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sanken electric co., ltd. http://www.sanken-ele.co.jp/en/ description the STR-A6051M, str-a6052m, str-a6053m, and str-a6079m are power ics for switching power supplies, incorporating a power mosfet and a current mode pwm controller ic in one package. to achieve low power consumption, these products include a startup circuit and a standby function in the controller. the switching modes are automatically changed according to load conditions: in normal operation, pwm mode, and in light load conditions, burst mode. the rich set of protection features helps to realize low component counts, and high performance- to-cost power supply. features and benefits ? current mode pwm control ? brown-in and brown-out function: auto-restart, prevents excess input current and heat rise at low input voltage ? auto standby function: improves efficiency by burst mode operation in light load ? normal load operation: pwm mode ? light load operation: burst mode ? no load power consumption < 25 mw ? operating frequency, f osc(avg) (typ) = 67 khz ? random switching function: reduces emi noise, and simplifies emi filters ? slope compensation function: avoids subharmonic oscillation ? leading edge blanking function pwm off-line switching regulator ics typical application circuit not to scale continued on the next page? str-a6000m series str-a6000hd-ds january 8, 2013 applications: switching power supplies for electronic devices such as: ? battery charger ? standby power supply ? small switch-mode power supply (smps) ? auxiliary power supply for controller package: dip8 vac c1 c5 r1 d1 br1 r2 c2 t1 d p pc 1 c3 r ocp c9 crd clamp snubber c4 c cr dumper snubber 1234 d/st d/st br nc s/ocp fb/olp gnd vcc 87 5 str-a6000 u1 d2 c10 r c r b r a d51 c51 r51 r52 u51 r54 r56 c52 s pc1 r53 r55 l51 c53 vout gnd
2 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 selection guide part number power mosfet output power*, p out (w) v dss (min) (v) r ds(on) (max) ( ) open frame adaptor 230 vac 85 to 265 vac 230 vac 85 to 265 vac STR-A6051M 650 3.95 30 21 20 16 str-a6052m 650 2.8 35 25 23 19 str-a6053m 650 1.9 41 29 26 22 str-a6079m 800 19.2 13 9 8 6 *the listed output power is based on the thermal ratings, and the peak output power can be 120% to 140% of the value stated here. at low output voltage and short duty cycle, the output power may be less than the value stated here. features and benefits (continued) the polarity value for current specifies a sink as "+," and a source as ? ? ,? referencing the ic. absolute maximum ratings unless otherwise specified, t a = 25c characteristic symbol notes pins rating unit drain peak current 1 i dpeak STR-A6051M single pulse 8 ? 1 2.5 a str-a6052m 3.0 a str-a6053m 4.0 a str-a6079m 1.2 a avalanche energy 2 e as STR-A6051M single pulse, v dd = 99 v, l = 20 mh, i lpeak = 2 a 8 ? 1 47 mj str-a6052m single pulse, v dd = 99 v, l = 20 mh, i lpeak = 2.3 a 62 mj str-a6053m single pulse, v dd = 99 v, l = 20 mh, i lpeak = 2.7 a 86 mj str-a6079m single pulse, v dd = 99 v, l = 20 mh, i lpeak = 1.2 a 7mj s/ocp pin voltage v ocp 1 ? 3 ? 2 to 6 v control part input voltage v cc 5 ? 332v fb/olp pin voltage v fb 4 ? 3 ? 0.3 to 14 v fb/olp pin sink current i fb 4 ? 3 1.0 ma br pin voltage v br 2 ? 3 ? 0.3 to 7 v br pin sink current i br 2 ? 3 1.0 ma power dissipation of mosfet 3 p d1 mounted on 15 mm 15 mm printed circuit board 8 ? 1 1.35 w power dissipation of control part p d2 5 ? 3 1.2 w operating ambient temperature 4 t op ? ? 20 to 125 c storage temperature t stg ? ? 40 to 125 c channel temperature t ch ? 150 c 1 refer to mosfet safe operating area curve. 2 refer to mosfet avalanche energy derating coefficient curve. 3 refer to mosfet temperature versus power dissipation curve. 4 the recommended internal frame temperature, t f , is 115c (max). ? audible noise suppression function during standby mode ? protection features ? overcurrent protection (ocp): pulse-by-pulse, with input compensation function ? overvoltage protection (ovp): latched shutdown ? overload protection (olp): auto-restart, with timer ? thermal shutdown protection (tsd): latched shutdown
