DC/DC Converter TSI-24 Series 15 Watt Features Step-down Converter with very high Efficiency (> 91%) Input Voltage Range +8 VDC to +27 VDC 1.2 VDC to 5.1 VDC Output, up to 3 A Fast Transient Response Remote ON/OFF Overload Protection Low Output Noise Standby Current only 100 µA Small SIL- or DIP-Package 2 Years Product Warranty This new generation of step-down converters provides designers with a cost-effective solution for converting 8 VDC to 27 VDC voltage down to 1.25 VDC to 5 VDC. To achieve highest efficiency, these dc/dc converters are using adwanced circuit techniques , as amorphous ferrite, solid aluminum capacitors and a synchronous commutation IC. The TSI-24 series needs no further external components to operate within its specifications. A very high efficiency allows operation without additional heatsink. This product finds many applications in distributed powersystems where voltage conversion at the point of load is required. Models Ordercode Input voltage range Output voltage Output current max. Efficiency typ. Package TSI-24-5.0S3R0P TSI-24-5.0S3R0F 8 – 27 VDC * + 3.3 VDC 3000 mA 91.0 % SIP DIP * Output adjustable 1.2 to 5.1 VDC www.tracopower.com Page 1 DC/DC Converter TSI-24 Series 15 Watt Input Specifications Input current (no load) Input current (at full load) 1 mA max. 1350 mA max. (12 Vin) Stand-by current 100 µA typ Output Specifications Output voltage tolerance ± 3.0 % Output voltage adjustment +1.2 VDC to +5.1 VDC Output voltage selection +1.2 Vout +3.3 Vout +5.0 Vout V.ADJ (pin 14) link wire to +Vout (pin 17,18) V.ADJ (pin 14) = open VADJ (pin 14) connected via 20 kOhm resistor to +Vout (pin 17,18) Regulation – Input variation – Load variation 0 – 100 % ± 0.3 % < 3.0 % Ripple and noise (20 MHz Bandwidth) 35 mVpk-pk typ. Transient response time (with 220 µF output cap.) 50 % Load change: Vout over-/undershoot: 80 µsec typ. 70 mV typ. Temperature coefficient ± 0.01 % / °C Short circuit protection >105% constant current Capacitive load 20’000 µF Remote ON/OFF control ON = Pin 5 (ON/OFF Pin) to pin 4 (GND) open OFF = Pin 5 (ON/OFF Pin) to pin 4 (GND) short General Specifications Temperature ranges – Operating – Storage Derating above 50 °C – 10 °C ... +71 °C – 25 °C ... +85 °C 3 % / °C Humidity (non condensing) 30 – 95 % rel H Reliability, calculated MTBF (MIL-HDBK-217 F) >350’000 h at 40 °C Isolation Input/Output none Switching frequency 150 kHz typ. (PWM modulation) Physical Specifications Vibration 5 to 10 Hz amplitude 10 mm pk-pk 10 to 55 Hz acceleration 2 G Shock acceleration 20 G max. time 11 ms Package weight 13 g (0.46 oz) Soldering temperature max. 260°C max. / 10 sec. All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated. www.tracopower.com Page 2 DC/DC Converter TSI-24 Series 15 Watt Outline Dimensions mm (inches) SIP package 0.8 (0.03) 50.8 (2.0) C/L 7.0 (0.28) 19 18 2.542.54 2.542.54 (0.1)(0.1) (0.1)(0.1) (0.1) (0.1)(0.1) (0.1) 3.4 10.16 (0.4) (0.13) 22.86 10.16 (0.9) (0.4) 2.25 (0.09) 2.25 2.54 2.54 2.54 2.54 (0.09) 14 6.0 5 1 (0 .2 3 6 ) 20.5 (0.807) 36 2.0 (0.08) Pin-Out 2.25 (0.09) DIP package 0.8 (0.03) (0.1) (0.1) (0.1) (0.1) (0.1) (0.1) (0.1) (0.1) 3.4 10.1 22.8 10.1 (0.13) (0.4) (0.9) (0.4) (0.1) +V Input (Vcc) 3 –V Input (GND) –V Input (GND) 4 –V Input (GND) –V Input (GND) 5 Remote on/off Remote on/off 14 V Output adj V Output adj 15 -V Output -V Output 16 -V Output -V Output 17 +V Output +V Output 18 +V Output +V Output No function No pin No function No pin (0.6) +V Input (Vcc) 15.24 2 (0.81) 18 2.54 2.54 2.54 2.54 +V Input (Vcc) (0.09) 14 +V Input (Vcc) 36 2.25 5 2.54 2.54 2.54 2.54 (0.28) 1 19 2.6 1 19 7.0 (0.1) SIP 20.5 36 2.5 DIP (0.1) C/L 2.6 50.8 (2.0) Pin 8.0 (0.32) Stand off 2.25 (0.1) 2.5 (0.09) Specifications can be changed without notice www.tracopower.com Page 3 DC/DC Converter TSI-24 Series 15 Watt Connections Normal Connection (Standard) = – 2 C1 2 x 330 µF/35V 18 TSI-24-5.0S3R0 3 –Vout 4 5 17 ON/OFF V Adj. +Vin +Vout C2 Load + +Vout +Vin Value of C2: Vout: 1.2 V...2.1V Vout: 2.1 V...3.1V Vout: 3.1V...5.1V 2 x 330 µF /35V 2 x 220 µF /35V 2 x 150 µF /35V Load 1 Value of C2: Vout: 1.2 V...2.1V Vout: 2.1 V...3.1V Vout: 3.1V...5.1V 2 x 330 µF /35V 2 x 220 µF /35V 2 x 150 µF /35V 15 16 14 Remote ON/OFF Connection 1 + = – 2 C1 2 x 330 µF/35V 18 TSI-24-5.0S3R0 3 4 ON/OFF 5 17 -Vout ON/OFF V Adj. C2 15 16 14 ON = Open OFF = Short Output Voltage Adjustement Connection + = – C1 2 x 330 µF/35V +Vin +Vout 2 3 18 TSI-24-5.0S3R0 ON/OFF Capacitors: C1 ==> SXE series Mfg. Nippon Chemi-Con C2 ==> SH series Mfg. Sanyo OS-CON C2 ==> FH series Mfg. Nippon Chemi-Con C2 VR1 15 -Vout 4 5 17 V Adj. Load 1 Value of C2: Vout: 1.2 V...2.1V Vout: 2.1 V...3.1V Vout: 3.1V...5.1V 2 x 330 µF /35V 2 x 220 µF /35V 2 x 150 µF /35V 16 14 VR1 = 5.1 • (Vout – 1.0) –1.2 VR1 = kOhm Vout = VDC Specifications can be changed without notice Rev. 11/00 Jenatschstrasse 1 • CH-8002 Zurich • Switzerland Tel. +41-1284 2911 • Fax +41-1201 1168 • e-mail: [email protected] • internet: http://www.tracopower.com Page 4