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| a t iv e T ent High Effiency DC /DC Converter 20 Watt TSI-20N Series TSI-20N series is a small size (33x21.5x6mm size) and light weight ( g) step-down DC-DC converter with 20W. Since it can operate from ultra low output voltage of 0.8V, it can be used for latest DSP, ASIC applications. High efficiency, ulra high-speed response by synchronous rectification topology. No external components required. Input: +3.3V/+5.0V Features - High-speed response - Ultra high Efficiency 93% - ON/OFF Control - Adjustable Output - Latest Power-IC adopted Output: +1.8V, +2.0V, +2.5V, +3.3V (+0.8V ~ +3.6V) - Non-Isolated Type Converter - Amazing Minimum Size - Operating Temp. -40C~+85C - No Heat Sink required - High Reliability, High Performance - Synchronous Rectification Circuit - Additional external capacitor not required - Short-Circuit, Over-Current Protection Model Standard Input Input Voltage Voltage Range Output Voltage Output Current Non-Load Current Ripple & Noise Efficiency Package Vdc TSI 20N-0510V TSI 20N-0510D TSI 20N-0510S 5.0 Vdc~Vdc Vdc A 6 mA(typ) 3 mVpp(typ) 40 %(typ) 93 type SIP DIP SMD +3.0~5.5 (*1) +3.3(0.8~3.6) (*1) Input Voltage should be 0.5V or more higher than output voltage. Specification Standard Output Voltage Line Reg. Load Reg. Temp. Coefficient Ripple & Noise Efficiency Over-Current Protection Over-Voltage Protection Standby Current Remote ON/OFF Remote Sensing Operating Temp. Range Storage Temp. Range Humidity Range Cooling Condition Vibration Weight External Dimensions When Vadj pin is open, output voltage will be set at +3.3V. (The accuracy of output V setting is 3% max.) 0.7%typ. 1.5%max. (For the regulation of Input Voltage Range 3.8~5.5V) 2.0%typ. 4.0%max. (For 0~6A of Load Reg., at Rating Input. 0.02%/C typ. (For the change of Operating Temp. -10C~+50C) 120mVpp max. (Rating Input, Rating Output, Room Temp.) (Measurements Frequency Band Width 20MHz) 93% (Rating Input/ Output, Room Temp., Refer Table 1) Operates at 105% or moreRating Load Current, auto recovery type. Avoid long time of short-circuit condition. None 2.4mA typ. Between 1pin(ON/OFF) 5~8pin(S.GND) [Open: Output ON, Short: Output OFF(Refer to application)] The voltage between converter's output pin voltage between 7-8pin and sensing voltage difference [voltage between 6-9pin] is 10% of sensing voltage (0.1V~0.3V) or below. Operating Temp. -40C~+85C (Refer to the thermal derating graph.) Storage Temp. -40C~+85C 20% ~ 95%R.Hmax. (Max. Wet-bulb Temp. 35C, non-condensing) Refer to the thermal derating graph 5~10Hz Every amplitude 10mm (3directions, each for 1hour), 10~55Hz acceleration 2G (3directions, each for 1hour) 4g typ. SIP type W=24 L=33 H=5.0 typ. (mm) Adjustable Output V Rang Output Voltage is adjustable according to the range above. (For dimensions refer to outline.) (For dimensions refer to outline.) (For dimensions refer to outline.) DIP type W=22.25 L=33 H=6.0 typ. SMD type W=23.9 L=33 H=6.0 typ. (mm) (mm) * The above specification will be provided at rating value, when there is no specified condition described. 1 T e n ta tiv e TSI 20N Series 1. TSI 20N-0510V (SIP type) Pin 5.0m ax 33m ax 0.8 1.0typ 21.5(+1,-0.5) 3.0typ Function on/off Vin Vin Vin GND GND GND GND Vout Vout Vout V.ADJ 1 2 3 4 24max 5 6 3.51.5 7 0.25 1 0.5 P2.54x11=27.94 12 8 9 - Dimensions: mm - Dimension difference with nothing specified 0.5 10 11 12 2. TSI 20N-0510D (DIP type) 33m ax 24 C/L 13 21.5(+1,-0.5) Pin 1 2 22.250.6 Function on/off Vin Vin Vin GND GND GND GND Vout Vout Pin 11 12 13 14 15 22 23 24 Function Vout V.ADJ NC +S -S NC P-Good NC 3 4 5 0.25 1 12 6.0max 6 7 8 9 3.51.5 0.5 10 - Dimensions: mm - Dimension difference with nothing specified 0.5 P2.54x11=27.94 3. TSI 20N-0510S (SMD type) 33m ax 24 C/L 13 Pin 1 2 21.5(+ 1,-0.5 ) 23.9 0.8 Function on/off Vin Vin Vin Vin GND GND GND GND GND Vout Vout Pin 11 12 13 14 15 22 23 24 24 Function Vout V.ADJ NC +S -S NC P-Good NC NC 3 4 4 5 6 