SG6846GLSY Fairchild Semiconductor, SG6846GLSY Datasheet
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SG6846GLSY
Specifications of SG6846GLSY
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SG6846GLSY Summary of contents
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... Printers, Scanners, Motor Drivers Ordering Information Part Operating Number Temperature Range SG6846GLSY -40 to +105°C For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 Description A highly integrated PWM controller, SG6846G provides several features to enhance the performance of flyback converters ...
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... L EMI AC input Filter N VIN SG6846G Block Diagram 0.9V/0.7V VIN 3 V -TH-G DD VDD 7 UVLO 16.5V/10.5V 23. 1.05V © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0 VDD GATE 8 SENSE 6 GND Figure 1. Typical Application Over Power Compensation 1.18-0. Internal BIAS Latch Debounce OCP Delay ...
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... RI Setting Temperature 5 RT Detection 6 SENSE Current Sense 7 VDD Power Supply 8 GATE Driver Output © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 : Fairchild Logo Z: Plant Code X: Year Code Y: Week Code TT: Die Run Code OCP Latch T: Package Type SOP Green Compound ...
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... The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol T Operating Ambient Temperature A © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 Parameter <50°C A Parameter 4 Min ...
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... OCP Threshold Voltage for Current Limit STH1V-1/2 V OCP Threshold Voltage for Current Limit STH3V-1/2 t Delay Time for Over-Current Protection D-OCP t SS-65KHz Period During Startup Time t SS-130KHz © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 Test Condition Min. 15.5 9 – 0.16V DD-ON GATE Open 26kΩ ...
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... OSC-G S Slope for Green-Mode Modulation Threshold Voltage for Zero Duty Cycle FB-ZDC f Frequency Variation vs Frequency Variation vs. Temperature f DT Deviation © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 (Continued) Test Condition Center Frequency R = 26kΩ Jitter Range Center Frequency R = 13kΩ, V ...
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... RI R Operating Range NOR I RI Maximum R Value for Protection MAX I RI Minimum R Value for Protection MIN I Note: 1. The relationship between R © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 (Continued) Test Condition V = 15V 12V GATE = 1nF GATE = 1nF V = 20V DD ( 26kΩ ...
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... Temperature (℃ ) Figure 10. OCP Threshold Voltage for Current Limit ( 1V) vs. Temperature STH1V 1/2 IN © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 11.5 11.0 10.5 10.0 9.5 9 125 ) Figure 7. Turn-off Threshold Voltage (V DD- ...
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... Figure 14. Output Current of RT Pin (I vs. Temperature 0.9 10 0.9 05 0.9 00 0 (℃ ) Figure 16. PWM Turn-on Threshold Voltage (V vs. Temperature © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 (Continued) 8 7.0 8 6.8 8 6.6 8 6.4 8 6 Figure 13. Maximum Duty Cycle (DCY OSC 1 ...
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... open-circuit or short-circuit to ground occurs at the RI pin, the internal protection circuit immediately shuts down the controller. © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 Two-Level Over-Current Protection (OCP) The cycle-by-cycle current limiting shuts down the PWM immediately when the switching current is over the peak-current threshold ...
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... Good placement and layout practices should be followed. Avoid long PCB traces and component leads. Compensation and filter components should be located near the SG6846G. © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 (Continued) Slope compensation 11 Figure 18 ...
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... R19 102KΩ ±1% R14 0Ω22 ±5% R16, R17 1W 20Ω ±5% R11 20KΩ ±5% R12 100KΩ ±5% R20 887KΩ ±1% R22 10KΩ ±1% © 2008 Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 BD1 LF2 CX2 R12 ...
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... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...
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... Fairchild Semiconductor Corporation SG6846G • Rev. 1.0.2 14 www.fairchildsemi.com ...