step-down dc-dc converter 15 watt TSI-15N series TSI-15N series are step down converters whith a very high efficiency . by adopting a custom herewith two goals, high reliability and low cost could be realized. features - ultra small - easy to use ; sip / dip type - high efficiency (84 ~ 94 %) - adjustable output range - operating temp. -10c ~ +70c - no heat sink required - mtbf 1,000,000hrs. - long life, high reliability - over-current protection - over-temp. protection table 1 output input load ripple & current regulation regulation noise vdc vdc a %(typ) %(typ) mvpp(typ) %(typ) type tsi 15n-0509 5.0 +2.5 sip tsi 15n-0509d (+4.75 ~ 6) (+1.5 ~ 3.3) dip tsi 15n-2410 +3.3 0 ~ 1.8 sip tsi 15n-2410d (+3 ~ 5) (0 ~ 2.2) dip tsi 15n-2412 +12 0 ~ 0.75 sip tsi 15n-2412d (+9 ~ 12) (0 ~ 1) dip note 1: rating input voltage ( ) value indicates input voltage range. note 2: output current ( ) with forced air cooling. note 3: rating output voltage ( ) value indicates adjustable, possible range. specification rating input voltage refer to table 1 rating output voltage refer to table 1 adjustable output range output voltage is adjustable within the above range in table 1. (by the external resistance) input regulation 1.5% typ., 3.0% max. (for the input voltage regulation in table 1) load regulation 1.0% typ., 2.0% max. (for 0 ~ 100% regulation ) temperature regulation 0.01%/ c typ. (for the regulation of operating temperature -10c ~ +50c) ripple & noise 50/100mvp-p typ., 150mvp-p max. (20 mhz band width) efficiency 84% ~ 94% typ. (rating i/o, in room temp., refer to table 1) over-current protection operation at 105% or more of rating load current, auto recovery type. over-voltage protection none on/off control between 1 pin (on/off) - 5 ~ 8 pin (gnd) [open: output off, short: output on] non- load input current tsi 15n-0509 models: t.b.a, tsi 15n-2410 models: 15ma typ., tsi 15n-2412 models: 25ma typ.(no load) stand-by current 1ma typ. ( off control ) mtbf 1,000,000hr min ( eiaj rcr-9102 ) switching frequency 250 khz typ. operating temp. range -10 c ~ +70c ( refer to page 6, thermal derating ) storage temp. range -20 c ~ +85c humidity range 20% ~ 95% r.h ( max temperature 35 c, only non - condensing ) cooling condition natural air - cooling at rated output current as in vibration 5 ~ 10 hz all amplitude 10 mm, 10 ~ 55 hz acceleration 2g ( 1 hr. in each of 3 axes ) shock acceleration 20g ( 3 times in each of 3 axes), shocking time 115ms weight 7.5g typ. dimension see page 2 1 multi chip module ic, it was possible to reduce the number of components drastically. input voltage output voltage model efficiency 84 +18 ~ 36 1.5 1 100 94 +9 ~ 36 1.5 1 50 package 50 91 0 ~ 3 1.5 1 tentative tentative
tsi 15n series outline sip type ( figure 1 ) dip type ( figure 2 ) block diagram output on=short output of=ope ( figure 4 ) 2 0.25 4.5typ t 1.0 2.5typ 7.2typ 21.5(+1/-0.5) 38(+0.8/-0.5) 24 max 3.5 1.5 1 12 a24-12-1 bellnix 2.54 11=27.94 lot number 212 dimensions: mm tolerances with nothing specified 0.5 0.5 8.5max 3.5 1.5 2.54 11=27.94 21.5(+1/-0.5) 38(+0.8/-0.5) 112 a24-12-1d 22.25 0.6 t 0.25 13 18 lot number bellnix 212 1 on/off 10 9 8 7 6 5 4 3 2 gnd +vin +vout function pin +vin +vin +vout gnd gnd gnd 12 11 +vout v.adj 13 18 no connection +v in +v out v.adj pwm.ocp.cont on/off cont 310 2 on/off dc in pu t gnd 1 9 56 12 + 1 load + c2 11 78 4 bsa 15w series 1on/off 10 9 8 7 6 5 4 3 2 gnd +vin +vout function pin +vin +vin +vout gnd gnd gnd 12 11 +vout v.adj dimensions: mm tolerances with nothing specified 0.5 tsi15n series tentative tentative