7 8 A 1 12 6.0m ax A Detailed figure of com ponent 0.25 0 ~ 10 8 9 10 0.5 (1.2) P2.54x11=27.94 - Dimensions: mm - Dimension difference with nothing specified 0.5 2 T e n ta tiv e TSI 20N Series Standard Connection Circuit Diagram V out V in TSI20N BSV Series S eries V out +S V adj R1 C2 R2 Load V in C1 on/off SW O pen = O n S hort= O ff GND -S Figure 6 R 1:V out D own s etted res istor R 2:V out U P setted resis tor Note 1: When not using the ON/OFF control, keep ON/OFF pin open. Note 2: When not adjusting output, keep V.ADJ pin open. Note 3: When it includes inductance in input line or switch ing element is connected to the input side or the wire is long, to fulfill the performance C1 will be required. Also to lower the input impedance we recommend a pattern that has an additional C1, and to verify on a actual equipment. Or, by adding C2 you can lower the output ripple more. Recommended Capacitor C1=33 F10WV C2=2.2 F~22F C2: An output capacitor is built-in so it is not required, however by connecting 2.2 F~22 F you can lower the noise more Note 4: There is no +S, Pin in TSI 20N-0510V SIP type. Method of Adjusting Output Voltage When using at 3.3V without adjusting output voltage, keep V.ADJ pin (12Pin) open. By connecting a resistor between +Vout pin (9~11Pin)~V.ADJ pin (12Pin), you can adjust the output voltage in the range of 0.8~3.3V. (Vout Down Control) By connecting a resistor between Vadj pin (12Pin)~GND pin (5~8Pin), you can adjust the output voltage in the range of 3.3V~3.6V. (Vout Up Control) To calculate external resistance, please refer to the equation below. After calculating external resistance, please check output voltage and adjust resistance value. To set in the range of 0.8V~3.3V 9,10 ,1 1 BSV S eries Rx Rz +V ou t R1 Lo ad R2 5,6,7,8 GND Figure 7 R1= Rx x Ry (Vo-Vs) Rx x Vs-Ry (Vo-Vs) -Rz To set in the range of 3.3V~3.6V 12 V .AD J Rx x Ry x Vs R2= Ry (Vo-Vs) -Rx x Vs -Rz Vs Ry Vo= Requested output V Adjustable voltage range=0.8~3.6V Rx=10.2k ohm Ry=2.7k ohm Rz=0.1K ohm Vs=0.703V 3 a t iv e T ent TSI 20N Series Remote ON/OFF Control - ON/OFF Function By using this ON/OFF control function, the output can be ON/OFF controlled without intermitting input. This is an effective function when composing a power supply system sequence. And this can also be used as a power standby function for saving power control. - Not using ON/OFF Function To not use the ON/OFF function, keep ON/OFF pin open. TSI20N B SV Series S eries 1 - Method of ON/OFF Control Between ON/OFF pin (1Pin) and S.GND (5~8Pin) Open ---- Output=ON Short ---- Output=OFF (0~0.7V 1*A max.) E xam ple 5,6,7,8 G ND on/off or To prevent reverse connection of Input Power Supply (ex.) FUS E +V in 2,3,4 9,10,11 TSI20N B SV S eries Series +V out This prodcut is a non-isolated type DC-DC converter that steps-down from (+) to (+). If you connect the input voltage reversed by mistake, it will be damaged. If there is a possibility of reverse connection, please add a protection as the right figure. The right figure is an example using huse and diode. on/off +Vin D1 1 12 V .A D J Load 5,6,7,8 GND Over-Voltage Protection (ex.) This product does not have a built-in over-voltage protection. If the switching element in this converter is damaged in short mode input voltage +Vin will be output as is. However, to prepare for damage at over-voltage mode, we recommend to add a circuit to intercept the supplying power circuit. Note1: When it is damaged at over-voltage mode, ON/OFF control does not operate. Note2: When there is a ON/OFF function on the supplying power side, this may be used. Note 3: Be sure that the DC power supply on the supplying side has the capacity to fuse the fuse. FUS E +V in 2 ,3 ,4 9 ,1 0,11 +V out SCR + V in o n/off 1 TSI20N BSV Series S eries V .A D J 12 O verV oltage detec tion circuit L oa d 5 ,6 ,7 ,8 G ND Soldering Conditions Solder under the following conditions. 