SG6859A Fairchild Semiconductor, SG6859A Datasheet
SG6859A
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SG6859A Summary of contents
Page 1
... To protect the external power MOSFET from damage by supply over voltage, the SG6859A’s output driver is clamped at 17V. SG6859A controllers can be used to improve the performance and reduce the production cost of power supplies. The best choice for replacing linear and RCC-mode power adapters, the SG6859A is available in 8-pin DIP and 6-pin SSOT-6 packages ...
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... Part Number SG6859ATZ SG6859ATY SG6859ADZ SG6859ADY (Preliminary) Application Diagram Internal Block Diagram © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 Operating Temperature Range -40 to +105°C -40 to +105°C -40 to +105°C -40 to +105°C Figure 1. Typical Application Figure 2. Functional Block Diagram ...
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... Marking Information *Marking for SG6859ATZ (Pb-free) *Marking for SG6859ATY (Green Compound) *Marking for SG6859ADZ (Pb-free) *Marking for SG6859ADY (Green Compound) © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 AAJF: SG6859A W: Week Code A~Z=W1~W26 AAJFW A~Z=W27~W52 : Lead Free Package XXXX: AAJF=SG6859A T : Die Run Code ...
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... GND © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 Description The totem-pole output driver for driving the power MOSFET. Power supply No connection Current sense. This pin senses the voltage across a resistor. When the voltage reaches the internal threshold, PWM output is disabled. This activates over-current protection ...
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... Electrostatic Discharge Capability, Machine Model, JESD22-A115 Notes: 1. All voltage values, except differential voltages, are given with respect to GND pin. 2. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 Parameter ( Min. Max ...
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... MAX V Output Voltage Low GATE-L V Output Voltage High GATE-H t Rising Time r t Falling Time f V Output Clamp Voltage GATE-CLAMP © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 =25°C. A Conditions DD-ON V =15V Auto Restart Auto Restart R =95kΩ I Center Frequency R =95kΩ ...
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... Figure 6. Turn-on Threshold Voltage (V vs. Temperature 3.0 2.5 2.0 1.5 1.0 0.5 -40 -25 - Temperature (℃) Figure 8. Startup Current (I 70.0 69.0 68.0 67.0 66.0 65.0 -40 -25 - Temperature (℃) Figure 10. Center Frequency (f © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 13.0 12.0 11.0 10.0 9.0 8 110 125 -40 ) Figure 7. Turn-off Threshold Voltage (V DD-ON 3.5 3.3 3.1 2.9 2.7 2 110 125 -40 ) vs. Temperature Figure 9 ...
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... Temperature (℃) Figure 12. Green-Mode Entry FB Voltage (V vs. Temperature 350.0 330.0 310.0 290.0 270.0 250.0 -40 -25 - Temperature (℃) Figure 14. Leading-Edge Blanking Time (t vs. Temperature © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 3.0 2.8 2.6 2.4 2.2 2 110 125 -40 ) Figure 13. Green-Mode Ending FB Voltage (V FB-N 3.5 3.0 2 ...
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... Good placement and layout practices should be followed. Avoiding long PCB traces and component leads, locating compensation and filter components near the SG6859A, and increasing power MOS gate resistance improve performance. 9 delay, t ...
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... EC 470μF/10V 105° 220μF/10V 105°C C10 CC 2.2nF 0805 C11 N.C. D1 Diode FRI07 D2 Diode FR102 D4 Diode SB360 D5 (Optional) ZD 6.8V 0. 1Ω/0.5W L1 20mH 6•8mm © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0 ...
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... 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’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 9.83 9.00 6.67 6.096 3 ...
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... 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’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2007 Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 Figure 18. 6-Pin, SSOT-6 Package 12 www.fairchildsemi.com ...
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... Fairchild Semiconductor Corporation SG6859A • Rev. 1.0.4 13 www.fairchildsemi.com ...