DC/DC Converter
TSI-20 Series
Features
Step-down Converter with very high Efficiency (> 91%) 3.3 VDC or 5.0 VDC Output, up to 6.0 A Fast Transient Response Remote ON/OFF Overload Protection Low Output Noise Standby Current only 100 µA Small SIL- or DIP-Package 2 Year Product Warranty This new generation of step-down converters provides designers with a cost-effective solution for converting a 5 VDC resp. 12 VDC voltage down to 3.3 VDC or 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-20 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.
15/20 Watt
Models
Ordercode TSI-3.3S3R0 TSI-3.3S3R0F TSI-5.0S3R0 TSI-5.0S3R0F TSI-3.3S6R0P TSI-3.3S6R0FP TSI-5.0S4R0P TSI-5.0S4R0FP Input voltage range Output voltage Output current max. Efficiency typ. Package SIP DIP SIP DIP SIP DIP SIP DIP
4.8 – 13.6 VDC
* + 3.3 VDC
3000 mA
91.0 %
6.0 – 16.5 VDC
+ 5.0 VDC
3000 mA
95.0 %
4.8 – 7.5 VDC
* + 3.3 VDC
6000 mA
88.0 %
6.0 – 16.5 VDC
+ 5.0 VDC
4000 mA
92.0 %
* Output adjustable 2.8 to 3.3 VDC
www.tracopower.com
Page 1
DC/DC Converter
TSI-20 Series 15/20 Watt
Input Specifications
Input current (no load) Input current (at full load) Stand-by current 15 Watt models 20 Watt models 15 Watt models 20 Watt models 1 mA max. 1 mA max. 1350 mA max. (12 Vin) 1800 mA max. (12 Vin) 100 µA typ ± 3.0 % +2.8 VDC to +3.3 VDC ± 0.5 % < 2.0 % 50 mVpk-pk typ. 50 % Load change: Vout over-/undershoot: 50 % Load change: Vout over-/undershoot: 80 µsec typ. 70 mV typ. 100 µsec typ. 130 mV typ. ± 0.01 % / °C constant current >105% 20’000 µF ON = Pin 5 (ON/OFF Pin) to pin 4 (GND) open OFF = Pin 5 (ON/OFF Pin) to pin 4 (GND) short – 10 °C ... +70 °C – 25 °C ... +85 °C 3 % / °C 95 % rel H max. 15 Watt models 20 Watt models >400’000 h @ 40 °C >350’000 h @ 40 °C none 190 kHz typ. (PWM modulation) 5 to 10 Hz amplitude 10 mm pk-pk 10 to 55 Hz acceleration 2 G acceleration 20 G max. time 11 ms 10 g (0.35 oz) 13 g (0.46 oz) max. 230°C max. / 10 sec.
Output Specifications
Output voltage tolerance Output voltage adjustment (TSI-3.3S only) Regulation – Input variation – Load variation 0 – 100 % Ripple and noise (20 MHz Bandwidth) Transient response time 15 Watt models (with 220 µF output cap.) 20 Watt models (with 2 x 220 µF output cap.) Temperature coefficient Short circuit protection Capacitive load Remote ON/OFF control
General Specifications
Temperature ranges – Operating – Storage Derating above 50 °C Humidity (non condensing) Reliability, calculated MTBF (MIL-HDBK-217 E) Isolation Input/Output Switching frequency
Physical Specifications
Vibration Shock Package weight 15 Watt models 20 Watt models Soldering temperature
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-20 Series 15/20 Watt
Outline Dimensions mm (inches) SIP package
0.8 (0.03) 50.8 (2.0) 2.0
(0.08)
7.0
(0.28)
36
C/L
19
20.5 (0.807) 6.0
1
2.54 2.54 2.54 2.54
(0.1)(0.1) (0.1)(0.1)
5
14
2.542.54 2.542.54
(0.1) (0.1)(0.1) (0.1)
18
(0 .2 3 6 )
2.25
(0.09)
3.4 10.16
(0.13)
(0.4)
22.86
(0.9)
10.16
(0.4)
(0.025 )
0.64
Pin-Out
Pin DIP +V Input (Vcc) +V Input (Vcc) –V Input (GND) –V Input (GND) Remote on/off V Output adj -V Output -V Output +V Output +V Output No function No function SIP +V Input (Vcc) +V Input (Vcc) –V Input (GND) –V Input (GND) Remote on/off V Output adj -V Output -V Output +V Output +V Output No pin No pin 1 2 3 4
0.64
(0.025)
DIP package
0.8 (0.03) 50.8 (2.0)
(0.1)
5 14 15
2.5
(0.1)
7.0
(0.28)
36
C/L
19
(0.81)
2.6
16 17 18 19 36
2.54 2.54 2.54 2.54
(0.1) (0.1) (0.1) (0.1)
2.54 2.54 2.54 2.54
(0.1) (0.1) (0.1) (0.1)
(0.1)
2.6
1
5
14
18
15.24
20.5
(0.6)
(0.13)
(0.4)
(0.9)
(0.4)
Stand off
(0.32)
8.0
Specifications can be changed without notice www.tracopower.com Page 3
(0.1)
2.5
0.64
3.4
10.1
22.8
10.1
0.64
(0.025)
(0.025 )
DC/DC Converter
TSI-20 Series 15/20 Watt
Connections
Normal Connection (Standard)
1 +Vin +Vout 17 18 C2
470µF/35V
+ = –
100 µ F/35V TSI15 series 220 µ F/35V TSI20 series
3 4 5
TSI 15/20 Watt
–Vout ON/OFF V Adj.
15 16 14
Remote ON/OFF Connection
1 +Vin +Vout 17 18 C2
470µF/35V
+ = –
100 µ F/35V TSI15 series 220 µ F/35V TSI20 series
3 4
TSI 15/20 Watt
15 16 14
-V out
ON/OFF V Adj.
ON/OFF 5 ON = Open OFF = Short
Output Voltage Adjustement Connection (TSI-3.3S only)
1 +Vin +Vout 17 18 C2
470µF/35V
+ = –
100 µ F/35V TSI15 series 220 µ F/35V TSI20 series
3 4 5
TSI 15/20 Watt
-Vout ON/OFF V Adj.
15 16 14
VR1
Capacitors: C1 ==> SXE series Mfg. Chemi-Con C2 ==> SH series Mfg. Sanyo OS-CON
VR1 = kOhm Vout = VDC
VR1 =
3200.83 . 82.07 – 39 • ( Vout –1 195)
Load
C1
2
Load
C1
2
Load
C1
2
–10
Specifications can be changed without notice
Rev. 06/00
Jenatschstrasse 1 • CH-8002 Zurich • Switzerland Tel. +41-1284 2911 • Fax +41-1201 1168 • e-mail: sales@traco.ch
•
internet: http://www.tracopower.com
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