Datasheet TSI-5.0S2ROFM, TSI-3.3S2ROM, TSI-3.3S2ROSM, TSI-3.3S2ROFM, TSI-5.0S2ROSM Datasheet (TRACO)
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Features
DC/DC Converter
TSI-10 Series 10 Watt
Step-down Switching Regulator with very
high Efficiency (>92%)
1.8 – 3.3 VDC or 5.0 VDC Output,
up to 2.0 A
Remote ON/OFF
Overload Protection
Low Output Noise
Standby Current only 100 µA
Small SIL-, DIP- or SMD-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 1.8 – 3.3 VDC or to 5 VDC. To achieve highest efficiency, these dc/dc
converters are using newest technologies , as amorphous ferrite, solid
aluminum capacitors and a synchronous commutation IC.
The TSI-10 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 an
advantage.
Models
Ordercode Input voltage range Output voltage Output current max. Efficiency typ. Package
TSI-3.3S2R0M SIP
TSI-3.3S2R0FM 4.75 – 13.6 VDC * + 3.3 VDC 2000 mA 92.0 % DIP
TSI-3.3S2R0SM SMD
TSI-5.0S2R0M SIP
TSI-5.0S2R0FM 6.0 – 16.5 VDC ** + 5.0 VDC 2000 mA 93.0 % DIP
TSI-5.0S2R0SM SMD
*
Output adjustable 1.8 to 3.3 VDC
** Output adjustable 3.0 to 5.0 VDC
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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
Input Specifications
Input current (no load) all models 2 mA max.
Input current (at full load) TSI-3.3S2 models 1410 mA max. (5 Vin)
TSI-5.0S2 models 890 mA max. (12 Vin)
Stand-by current 100 µA max.
Output Specifications
Voltage adjustment TSI-3.3S2 models +1.8 VDC to +3.3 VDC
TSI-5.0S2 models +3.0 VDC to +5.0 VDC
Regulation – Input variation ± 0.5 %
– Load variation 0 – 100 % < 1.5 %
Ripple and noise (20 MHz Bandwidth) 50 mVpk-pk max.
Transient response time TSI-3.3S2 models 50% Load change: 100 µsec typ.
V out over-/undershoot: 70 mV typ.
TSI-5.0S2 models 50% Load change: 100 µsec typ.
V out over-/undershoot: 80 mV typ.
Temperature coefficient ± 0.01 % / °C
Short circuit protection constant current >105%
Remote ON/OFF control ON=Pin 1 (ON/OFF Pin) to pin 3 (GND) open
OFF=Pin 1 (ON/OFF Pin) to pin 3 (GND) short
General Specifications
Temperature ranges – Operating –25 °C ... +70 °C
– Storage –25 °C ... +85 °C
Derating above 50°C 3 % / °C
Humidity (non condensing) 95 % rel H max.
Reliability , calculated MTBF (MIL-HDBK-217E) > 1’000’000 h @ 50 °C
Isolation Input/Output none
Switching frequency 200 kHz typ. (PWM modulation)
Physical Specifications
Vibr a ti o n 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 6 g
Soldering temperature max. 235°C max. / 10 sec.
DC/DC Conver ter
TSI-10 Series 10 Watt
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Specifications can be changed without notice
Outline Dimensions mm (inches)
DIP package
SIP package
Pin-Out
Pin DIP SIP
1 Remote on/off Remote on/off
2 +V Input (Vcc) +V Input (Vcc)
3 –V Input (GND) –V Input (GND)
4 +V Output +V Output
5 V Output adj V Output adj
6 No function No pin
7 No function No pin
DC/DC Conver ter
TSI-10 Series 10 Watt
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Specifications can be changed without notice
Outline Dimensions mm (inches)
Solder Pad
SMD package
Pin-Out
Pin SMD
1 Remote on/off
2 +V Input (Vcc)
3 –V Input (GND)
4 +V Output
5 V Output adj
6 No function
7 No function
DC/DC Conver ter
TSI-10 Series 10 Watt
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Specifications can be changed without notice
Connections
Jenatschstrasse 1 • CH-8002 Zurich • Switzerland
Tel. + 41-1284 2911 • Fax +41-1201 1168 • e-mail: sales@traco.ch • internet: http://www.tracopower.com
Rev. 10/00
Output Voltage Adjustement Connection
+Vout
TSI 10 Watt
V Adj.
TSI 10 Watt
TSI 10 Watt
Rx · 1.195 - 1200 · (Vo - 1.195)
100µF/25V
C1
Rx · 1200 · (Vo - 1.195)
=
-
VR1 =
+
+Vin
ON/OFF
1
2
3
GND
100µF/25V
Normal Connection (Standard)
C1
Remote ON/OFF Connection
100µF/25V
C1
=
-
+
+
-
=
2
1
ON/OFF
GND
3
+Vin
2
1
3
GND
ON/OFF
+Vin
100µF-200µF/25V
TSI-3.3SxROx ==> Rx = 2130 Ohm
Output Voltage = 1.8 - 3.3VDC
TSI-5.0SxROFx ==> Rx = 3840 Ohm
Output Voltage = 3.0 - 5.0VDC
5
4
VR1
C2
Load
2.2µF-4.7µF/25V
2.2µF-4.7µF/25V
V Adj.
5
+Vout
4
C2
5
V Adj.
+Vout
4
C2
Load
Load
Vo = adjusted ooutput voltage
DC/DC Conver ter
TSI-10 Series 10 Watt
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