SG6849-100D ETC2 [List of Unclassifed Manufacturers], SG6849-100D Datasheet
SG6849-100D
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SG6849-100D Summary of contents
Page 1
... MOS from over-voltage damage. The built-in over temperature protection (OTP) function will shutdown the controller at 150°C with a 20°C hysteresis. The SG6849 is designed to provide a low-cost total solution for flyback converters available in a small footprint, 6-pin, SOT-26 package. ...
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... WW: Work Week 8 SG6849-ZZZD XXXXXXXYYWWV 1 ORDERING INFORMATION Part Number PWM Frequency SG6849-65T 65kHz SG6849-100T 100kHz SG6849-65D 65kHz SG6849-100D 100kHz PIN DESCRIPTIONS Pin No. Name Type DIP-8 SOT-26 GATE 1 6 Driver Output The totem-pole output driver to drive the power MOSFET. VDD 2 5 Supply ...
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... DIP-8(SOT-26) © System General Corp. Version 1.0(IRO33.0002.B3) OTP SENSE S Q OSC PWM R Comp Slope Compensation OCP Comp Green Mode Controller - 3 - Product Specification V DD Driver 1( Power Blanking 4(4) SENSE Limiter Circuit 4.5V Σ 7(2) VDD VDDZ www.sg.com.tw SG6849 GATE FB Dec.29, 2003 ...
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... DIP-8 (V =15V, T =25° Test Condition Min. FB Input Current = 0.1mA FB Input Current = 0mA 20 FB Input Current = 0.8mA 18 signal while V V ≧ Product Specification SG6849 Value Unit -0 -0 300 mW 243.3 °C/W 113.0 115 °C/W 67.1 ° ...
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... Propagation Delay Current Limiting Valley Threshold Voltage for 65kHz VTH,VA Current Limiting Valley Threshold Voltage for 100kHz High-Line Sense Voltage Oscillator Section Symbol Parameter F SG6849–65 Frequency OSC F SG6849–100 Frequency OSC F Green-Mode Burst Back Frequency* OSC-G-BK F Green-Mode OFF Frequency* OSC-G-OFF ...
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... V = 15V 1nF 15V 1nF 20V DD Test Condition *1 *2 Test Condition V = 15V 15V DD GATE is Open I = 10mA Product Specification SG6849 Min. Typ. Max. Unit 310 ns 1 200 16 Min. Typ. Max. Unit °C 150 °C 130 Min. ...
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... Maximum Duty Cycle (DCY ) vs. Temperature MAX 80.0 78.0 76.0 74.0 72.0 70.0 -40 -25 - EMPERAT URE ( ℃ ) Valley Threshold Voltage (V ) vs. Temperature TH,VA 0.80 0.78 0.76 0.74 0.72 0.70 -40 -25 - EMPERAT URE ( ℃ ) www.sg.com.tw SG6849 =15. 110 125 V =15. 110 125 V =15. 110 125 Dec.29, 2003 ...
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... TEMPERAT URE ( ℃ ) Green-Mode Burst Back(F ) and Green-Mode OSC-G-BK OFF Frequency(F ) vs. V OSC-G-OFF 30.0 F OSC -G- BK 25.0 20.0 15.0 10.0 5.0 0 Ramp vs. Duty Cycle LIMIT 1.10 1.05 1.00 0.95 0. Duty Cycle (%) www.sg.com.tw SG6849 ) vs. 95 110 125 DD F OSC- G-OFF 9 =15. Dec.29, 2003 ...
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... PWM output once the junction temperature exceeds 150°C. While PWM output is shut down, the V voltage will gradually drop to the UVLO voltage. Some of the SG6849’s internal circuits will be shut down, and V will gradually start increasing again. When V 17V, all the internal circuits, including the temperature sensing circuit, will start operating normally. If the junction temperature is still higher than 150° ...
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... To compensate for this, the threshold voltage is adjusted by adding a positive ramp. This ramp signal can vary from 0.77V to 1.05V for SG6849-65 and 0.70 to 1.03V for SG6849-100, and it flattens out at 1.05V and 1.03V respectively. A smaller threshold voltage forces the output GATE drive to terminate earlier, thus reducing total PWM turn-on time and making the output power equal to that of the low line input ...
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... R10 3,4 CY1 Component 20mH 6*8mm 10uH 6mm MOSFET 1A/600V R 750kΩ 1206 R 47kΩ 1206 R 47Ω 1206 R 4.7Ω 1206 R 100Ω 0805 R 10Ω 1206 R 10Ω 1206 EE-16 IC SG6849 (Green PWM IC) www.sg.com.tw Dec.29, 2003 SG6849 VO GND ...
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... 3,4 R11 U2 1 R14 2 C10 U3 CY1 1 Component 10uH 6mm MOSFET 1A/600V 750k 1206 47k/1206 47 1206 3.7 1206 100 0805 10 1206 5 1206 100 1/8W 33k 0805 33k 1/8W 4.7k 0805 EE-16 SG6849 (Green PWM IC) PC817 TL431 10uH 6mm www.sg.com.tw SG6849 Vo C9 GND R13 R12 Dec.29, 2003 ...
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... Product Specification Detail θ L1 Detail A Typ. Max. 0.057 0.006 0.045 0.051 0.020 0.009 0.114 0.110 0.063 0.037 0.075 0.018 0.24 0.024 0.010 0.25 4˚ 8˚ 10˚ 15˚ www.sg.com.tw SG6849 Dec.29, 2003 ...
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... Product Specification SG6849 Θ Typ. Max. 0.210 0.130 0.135 0.060 0.018 0.365 0.400 0.300 0.250 0.255 0.100 0.130 0.150 0.355 0.375 7 15 www ...
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... RIGHT TO MAKE CHANGES System General reserves the right to change this document and/or this product without notice. Customers are advised to consult their System General sales representative before ordering. © System General Corp. Version 1.0(IRO33.0002.B3) DISCLAIMERS - 15 - Product Specification SG6849 www.sg.com.tw Dec.29, 2003 ...