High Efficiency DC/DC Converter
40Watt TSI 40 Series
TSI 40 Series are ultra small size, light, and large capacity non-isolated type step-down DC-DC converters, which have
ultra high efficiency (93~95%) by using the latest synchronous rectification circuit technology. They can supply 40W
output power without an additional heat sink.
Input: +5V to +12V Output: +3.3V, 12A (+1.0V~+3.3V)
Input :
+12V Output: +5.0V, 8A (+5.0V~+6.0V)
Features
- Thin, Ultra Small Size
- ON/OFF Control
- Output Voltage +1.0~+3.3V/ +5V~+6V
- Output Current 0~12A/ 0~8A
- Remote Sensing
- Over-Current Protection
- Input/Output Non-Isolated Type
- Adjustable Output
- Ultra High Efficiency 93%~95%
- Wide Operating Temp. Range -10°C~+70°C
- MTBF 900,000Hrs, All products received aging
- No Heat Sink required
- Wide Input Voltage Range
- High Reliability , Long Life, High Performance
Models
Standard Input Input Voltage Standard Output Adjustable
Output
Current
Non-Load
Current
mA(typ)
90
Ripple &
Noise
Efficiency
Voltage
Vdc
Range
Voltage
Vdc
Output Range
Vdc~Vdc
Vdc~Vdc
A
mVpp(typ)
40
(typ)
93
TSI 40-1210
TSI 40-1211
5/12
12
+4.5 ~ 13.6
+8.0 ~ 13.6 (*2)
+3.3
+5.0
+1.0 ~ 3.3
+5.0 ~ 6.0
12 max.(*1)
8 max. (*1)
60
60
95
(*1) Input Voltage will become max output by air cooling method (natural or compulsory air cooling). Please refer to thermal derating graph.
(*2) When the voltage between the converter's output pin is 5.3V or below, operating is capable from input +7V. But only at
input between +7~+8V, max output current at 7A.
Specification
Standard Output
When it is open between 11pin 12pin, output voltage will be set at +3.3V or +5V.
(The accuracy of output V setting is ±4% max.)
Adjustable Output V Range Output Voltage is adjustable according to the range above.
Line Reg.
Load Reg.
8mVtyp. (For 0~100% of Load Reg., at Rating Input
Temp. Reg.
Ripple & Noise
Efficiency
Refer Table 1 (Rating Input, Rating output, Room Temp.) Measurements Frequency Band Width 20MHz)
93%~95% (Rating Input/ Output, Room Temp., Refer Table 1
Over-Current Protection
Over-Voltage Protection
Standby Current
Operates at 105% or more Rating Load Current, auto recovery type. Avoid lomg time of short-circuit condition.
None
TSI 40-1210
TSI 40-1211
3mAmax. (Vin=5.5V), 6mAmax.(Vin=13.6V)
100 µAmax.
Remote ON/OFF
Remote Sensing
Between 1pin(ON/OFF) 2pin(S.GND [Open: Output ON, Short: Output OFF (Refer to application)]
TSI 40-1210
The voltage between the 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. (*1)
The voltage between the converter's output pin voltage between 7-8pin] and sensing voltage
TSI 40-1211
900,000Hr min. (EIAJ RCR-9102)
MTBF
Switching Frequency
Operating Temp. Range
Storage Temp. Range
Humidity Range
Cooling Condition
Vibrations
220KHz typ. (TSI 040-1210), 270KHz typ. (TSI 40-1211)
Storage Temp. -20°C~+85°C
95%R.Hmax.
Output current will change by the input voltage. Refer to the thermal derating graph.
5~10Hz Every amplitude 10mm (3directions, each for 1hour), 10~55Hz acceleration 2G (3directions, each for 1hour
Acceleration 20G 3directions, 3times each ,
Shock
Weight
14g typ.
External dimensions
W=24.9 L=50.0 H=10.0 typ (mm) (For detail dimensions refer the outline.)
(*1) When input is +5.5V or below and voltage between output pin is 3.40V~3.63V, mass output current will be 11A.
(*2) When the voltage between converter's output pin is 5.3V or more, max output current will be 7A.
The above specification will be provided at rating value, when there is no specified condition described.
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