SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP １ Scope The present specifications shall apply to switching power supply IC SFA0002-VF-RP. ２ Outline Type Semiconductor IC (Monolithic IC) Structure Plastic package (Transfer mold) Features Built-in current limit protection, thermal shutdown protection. Built-in error-amp helps eliminate components at sensing stage such as shunt regulator. ３ Absolute maximum ratings ３－１ Absolute maximum ratings (Ta=25°C) Parameter Symbol Ratings Unit VOCP -5～+5 V SS terminal voltage VSS -0.3～+9 V FB terminal voltage VFB -0.3～+5 V Input voltage for control part VCC 0～36 V Phase compensation terminal voltage VCOMP -0.3～+5 V Frequency setting terminal voltage VFREQ -0.3～+5 V IDRV(peak) -540mA～+270mA mA IDRV(DC) -180mA～+90mA mA Power dissipation PD 1.2 (※１） W Junction temperature Tj -40～150 ℃ Storage temperature Tstg -40～150 ℃ OCP terminal voltage Drive terminal peak current Drive terminal DC current （※1）Mounted on glass epoxy board (The dimension of PCB : 42mm×32mm×1mmt) ３－２ Recommended operating conditions Parameter Input voltage for control part Switching frequency 130529 Symbol Ratings Unit VCC 6～24 V FOSC 20～200 ｋHz SSJ-04244 1／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP ４ Electrical characteristic ４-１Electrical characteristics (VCC=14V, Ta=-40～125°C) (*1) Parameter Symbol MIN Ratings TYP MAX Conditions Unit Power supply Start-up Operation Operation start voltage VCC(ON) 4.9 5.1 5.3 V Operation stop voltage VCC(OFF) 4.4 4.6 4.8 V Circuit current in operation ICC(ON) 1 2 3.2 mA Circuit current in non-operation ICC(OFF) 0.3 0.5 1 mA SS terminal high threshold voltage VHSS 1.9 2 2.1 V SS terminal low threshold voltage VLSS 0.9 1 1.1 V SS terminal voltage hysteresis width Δ VSS 0.9 1 1.1 V SS terminal outflow current Isrc(SS) 11 15 19 uA SS terminal inflow current Isnk(SS) 13 17 21 uA Switching frequency fosc(200p) 85 100 115 kHz FREQ terminal outflow current Isrc(FREQ) 27 30 33 uA FREQ terminal inflow current Isnk(FREQ) 75 85 95 uA Oscillation circuit high threshold voltage VHF 1.9 2 2.1 V Oscillation circuit low threshold voltage VLF 0.9 1 1.1 V Maximum on-duty width Dmax 70 74 78 % Slope compensation rate SLP 2.1 2.5 2.9 mV/% Feedback voltage VFB 2.45 2.5 2.55 V Burst threshold voltage Vburst - 0.18 - V Drive voltage Vdrive 7.6 8.3 9 V Vdrive(min) 4 Ton(min) - FB=0V、SS=0V、OCP=0V、FREQ=200pF VCC=0V→14V FB=0V、SS=0V、OCP=0V、FREQ=200pF VCC=14V→0V FB=0V、SS=0V、OCP=0V、FREQ=200pF、 VCC=14V FB=0V、SS=0V、OCP=0V、FREQ=200pF、 VCC=4.8V Normal Operation Minimam drive voltage Minimum on-time V 170 - ns FB=0V、OCP=0V、FREQ=0V、VCC=14V、 SS=0V→2.5V FB=0V、OCP=0V、FREQ=0V、VCC=14V、 SS=2.5V→0V VHSS-VLSS FB=0V、OCP=0V、FREQ=0V、VCC=14V、 SS=0.9V FB=0V、OCP=0V、FREQ=0V、VCC=14V、 SS=2.1V FB=0V、SS=0V、OCP=0V、FREQ=200pF、 VCC=14V FB=0V、OCP=0V、SS=0V、VCC=14V、 FREQ=0.9V FB=0V、OCP=0V、SS=0V、VCC=14V、 FREQ=2.1V FB=0V、OCP=0V、SS=0V、VCC=14V、 FREQ=0V→2.5V FB=0V、OCP=0V、SS=0V、VCC=14V、 FREQ=2.5V→0V FB=0V、SS=0V、OCP=0V、FREQ=200pF、 VCC=14V FB=0V、COMP=1.3V、SS=2.5V、 FREQ=200pF、VCC=14V、OCP=0V→1V SS=0V、OCP=0V、FREQ=0V、VCC=14V FB=0V→2.5V SS=2.5V、FREQ=200pF、VCC=14V、 OCP=0V、COMP=0V→1V FB=0V、OCP=0V、SS=0V、VCC=14V FREQ＝3V・１pluse FB=0V、OCP=0V、SS=0V、VCC≧6V FREQ＝3V・１pluse FB=0V、SS=0V、OCP=1V、Drv=680pF、 VCC=14V Protection Operation *1 The ratings at Ta=-40°C to 125°C shall be treated as a design value. The ratings of devices shall be checked at -30°C, 25°C, 125°C at Outgoing Inspection. *2 The rating of devices shall be treated as a design value. 130529 SSJ-04244 2／13 61426-01 SANKEN ELECTRIC CO., LTD. ４-２ SFA0002-VF-RP Typical characteristics (Ta=25°C) fosc(200p)[kHz] fosc[kHz] 1000 100 10 10 100 1000 10000 115 112 109 106 103 100 97 94 91 88 85 -50 0 9 8 7 6 5 4 3 2 1 0 0 5 10 15 20 25 VCC[V] ICC[mA] 50 100 150 100 150 Ta[℃ ] VFB[V] Vdrive[V] CFREQ[pF] 2.55 2.54 2.53 2.52 2.51 2.5 2.49 2.48 2.47 2.46 2.45 -50 0 50 Ta[℃ ] 4 3.5 3 2.5 2 1.5 1 0.5 0 0 5 10 15 20 25 VCC[V] ５ Block diagram 130529 SSJ-04244 3／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP ６ Standard connection ※Since the switching noise caused by Q1 may affect the operation of an IC ,appropriate design for peripheral circuits is required to prevent the malfunction of an IC by adding snubber circuit and /or filter circuit. ７ Pins function description 130529 Terminal No symbols Descripton 1 VCC Power supply terminal 2 FB