1. With soldering iron 2. With soldering dip 3. Reflow method (only for SMD type) Preheating Temp.: 15010C, within 1min. Main heating temp.: 235Cmax. 10sec max. Reflowing frequency: once T im e M ain heating 340C~360C within 3sec. 240C~260C within 10sec. Temp. P reheating 4 TSI 20N Series Block Diagram V in 4 V in 3 V in 2 P O W E R @ IC L1 V o ut 9 V o ut 10 V o ut 11 +S 14 C2 Rx Rz V .A D J 12 G ND 7 G ND 6 c on trol C1 ON/OFF P-Good VFB+ VFB- G ND 5 G ND 6 O N /O F F 1 P -G o od 23 * There is no P-Good, +S, -S pin inTSI 20-0510S (SIP type). Ry -S 15 Thermal Derating Please set this product in a place with good circulation. And when using this product in an environment that ambient temp. is 40C or more, please refer to the thermal derating below. 1 .5m /s 1 00 90 80 70 60 50 40 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 85 0 m/s 0 .5m /s L oa d C u rre nt D eratin g ra te (% ) Am bien t Te m p. (C ) 5 a ti v e T ent TSI 20N Series Method to decrease noise Usually TSI 20N series is used adding an input/output capacitor, and making the most of the converter's performance and to decrease the noise more, consider the following items when designing the print board. 1. Use low impedance capacitor which has good high frequency characteristic. 2. Shorten lead of each capacitor as much as possible, and make it low lead inductance. 3. Make the wiring loop space small between the (+) and (-) of both input and output pin side as much as possible. You can decrease the effect of leakage inductance. 4. Design the print pattern of the main circuit thick and short as much as possible. M a k e th e lo o p sp a c e s ma ll + V in + V in +V out TSI20N M a k e th e lo o p sp a c e s ma ll + V in -V in C1 BSV Series Series GND + V o ut Load C2 M a k e th e le a d sh o rt M a k e th e le a d sh o rt Precautions - For this product parallel/ series operation is not possible. - For mounting this product, please do not use connector or socket. The performance may not be fulfilled by the effect of contacting resistor. Mount to print board by soldering. - This product has a built-in over-current, short protection, but long time of short circuit will cause failure, so please avoid that. - May not be used in a use of that would affect lives or properties directly by the failure of this product. Please confrim before adopting. - Product can not be used under oscillation, strike or temp. condition that are out of the specification. Contact for any questions. - There is possibility of damage from static. When the worker has electrified static, electrical discharge by grounding, and recommend working on a table grounded. - This product does not have a built-in fuse. Connect a huse to the +input line for protection when over-current flows into input at abnormal. Please be sure that the supplying power has the capacity to cut the fuse. - This product does not have a built-in over-voltage protection. When over-voltage occurs by the abnormality in the module there is a mode that input voltage comes out at output as it is, and this may cause smoke and ignition. To prevent this, be sure to add over-voltage protection. - There is no test result report attached for this product. Reliability Test Test Items Low-temp. storage High-temp. storage Heat shock High-temp. Load Withstand humidity load Withstand flux Solder withstand heat Oscillation Striking Evaluation Should be nothing extraordinary in electrilcal characteristics and appearance before or after the test. Test Conditions -40C 1000hrs. Leave without energizing +85C 1000hrs. Leave without energizing -40C~+125C 30min. Each 100cycle +85C 1000hrs. Rating input, output 3.3V (3A) +40C 90~9%RH 1000hrs. Leave at rating input/ output Leave in IPA for 5min. 260C5C 10sec. And 350C10C for 3sec. 5~10Hz Every amplitude 10mm, 10^55Hz Acceleration 2G (3directions, each for 1 hour) Acceleration 20G (3directions, 3times each), Striking time 116ms 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 |
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