FAN7311 Fairchild Semiconductor, FAN7311 Datasheet
FAN7311
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FAN7311 Summary of contents
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... Protected by U.S. Patent: 5,652,479; 7,158,390. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 Description The FAN7311 provides all the control functions for a series parallel resonant converter as well as a pulse width modulation (PWM) controller to develop a supply voltage. Typical operating frequency range is between 30kHz and 250kHz, depending on the cold cathode fluo- rescent lamp (CCFL) and the transformer's characteris- tics ...
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... Output - Control + Logic + OLP S_S UVLO + Error Amp. - 2.5V S 105μA olr olr 85μA burst Voltage +α a Reference & Internal Bias S burst UVLO Figure 1. Functional Block Diagram of FAN7311 2 Output Driver Output Driver 1.4μ +α SET Q S OLP - V OLP UVLO Q R 2.5V 1.5V CLR + - 2V 2.5V REF + 1.4V ...
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... GND Analog Ground 6 REF 2.5V Reference Voltage 7 ADIM Analog Dimming Input 8 BDIM Burst Dimming Input 9 EA_IN Error Amplifier Input 10 EA_OUT Error Amplifier Output © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 V PGND OUTC OUTD FAN7311 ENA S_S GND REF ADIM Figure 2 ...
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... STG θ Thermal Resistance Junction-to-Ambient (still air Power Dissipation D Notes: 1. Thermal resistance test board size: 76.2 • 114.3 • 1.6mm (1S0P). JEDEC standard: JESD51-2, JESD51-3. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 Characteristics 20-SSOP (1) 20-SOIC 20-SSOP 20-SOIC 4 Min. Max. Unit 5 ...
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... Operating Supply Current op I Stand-by Current sb Note: 3. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 =12V. For minimum and maximum values ≤ 25.5V, unless otherwise specified. Specifications from -25°C to 85°C IN Test Condition 5 ≤ V ≤ 25.5V ...
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... DELAY TIME (4) PDR_A/NDR_B (4) PDR_C/NDR_D Note: 4. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 (Continued) =12V. For min. and max. values ≤ 25.5V, unless otherwise specified. Specifications from -25°C to 85°C are guar- IN Test Condition V ...
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... © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 value. The UVLO cir- IN exceeds 5V. IN Burst Oscillator & Burst Dimming: The timing capaci- tors (BCTs) are charged by the reference current source, which is formed by the timing resistor (RT). The timing resistor’ ...
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... Once it reaches 2.5V, the IC shuts down and all output is high. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 Figure 7. OLR Voltage During Striking Mode Output Drives: The four output drives are designed so that switches A and B, C and D never turn on simulta- neously ...
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... Timing Diagram The FAN7311 uses the improved phase-shift control full-bridge to drive CCFL result, the temperature difference between the left and the right leg is almost zero. The detail timing is shown below. EA_OUT CT SYNC T T1 POUT A NOUT B POUT C NOUT D © 2006 Fairchild Semiconductor Corporation FAN7311 Rev ...
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... OLP4 D3 D8 OLR BAV70 BAV99 R12 C29 R11 C15 R18 1kΩ 10nF 1kΩ 10nF 1kΩ FAN7311 Rev. 04 FAN7311 Rev. 04 Leakage Inductance Remarks 21.5µH 1KHz, 1V 280mH 1KHz HOT CN1 CCFL 2 COLD D7 BAV99 R17 1kΩ HOT CN3 CCFL ...
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... C4 4.7nF Electrolytic capacitor C22 220µF MOSFET (SMD) M1 FDS8958A M2 FDS8958A Transformer (SMD) TX1 EFD2124 TX2 EFD2124 © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 Description / Vendor Part Ref. C5 Fuse C6 C7 1608 J C8 1608 F C9 1608 F C10 1608 F C11 1608 F C12 1608 F ...
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... Package specifications do not expand the terms of Fair- child’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/ © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 12 www.fairchildsemi.com ...
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... Package specifications do not expand the terms of Fair- child’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/ © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 (Continued) 13.00 12. ...
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... Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/ © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 (Continued) 24.892-26.924 PIN #1 6 ...
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... Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 15 www.fairchildsemi.com ...