Feedback terminal 3 GND Ground terminal 4 SS Soft start terminal 5 FREQ Frequency setting terminal 6 COMP Phase compensation terminal 7 Drive Gate drive terminal 8 OCP Over current protection terminal SSJ-04244 4／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP ８ Timing diagram ８－１ Timing diagram in standard connection Startup transient operation Start Steady operation Softstart Stop at light load Stop Shift to intermittent operation when COMP terminal is below Vburst *Intermittent operation (on width, period, etc.) depends on application circuit. ８－２ Timing diagram in protection Protected by OCP Overcurrent state 130529 Released from OLP operation Stop Dvr terminal operation by external input to SS terminal SSJ-04244 5／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP ９ Package information ９-１Package type, physical dimensions and material ※1：Type Number ※2：Logo Mark ※3：Lot Number 1st letter：The Last digit of year 2nd leatter：Month (1 to 9 Jan. to Sept.,O for Oct. N for Nov. D for Dec.) 3rd & 4th letter：day 01 to 31 Arabic Numeral ※4：Administer number SFA0002 ※1 SK ※2 ※3 ※4 Dimensions in mm Lead is solder-plated (except cutting surface of lead) Zoom of A part Terminal No symbols Descripton 1 VCC Power supply terminal 2 FB Feedback terminal 3 GND Ground terminal 4 SS Soft start terminal 5 FREQ Frequency setting terminal 6 COMP Phase compensation terminal 7 Drive Gate drive terminal 8 OCP Over current protection terminal ９-２ Appearance The body shall be clean and shall not bear any stain, rust or flaw. ９-３ Marking The type number and lot number shall be legitimately marked in order not to be erased easily. 130529 SSJ-04244 6／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP The example of the solder pattern L L b2 I2 e1 e1 β1 e b e e L β2 α e e e 記号 寸法(mm) Symbol Dimensions(mm) e1 5.72 e 1.27 or more α 0.2以上 β1 0.2～0.5 β2 0.2 L 0.6 b 0.42 b2 0.76 L+β1+β2 I2 There are reference value that are according with the EIAJ standards. (ED-7402-1) 130529 SSJ-04244 7／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP SOP8 Taping specifications for packing 1. General Description This specification specifies packaging spec. for Sanken electric co., SFA0002-VF-RP as well as its related matters. Shipping is only taping as to SOP8. 2. Part name indication This followings specifies part name for taping spec. 2.1 Part name indication method “Part name” - VF 2.2 IC direction in carrier tape pocket SFA0002-VF-RP is [VF type]. End of “Part name” is [- VB]: 1 pin of IC is facing to tape roll-in direction. End of “Part name” is [- VF]: 1 pin of IC is facing to tape pull-out direction. 3. Embossed taping specifications 3.1 Taping type and physical dimensions This carrier tape is treated antistatic treatment. 1Pin Pull-Out direction Material：Emboss 130529 SSJ-04244 8／13 61426-01 SANKEN ELECTRIC CO., LTD. 3.2 SFA0002-VF-RP Reeling type and physical dimensions This reel is made of plastic with antistatic treatment. A label shall be put on a side of flange. quantity, and lot number. A label has part number including a direction for unreeling, Note Reel Material：Plastic Label content NAME LOT No. AMOUNT SANKEN ELECTRIC CO.,LTD 130529 P・C・Ｓ SSJ-04244 9／13 61426-01 SANKEN ELECTRIC CO., LTD. 3.3 SFA0002-VF-RP Reeling specifications (Leader/Trail) Adhesive tape Cover tape section Empty carrier tape Trail Leader Leader 3.4 Leader Cover tape section Empty carrier tape Leader Section MIN 100mm MIN 320mm MIN 420mm Trail Empty carrier tape MIN 80mm Strength of taping seal Detachment Strength of cover tape 0.1～1.0N Tear away angle: 165～180° Detachment speed: 300±10mm／min Cover tape Tape feed direction 3.5 130529 Carrier tape Missed parts on tape The number of missed parts cannot exceed 0.1% of total parts on the tape. parts must not happen. Also, missing of sequential SSJ-04244 10／13 61426-01 SANKEN ELECTRIC CO., LTD. 4. Packaging 4.1 The number of parts per a reel: 3000 parts (MAX) 4.2 Indication of part name and quantity A label shows part number, quantity, and lot number. 4.3 5. SFA0002-VF-RP Outer packaging of reel Reel is put into moisture barrier bag and seal with desiccant and put into outer box. Packing Dimensions and Appearance (A box is made of card boards. The following dimensions are reference value.) 