures safety should an open-loop or output-short-circuit failure occur. The device is available in an 8-pin DIP or SOP package. The applications of the SG5841DZ include: Power Adapters, Open-Frame SMPS.

Parametrics

SG5841DZ absolute maximum ratings: (1)VVDD Supply Voltage: 30 V; (2)VVIN Input Terminal: 30 V; (3)VFB Input Voltage to FB Pin: -0.3 to 7.0 V; (4)VSENSE Input Voltage to SENSE Pin: -0.3 to 7.0 V; (5)VRT Input Voltage to RT Pin: -0.3 to 7.0 V; (6)VRI Input Voltage to RI Pin: -0.3 to 7.0 V; (7)TJ Operating Junction Temperature: -40 to +125 ℃; (8)TSTG Storage Temperature Range: -55 to +150 ℃; (9)TL Lead Temperature (Wave Soldering or Infrared, 10 Seconds): 260 ℃.

Features

SG5841DZ features: (1)Green-Mode PWM Controller; (2)Low Start-Up Current (14μA); (3)Low Operating Current (4mA); (4)Programmable PWM Frequency with Hopping; (5)Peak-Current-Mode Control; (6)Cycle-by-Cycle Current Limiting; (7)Synchronized Slope Compensation; (8)Leading-Edge Blanking; (9)Constant Output Power Limit; (10)Totem Pole Output with Soft Driving; (11)VDD Over-Voltage Clamping.

Diagrams

SG5841DZ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SG5841DZ
SG5841DZ

Fairchild Semiconductor

Switching Converters, Regulators & Controllers Highly-Integrated Grn Mode PWM Cntrl

Data Sheet

0-2550: $0.27
2550-5000: $0.26
5000-10000: $0.25
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
SG5841
SG5841

Other


Data Sheet

Negotiable 
SG5841CSZ
SG5841CSZ

Fairchild Semiconductor

Current Mode PWM Controllers Green-Mode PWM Controller

Data Sheet

0-1800: $0.27
1800-2500: $0.27
2500-5000: $0.26
5000-10000: $0.25
SG5841DY
SG5841DY

Fairchild Semiconductor

Voltage Mode PWM Controllers HI-INTEGRD GRN-MODE PWM CONTROLLER

Data Sheet

Negotiable 
SG5841DZ
SG5841DZ

Fairchild Semiconductor

Switching Converters, Regulators & Controllers Highly-Integrated Grn Mode PWM Cntrl

Data Sheet

0-2550: $0.27
2550-5000: $0.26
5000-10000: $0.25
SG5841J
SG5841J

Other


Data Sheet

Negotiable 
SG5841JDY
SG5841JDY

Fairchild Semiconductor

Voltage Mode PWM Controllers HI-INTEGRD GRN-MODE PWM CONTROL W/JITTER

Data Sheet

Negotiable