3 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 electrical characteristics of control part unless otherwise specified, t a = 25c, v cc = 18 v characteristic symbol test conditions pins min. typ. max. unit operation start voltage v cc(on) 5 ? 3 13.8 15.3 16.8 v operation stop voltage 1 v cc(off) 5 ? 3 7.3 8.1 8.9 v circuit current in operation i cc(on) v cc = 12 v 5 ? 3 ? ? 2.5 ma minimum start voltage v st(on) 5 ? 3 ? 38 ? v startup current i startup v cc = 13.5 v 5 ? 3 ? 3.7 ? 2.5 ? 1.5 ma startup current threshold biasing voltage 1 v cc(bias) i cc = ? 100 a5 ? 3 8.5 9.5 10.5 v average operation frequency f osc(avg) 8 ? 3 60 67 74 khz frequency modulation deviation f8 ? 3 ? 5 ? khz maximum duty cycle d max 8 ? 377 83 89 % minimum on-time t on(min) ? ? 540 ? ns leading edge blanking time t bw ? ? 340 ? ns ocp compensation coefficient dpc ? ? 20 ? mv/ s ocp compensation duty cycle limit d dpc ??36?% ocp threshold voltage at zero duty cycle v ocp(l) 1 ? 3 0.70 0.78 0.86 v ocp threshold voltage at 36% duty cycle v ocp(h) v cc = 32 v 1 ? 3 0.81 0.9 0.99 v maximum feedback current i fb(max) v cc = 12 v 4 ? 3 ? 340 ? 230 ? 150 a minimum feedback current i fb(min) 4 ? 3 ? 30 ? 15 ? 7 a fb/olp pin oscillation stop threshold voltage v fb(stb) 4 ? 3 0.85 0.95 1.05 v olp threshold voltage v fb(olp) 4 ? 3 7.3 8.1 8.9 v olp delay time t olp 4 ? 354 68 82 ms olp operation current i cc(olp) v cc = 12 v 5 ? 3 ? 300 600 a fb/olp pin clamp voltage v fb(clamp) 4 ? 3 11 12.8 14 v brown-in threshold voltage v br(in) v cc = 32 v 2 ? 3 5.2 5.6 6 v brown-out threshold voltage v br(out) v cc = 32 v 2 ? 3 4.45 4.8 5.15 v br pin clamp voltage v br(clamp) v cc = 32 v 2 ? 3 6 6.4 7 v br function disabling threshold voltage v br(dis) v cc = 32 v 2 ? 3 0.3 0.48 0.7 v vcc pin ovp threshold voltage v cc(ovp) 5 ? 326 29 32 v latch circuits holding current 2 i cc(latch) v cc = 9.5 v 5 ? 3 ? 700 ? a thermal shutdown temperature t j(tsd) ? 135 ? ? c 1 v cc(bias) > v cc(off) always. 2 a latch circuit is a circuit operated with overvoltage protection (ovp) and/or thermal shutdown protection (tsd) in operation.
4 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 electrical characteristics of mosfet unless otherwise specified, t a is 25c characteristic symbol test conditions pins min. typ. max. unit drain-to-source breakdown voltage v dss STR-A6051M str-a6052m str-a6053m 8 ? 1 650 ? ? v str-a6079m 800 ? ? v drain leakage current i dss 8 ? 1 ? ? 300 a on-resistance r ds(on) STR-A6051M 8 ? 1 ? ? 3.95 str-a6052m ? ? 2.8 str-a6053m ? ? 1.9 str-a6079m ? ? 19.2 switching time t f STR-A6051M str-a6052m str-a6053m 8 ? 1 ? ? 250 ns str-a6079m ? ? 400 ns thermal resistance r ch-c the thermal resistance between the channels of the mosfet and the case. case temperature, t c , is measured at the center of the case top surface. ? ? ? 22 c/w
5 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 time (s) 10 1 0.1 0.01 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 transient thermal resistance, r ch-c (c/w) transient thermal resistance curve ambient temperature, t a (c) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 20406080 120 100 160 140 allowable power dissipation, p d1 (w) mosfet temperature versus power dissipation curve p d1 = 1.35 w channel temperature, t ch (c) 100 80 60 40 20 0 25 50 75 125 100 150 e as temperature derating coefficient (%) mosfet avalanche energy derating coefficient curve drain-to-source voltage, v ds (v) 10 1 0.1 0.01 1 10 100 1000 drain current, i d (a) mosfet safe operating area curve drain current limited by on-resistance t a = 25c single pulse to use this graph, apply the s.o.a temperature derating coefficient taken from the graph at the left 1 ms 0.1 ms channel temperature, t ch (c) 100 80 60 40 20 0 0 25 50 75 100 125 150 safe operating area temperature derating coefficient (%) s. o. a. temperature derating coefficient curve characteristic performance STR-A6051M
6 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 time (s) 10 1 0.1 0.01 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 transient thermal resistance, r ch-c (c/w) transient thermal resistance curve ambient temperature, t a (c) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 20406080 120 100 160 140 allowable power dissipation, p d1 (w) mosfet temperature versus power dissipation curve p d1 = 1.35 w channel temperature, t ch (c) 100 80 60 40 20 0 25 50 75 125 100 150 e as temperature derating coefficient (%) mosfet avalanche energy derating coefficient curve drain-to-source voltage, v ds (v) 10 1 0.1 0.01 1 10 100 1000 drain current, i d (a) mosfet safe operating area curve drain current limited by on-resistance t a = 25c single pulse to use this graph, apply the s.o.a temperature derating coefficient taken from the graph at the left 1 ms 0.1 ms channel temperature, t ch (c) 100 80 60 40 20 0 0 25 50 75 100 125 150 safe operating area temperature derating coefficient (%) s. o. a. temperature derating coefficient curve characteristic performance str-a6052m
