a tiv e T ent 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 multi chip module IC, it was possible to reduce the number of components drastically. 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. -10°C ~ +70°C - No Heat Sink required - MTBF 1,000,000Hrs. - Long life, High reliability - Over-Current Protection - Over-Temp. Protection Table 1 Model TSI 15N-0509 TSI 15N-0509D TSI 15N-2410 TSI 15N-2410D TSI 15N-2412 TSI 15N-2412D Input Voltage Output Voltage Output Current Input Load Regulation Regulation Ripple & Noise Efficiency Package Type Vdc Vdc A %(typ) %(typ) mVpp(typ) %(typ) 5.0 (+4.75 ~ 6) +2.5 (+1.5 ~ 3.3) 0~3 1.5 1 50 91 +9 ~ 36 +3.3 (+3 ~ 5) 0 ~ 1.8 (0 ~ 2.2) 1.5 1 50 84 +18 ~ 36 +12 (+9 ~ 12) 0 ~ 0.75 (0 ~ 1) 1.5 1 100 94 SIP DIP SIP DIP SIP 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 -10°C ~ +50°C) 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 ~ +70°C ( Refer to Page 6, Thermal derating ) Storage Temp. range -20 °C ~ +85°C 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 11±5ms Weight 7.5g typ. Dimension see page 2 1 a ti v e T ent TSI 15N Series 7.2typ Lot N um ber Outline SIP Type ( Figure 1 ) t 1.0 38(+0.8/-0.5) A24-12-1 Bellnix 21.5(+1/-0.5) 212 2.5typ 24 max 4.5typ 12 2.54× 11=27.94 38(+0.8/-0.5) 18 0.25 pin Lot N umber 13 1 A24-12-1D Bellnix 21.5(+1/-0.5) 212 2 6 7 8 t 0.25 12 3 4 5 9 10 8.5max 1 Tolerances with nothing specified ±0.5 22.25± 0.6 DIP Type ( Figure 2 ) Dimensions: mm 3.5± 1.5 1 Dimensions: mm 3.5± 1.5 0.5 2.54× 11=27.94 pin 1 2 3 4 5 6 7 8 9 10 11 12 Tolerances with nothing specified ±0.5 11 F unction O n/O ff + V in + V in + V in GND GND GND GND + V out + V out + V out V .adj Function O n/O ff + Vin + Vin + Vin G ND G ND G ND G ND + Vout + Vout + Vout 12 V .adj 13• 18 N o C onnection Block Diagram TSI15N BSA 15WSeries Series +V in 9 2 3 4 +V out 10 11 PWM.OCP.CONT ON/OFF CONT DC Input + • 1 on/off + Load C2 1 V .adj 12 GND 5 6 7 8 Output ON=Short Output OF=Ope ( Figure 4 ) 2 a tiv e T ent 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 9• 11 BSA15W15N TSI Series Series rating, without changing. By connecting resistance between the terminal +Vout +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 Rx 12 V.ADJ Vref Ry 5• 8 G ND VR1 voltage in Table 1. Please refer to the undermentioned equation for the calculation of external resistance. Please confirm the output Load voltage and adjust resistance value after calculating external resistance. VR2 To reduce the output voltage you can change output voltage within the range of voltage in Table 1. 0509 2410 2412 Vo=Req. Vout Vo=Req. Vout VR1 Rx×Ry×(Vo-Vref) Rx×2.45-Ry(Vo-Vref) Vref×Rx×Ry VR2 = Ry(Vo-Vref)-Vref×Rx (9~12V) Rx=765ohm Rx=8.6Kohm Ry=2.2Kohm Ry=2.2Kohm VR2 = OPEN To add the output voltage (3~3.3V) Vref=2.45V 0509 Vref=2.45V 2410 Vo=Req. Vout (3.3~5V) Rx=765ohm VR1 = OPEN Ry=2.2Kohm Vref=2.45V 3 a T ent tiv e TSI 15N Series Turn-On Transient Time Output Voltage Ripple & Noise TSI 15N-0509 TSI 15N-0509 t.b.a t.b.a TSI 15N-2410 TSI 15N-2410 Vout 1V/div • Vout=0V • 20mv/div Vin 10V/div • Vin=0V • Vin=On 2.5• s/div t• 2m s/div Test conditions: At rating input, rating load and room temp. Test conditions: At rating input, rating load and room temp. TSI 15N-2412 TSI 15N-2412 Vout 5V/div • Vout=0V • 50mv/div Vin 10V/div • Vin=0V • Vin=On t• 5ms/div Test conditions: At rating input, rating load and room temp. 2.5• s/div Test conditions: At rating input, rating load and room temp. 4 a t iv e T ent TSI 15N Series Temperature derating TSI 15N-0509 TSI 15N-0509 t.b.a t.b.a TSI 15N-2410 TSI 15N-2410 2.2 2.2 1.8 1.6 1.6 1.2 V in= 9V V in= 24V 0.8 0.88A V in= 36V Load Current (A) Load Current (A) 1.8 0.4 0 -10 1.2 V in= 9,24V 0.8 0.88A V in= 36V 0.4 0 10 20 30 40 50 60 0 -10 70 Ambient S urrounding Temperature T em perature• • • 0 TSI 15N-2412 0.8 Vin=18V Vin=24V 0.2 Load Current (A) 0.8 Load Current (A) 1.0 0.4 20 30 40 50 60 70 TSI 15N-2412 1.0 0.6 10 S urrounding Temperature Tem perature• • • Ambient 0.6 Vin=18,24V 0.4 Vin=36V 0.2 Vin=36V 0 -10 0 10 20 30 40 50 60 70 Ambient• Temperature • • • • • • 0 -10 0 10 20 30 40 50 60 Surrounding Temperature Tem perature• • • Ambient 70 5 a tiv e T ent TSI 15N Series Soldering Conditions Solder to be executed under the following conditions. 1. Hand soldering 340°C ~ 360°C, 5sec.max 2. Flow soldering 230°C ~ 260°C, 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. +V in FU S E 2• 4 9• 11 +V out TSI B S• 15W15N S eries +Vin 5• 8 12 G ND V .• • • 1 C1 on/off C• SCR O ver V oltage D etection C ircuit Load (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. +Vin FU S E 2• 4 9• 11 +Vout TSI 15N BS• 15W Series +Vin 1 C1 on/off 5• 8 12 GND V.• • • C2 SCR O verV oltage D etection C ircuit Load (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.com 6