345 336 Dimensions of a box: H336mm x V345mm x T 40mm 233 357 Size of a box contains 5 small boxes: 357mm x 357x 233mm 130529 SSJ-04244 11／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP 6. Dry Pack Moisture Barrier Bag Humidity Indicator Card Reel Desiccant 7. Dry pack handling This product is compliant with Moisture Sensitivity Level 3 (Conform to IPC/JEDEC J-STD-033). This product should be handled as described below. 7.1 Calculated Shelf life in sealed bag: 12 months at <40°C and <90% relative humidity (RH) 7.2 After opening the bag, the infrared reflow, vapor-phase reflow, or equivalent processing ( package body peak temp, 260°C) is possible under the conditions as follows: a) Mounted within 168 hours under the condition of <30°C / 60% RH, or b) Stored at <10% RH 7.3 Baking is required if a) the humidity indicator indicates >10% at 23°C±5°C and b) the storage environment is different from that of 7.2-a) and b) described above 7.4 The product should be taken out of the reel and emboss tape, and 48-hour baking at 125±5°C is required. It is recommended to do baking one time immediately before use. The solderability should be checked when the baking is done two times or more. 130529 SSJ-04244 12／13 61426-01 SANKEN ELECTRIC CO., LTD. SFA0002-VF-RP CAUTION/ WARNING 130529 Application and operation examples described in this document are quoted for the sole purpose of reference for the use of the products herein and Sanken can assume no responsibility for any infringement of industrial property rights, intellectual property rights or any other rights of Sanken or any third party which may result from its use. Although Sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of semiconductor products at a certain rate is inevitable. Users of Sanken products are requested to take, at their own risk, preventative measures including safety design of the equipment or systems against any possible injury, death, fires or damages to the society due to device failure or malfunction. Sanken products listed in this document are designed and intended for the use as components in general purpose electronic equipment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). Please return to us this document with your signature(s) or seal(s) prior to the use of the products herein. When considering the use of Sanken products in the applications where higher reliability is required (transportation equipment and its control systems, traffic signal control systems or equipment, fire/crime alarm systems, various safety devices, etc.), please contact your nearest Sanken sales representative to discuss, and then return to us this document with your signature(s) or seal(s) prior to the use of the products herein. The use of Sanken products without the written consent of Sanken in the applications where extremely high reliability is required (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. In the case that you use our semiconductor devices or design your products by using our semiconductor devices, the reliability largely depends on the degree of derating to be made to the rated values. Derating may be interpreted as a case that an operation range is set by derating the load from each rated value or surge voltage or noise is considered for derating in order to assure or improve the reliability. In general, derating factors include electric stresses such as electric voltage, electric current, electric power etc., environmental stresses such as ambient temperature, humidity etc. and thermal stress caused due to self-heating of semiconductor devices. For these stresses, instantaneous values, maximum values and minimum values must be taken into consideration. In addition, it should be noted that since power devices or IC’s including power devices have large self-heating value, the degree of derating of junction temperature (Tj) affects the reliability significantly. When using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, chemically or otherwise processing or treating the products, please duly consider all possible risks that may result from all such uses in advance and proceed therewith at your own responsibility. Anti radioactive ray design is not considered for the products listed herein. Sanken assumes no responsibility for any troubles, such as dropping products caused during transportation out of Sanken’s distribution network. SSJ-04244 13／13 61426-01