7 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 time (s) 10 1 0.1 0.01 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 transient thermal resistance, r ch-c (c/w) transient thermal resistance curve ambient temperature, t a (c) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 20406080 120 100 160 140 allowable power dissipation, p d1 (w) mosfet temperature versus power dissipation curve p d1 = 1.35 w channel temperature, t ch (c) 100 80 60 40 20 0 25 50 75 125 100 150 e as temperature derating coefficient (%) mosfet avalanche energy derating coefficient curve drain-to-source voltage, v ds (v) 10 1 0.1 0.01 1 10 100 1000 drain current, i d (a) mosfet safe operating area curve drain current limited by on-resistance t a = 25c single pulse to use this graph, apply the s.o.a temperature derating coefficient taken from the graph at the left 1 ms 0.1 ms channel temperature, t ch (c) 100 80 60 40 20 0 0 25 50 75 100 125 150 safe operating area temperature derating coefficient (%) s. o. a. temperature derating coefficient curve characteristic performance str-a6053m
8 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 time (s) 10 1 0.1 0.01 10 -7 10 -6 10 -5 10 -4 10 -3 10 -2 10 -1 transient thermal resistance, r ch-c (c/w) transient thermal resistance curve ambient temperature, t a (c) 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 20406080 120 100 160 140 allowable power dissipation, p d1 (w) mosfet temperature versus power dissipation curve p d1 = 1.35 w channel temperature, t ch (c) 100 80 60 40 20 0 25 50 75 125 100 150 e as temperature derating coefficient (%) mosfet avalanche energy derating coefficient curve drain-to-source voltage, v ds (v) 10 1 0.1 0.01 1 10 100 1000 drain current, i d (a) mosfet safe operating area curve drain current limited by on-resistance t a = 25c single pulse to use this graph, apply the s.o.a temperature derating coefficient taken from the graph at the left 1 ms 0.1 ms channel temperature, t ch (c) 100 80 60 40 20 0 0 25 50 75 100 125 150 safe operating area temperature derating coefficient (%) s. o. a. temperature derating coefficient curve characteristic performance str-a6079m
9 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 d/s t vcc 5 2 4 s/ocp fb/olp gnd br drv pwm osc reg sq r slope co mp ensatio n 6.4 v v reg fe edback control ocp drain peak current compe nsa ti on 7 v 12.8 v v cc leb olp ovp ts d startup uvlo brown-in/ brown-out 7,8 1 3 functional block diagram 1 2 3 4 8 7 5 d/st d/st vcc s/ocp br gnd fb/olp pin-out diagram pin list table number name function 1 s/ocp mosfet source, and input for overcurrent protection (ocp) signal 2 br input for brown-in and brown-out detection voltage 3 gnd ground 4 fb/olp feedback signal input for constant voltage control signal, and input of overload protection (olp) signal 5 vcc power supply voltage input for control part and input of overvoltage protection (ovp) signal 6 ? (pin removed) 7, 8 d/st mosfet drain, and input of the startup current
10 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 vac c1 c5 r1 d1 br1 r2 c2 t1 d p pc 1 c3 r ocp c9 crd clamp snubber c4 c cr dumper snubber 1234 d/st d/st br nc s/ocp fb/olp gnd vcc 87 5 str-a6000 u1 d2 c10 r c r b r a d51 c51 r51 r52 u51 r54 r56 c52 s pc1 r53 r55 l51 c53 vout gnd vac c1 c5 r1 d1 br1 r2 c2 t1 d p pc 1 c3 r ocp c9 crd clamp snubber c4 c cr dumper snubber 1234 d/st d/st br nc s/ocp fb/olp gnd vcc 87 5 str-a6000 u1 d2 d51 c51 r51 r52 u51 r54 r56 c52 s pc1 r53 r55 l51 c53 vout gnd typical application circuits typical application circuit example, enabled brown-in/brown-out function (dc line detection) typical application circuit example, disabled brown-in/brown-out function
11 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 0 . 2 5 + 0 . 1 - 0 . 0 5 6.5 1 4 5 8 9.4 0.3 0.5 0.1 0.89 typ 4.2 0.3 3.3 3.4 0.1 0.2 (7.6 typ) 2.54 typ -0.05 -0.05 0.2 0.5 7.5 +0.3 +0.3 1.0 1.52 unit mm part number lot number sanken control number a60 xx m sk ymd y is the last digit of the year (0 to 9) m is the month (1 to 9, o, n, or d) d is a period of days (1 to 3): 1 ? 1 st to 10 th 2 ? 11 th to 20 th 3 ? 21 st to 31 st 8 1 package diagram device composition compliant with the rohs directive. ? dip8 package ? the following show a representative type of dip8. ? the pin 6 is removed to provide greater creepage and clearance isolation between the high voltage pins (pins 7 and 8: d/st) and the low voltage pin (pin 5: vcc).
