tb6818fg TOSHIBA Semiconductor CORPORATION, tb6818fg Datasheet
tb6818fg
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tb6818fg Summary of contents
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... Note：Carefully handle this IC by using an earth band, a conductive sheet ionizer to reduce ESD. Pay attention to temperature and humidity to protect the IC from ESD. Note：Do not insert devices in the wrong orientation to prevent from destroying the IC. The TB6818FG is RoHS compatible With regard to solderability, the following conditions have been confirmed • Solderability (1) Use of Sn-37Pb solder bath · ...
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... IN OPP & Pin for setting soft start time in IC startup. Assign the resistance and the capacitor in parallel and １６ SOFT connect them to the GND. START Fig. 1 Block Diagram Descriptions 2 TB6818FG Remarks － － － － － － － － － ...
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... ISENSE ISENSE OCL IN IN OUT FREQ. FREQ. STB VFB FB IN SET(R) SET(C) ２ ３ ４ ５ ６ OSC OSC Fig. 3 Application Circuit (Self Vcc supply) 3 TB6818FG １０ ９ VCC PULSE OUT Vref P-GND ７ ８ 2010-07-07 PFC OUT GND ...
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... ISENSE IN １３ 5.0 SENSE GND １４ (*4) VSENSE IN １５ OPP & SOFT START ― １６ ２５ ８５ °C ] Relationship between temperature drop and power consumption 4 TB6818FG Rating Unit V 28 1190 °C °C 150 °C Rating Unit ...
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... Condition: Resistance load (150 Ω) is connected between pin 10 (PULSE OUT). Vstb ＝ 1.0 V → 4.0 V (Standby mode) Rosc ＝ 12 kΩ Cosc ＝ 470 pF Pin No. Min. No. 10 pin 8.4 Symbol I Load Off I On Rosc＝12 kΩ Cosc＝470 pF I STB fosc：Oscillation stop mode 5 TB6818FG Typ. Max. Unit V － 26.0 ) Min. Typ. Max. 3.3 5.0 7.2 80 ...
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... Drive OFF Drive O N Ｖ OVP-2 Drive OFF Ｖ OCL Ｖ Feedback loop open detection FOD Shut down voltage Ｖ UVLO Starting voltage ＴＳＤ 6 TB6818FG Min. Typ. Max. Unit 30 μＡ － － 20 － － ｍs 20 kHz － － ...
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... FB IN terminal (6 Pin feedback terminal for PFC output voltage (Input terminal of error amplifier). PFC output is input divided by the resistance. Reference voltage of error amplifier is set 1.25 V (typ.). This terminal has other functions as follows × (kHz) Cosc・Rosc 7 TB6818FG Cosc : (pF) Rosc：(kΩ) 2010-07-07 ...
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... Is (A) ) which starts the OCL operation can be found as follows. (OCL) R × 100 （ｋΩ） （μA） OCL R sense （Ω） TB6818FG AC入力 R ISENSE ← Is 1000pF R OCL OCL GND 11 7 100μA （A） ...
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... IC. The current of the reference supply is also supplied to the error amplifier (trans-conductor amplifier) and the current waveform detecting amplifier (trans-conductor amplifier each amplifier can be found as follows calculated from the following theoretical formula 23.16 10 × (μS) Rosc (k ) Ω 9 TB6818FG 2010-07-07 ...
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... DELAY pin SOFT START Operation stops because DELAY time is finished. 0.60 V Recognize as AC instaneous-stop. 1.25 V DELAY circuit starts operation after AC stop. 10 TB6818FG UVLO (L) Voltage (L):8.0 V Switching starts in synchronism with the AC rise. Rising waveform is used as soft start. Risen up to 4.75 V 0.65 V Recognize as AC recovary ⇒ Restart. 2010-07-07 ...
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... In case operation recovers before the voltage of DELAY pin reaches 1. dose not have any drive stop time. DELAY circuit starts operation after AC stop. 11 TB6818FG UVLO voltage (L)：8.0 V Switching starts in synchronism with the AC rise. Rising waveform is used as soft start. In case it restarts when voltage pin is 0.625 V or more, it restarts without soft start ...
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... Operation sequence （５）Recovery from AC instantaneous-stop -3 (When Vcc is supplied from secondary side of PFC transformer) （６）Recovery from AC instantaneous-stop -4 12 TB6818FG 2010-07-07 ...
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... Operation sequence （７）Recovery from thermal shutdown -1 （８）Recovery from thermal shutdown -2 13 TB6818FG 2010-07-07 ...
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... Timing of the voltage recovery and that of restart has a difference to wait for the AC rise. Stop In case it restarts when voltage pin is 0.625 V or more, it restarts without soft start. No change of voltage of OPP pin because of AC voltage operates nornaly. No operation of DELAY circuit. 14 TB6818FG 2010-07-07 ...
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... Operation sequence （１１）Recover from OVP-2 operation （１２）FOD operation 15 TB6818FG 2010-07-07 ...
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... Identification Indication ＴＢ ＊＊＊＋＋ ６８１８ＦＧ ● Weekly code ( Note 1) Lot trace code ( Note 1) Product type (TB6818FG) (Note 1) 5 characters For example : ９３５ Ａ２ 2009 35th Week 16 TB6818FG Unit : mm ...
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... Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product. Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances, including without limitation, the EU RoHS Directive. TOSHIBA assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 17 TB6818FG 2010-07-07 ...