tsi 15n series application notes (c) output voltage changeable direction ( figure 7 ) please open the terminal v.adj when you use the output voltage with rating, without changing. by connecting resistance between the terminal +vout (9~11pin) and v.adj (12 pin), or between the terminal v.adj (12 pin) and gnd (5~8 pin) you can change output voltage within the range of voltage in table 1. please refer to the undermentioned equation for the calculation of external resistance. please confirm the output voltage and adjust resistance value after calculating external resistance. you can change output voltage within the range of voltage in table 1. to reduce the output voltage 0509 2410 2412 vo=req. vout vo=req. vout (3~3.3v) (9~12v) rx=765ohm rx=8.6kohm ry=2.2kohm ry=2.2kohm vref=2.45v vref=2.45v to add the output voltage 0509 2410 vo=req. vout (3.3~5v) rx=765ohm ry=2.2kohm vref=2.45v 3 rxry(vo-vref) rx2.45-ry(vo-vref) vr1 vr2 = open vrefrxry ry(vo-vref)-vrefrx vr2 = vr1 = open rx ry v.adj +vout vr1 bsa15w series 9 11 12 5 8 load gnd vref vr2 tsi 15n series tentative tentative
tsi 15n series turn-on transient time output voltage ripple & noise tsi 15n-0509 tsi 15n-0509 tsi 15n-2410 tsi 15n-2410 tsi 15n-2412 tsi 15n-2412 4 vin=0v vout=0v vin=on vout 5v/div vin 10v/div t 5ms/div vin=0v vout 1v/div vout=0v vin=on vin 10v/div t 2ms/div 2.5 s/div 50mv/div 2.5 s/div 20mv/div test conditions: at rating input, rating load and room temp. test conditions: at rating input, rating load and room temp. test conditions: at rating input, rating load and room temp. test conditions: at rating input, rating load and room temp. t.b.a t.b.a tentative tentative
tsi 15n series temperature derating 5 tsi 15n-0509 tsi 15n-0509 tsi 15n-2410 tsi 15n-2410 tsi 15n-2412 tsi 15n-2412 -10 010 60 70 50 30 40 20 surrounding tem perature 1.8 0 0.4 1.6 1.2 0.8 load current (a) 2.2 vin=9v vin=24v vin=36v 0.88a -10 0 10 60 70 50 30 40 20 surrounding temperature 1.8 0 0.4 1.6 1.2 0.8 load current (a) 2.2 vin= 9,24v vin=36v 0.88a -10 0 10 60 70 50 30 40 20 surrounding temperature 1.0 0 0.2 0.8 0.6 0.4 load current (a) vin=18,24v vin=36v t.b.a t.b.a -10 0 10 60 70 50 30 40 20 1.0 0 0.2 0.8 0.6 0.4 load current (a) vin=18v vin=24v vin=36v ambient temperature ambient temperature ambient temperature ambient temperature tentative tentative
tsi 15n series soldering conditions solder to be executed under the following conditions. 1. hand soldering 340c ~ 360c, 5sec.max 2. flow soldering 230c ~ 260c, 10sec.max. reverse input voltage protection the input/output of this products is a non-isolated type and a step-down dc-dc converter from (+) polarity to (+) polarity. if you connect the input polarity reversed of this product by mistake it will be eventually damaged. if there is a possibility of reverse connection, please add a protection circuit as indicated in the following figure. the figure below is an example using fuse and diode. (figure 14) over-voltage protection this product does not have a built-in over-voltage protection. when the switching element of this converter gets damaged by short mode, input voltage (+vin) will go out on the output. for emergency if it gets damaged at over-voltage mode, please add a circuit as below to intercept the supplying power circuit. (figure 15) jenatschstrasse 1 ? ch-8002 zurich switzerland tel. +41-1284 2911 fax +41-1201 1168 e-mail: sales @ traco.ch internet: http://www.tracopower.co m 6 2 4 +vout bs 15w series +vin v. on/off 1 5 812 9 11 fuse +vin c1 load scr over voltage detection circuit c gnd 2 4 +vout bs 15w series +vin v. on/off 1 5 812 9 11 fuse +vin c1 load scr over- voltage detection circuit c2 gnd tentative tentative tsi 15n tsi 15n
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