12 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 operating precautions in the case that you use sanken products or design your prod- ucts by using sanken products, the reliability largely depends on the degree of derating to be made to the rated values. derat- ing 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 products. for these stresses, instantaneous val- ues, 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 affects the reliability significantly. because reliability can be affected adversely by improper stor- age environments and handling methods, please observe the following cautions. cautions for storage ? ensure that storage conditions comply with the standard tem- perature (5 to 35c) and the standard relative humidity (around 40 to 75%); avoid storage locations that experience extreme changes in temperature or humidity. ? avoid locations where dust or harmful gases are present and avoid direct sunlight. ? reinspect for rust on leads and solderability of the products that have been stored for a long time. cautions for testing and handling when tests are carried out during inspection testing and other standard test periods, protect the products from power surges from the testing device, shorts between the product pins, and wrong connections. ensure all test parameters are within the ratings specified by sanken for the products. remarks about using silicone grease with a heatsink ? when silicone grease is used in mounting the products on a heatsink, it shall be applied evenly and thinly. if more silicone grease than required is applied, it may produce excess stress. ? volatile-type silicone greases may crack after long periods of time, resulting in reduced heat radiation effect. silicone greases with low consistency (hard grease) may cause cracks in the mold resin when screwing the products to a heatsink. our recommended silicone greases for heat radiation purposes, which will not cause any adverse effect on the product life, are indicated below: type suppliers g746 shin-etsu chemical co., ltd. yg6260 momentive performance materials inc. sc102 dow corning toray co., ltd. soldering ? when soldering the products, please be sure to minimize the working time, within the following limits: 260 5 c 10 1 s (flow, 2 times) 380 10 c 3.5 0.5 s (soldering iron, 1 time) ? soldering should be at a distance of at least 1.5 mm from the body of the products. electrostatic discharge ? when handling the products, the operator must be grounded. grounded wrist straps worn should have at least 1m of resis- tance from the operator to ground to prevent shock hazard, and it should be placed near the operator. ? workbenches where the products are handled should be grounded and be provided with conductive table and floor mats. ? when using measuring equipment such as a curve tracer, the equipment should be grounded. ? when soldering the products, the head of soldering irons or the solder bath must be grounded in order to prevent leak volt- ages generated by them from being applied to the products. ? the products should always be stored and transported in sanken shipping containers or conductive containers, or be wrapped in aluminum foil.
13 sanken electric co., ltd. str-a6000m-ds pwm off-line switching regulator ics str-a6000m series january 8, 2013 ? the contents in this document are subject to changes, for improvement and other purposes, without notice. make sure that this is the latest revision of the document before use. ? application and operation examples described in this document are quoted for the sole purpose of reference for the use of the prod- ucts herein and sanken can assume no responsibility for any infringement of industrial property rights, intellectual property r ights or any other rights of sanken or any third party which may result from its use. unless otherwise agreed in writing by sanken, sank en makes no warranties of any kind, whether express or implied, as to the products, including product merchantability, and fitness for a particular purpose and special environment, and the information, including its accuracy, usefulness, and reliability, included in this document. ? although sanken undertakes to enhance the quality and reliability of its products, the occurrence of failure and defect of se micon- ductor products at a certain rate is inevitable. users of sanken products are requested to take, at their own risk, preventativ e 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 equ ip- ment or apparatus (home appliances, office equipment, telecommunication equipment, measuring equipment, etc.). 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.), and whenever long life expectancy is required even in general purpose electronic equipment or apparatus, please contact your nearest sanken sales representative to discuss, 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 requir ed (aerospace equipment, nuclear power control systems, life support systems, etc.) is strictly prohibited. ? when using the products specified herein by either (i) combining other products or materials therewith or (ii) physically, ch emically 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 dis tribu- tion network. ? the contents in this document must not be transcribed or copied without sanken?s written consent. important notes

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