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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 +12V Input :
Features
- Thin, Ultra Small Size
Output: +3.3V, 12A (+1.0V~+3.3V) Output: +5.0V, 8A (+5.0V~+6.0V)
- ON/OFF Control - Remote Sensing - Over-Current Protection - Input/Output Non-Isolated Type - Adjustable Output - Wide Input Voltage Range
- Output Voltage +1.0~+3.3V/ +5V~+6V - Output Current 0~12A/ 0~8A - Ultra High Efficiency 93%~95% - Wide Operating Temp. Range -10°C~+70°C - MTBF 900,000Hrs, All products received aging - No Heat Sink required - High Reliability , Long Life, High Performance
Models
Standard Input Voltage
Input Voltage Range
Standard Output Voltage
Adjustable Output Range
Output Current
Non-Load Current
Ripple & Noise
Efficiency
Vdc TSI 40-1210 TSI 40-1211 5/12 12
Vdc~Vdc +4.5 ~ 13.6 +8.0 ~ 13.6 (*2)
Vdc +3.3 +5.0
Vdc~Vdc +1.0 ~ 3.3 +5.0 ~ 6.0
A 12 max.(*1) 8 max. (*1)
mA(typ) 90 60
mVpp(typ) 40 60
(typ) 93 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 Line Reg. Load Reg. Temp. Reg. Ripple & Noise Efficiency Over-Current Protection Over-Voltage Protection Standby Current Refer Table 1 (Rating Input, Rating output, Room Temp.) Measurements Frequency Band Width 20MHz) 93%~95% (Rating Input/ Output, Room Temp., Refer Table 1 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 Remote ON/OFF Remote Sensing 3mAmax. (Vin=5.5V), 6mAmax.(Vin=13.6V) 100 µAmax. 8mVtyp. (For 0~100% of Load Reg., at Rating Input Output Voltage is adjustable according to the range above.
Between 1pin(ON/OFF) 2pin(S.GND [Open: Output ON, Short: Output OFF (Refer to application)] TSI 40-1210 TSI 40-1211 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
MTBF
Switching Frequency Operating Temp. Range Storage Temp. Range Humidity Range Cooling Condition Vibrations Shock Weight External dimensions
900,000Hr min. (EIAJ RCR-9102) 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 , 14g typ. 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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Model TSI 40-1210
Outline
5 1 .0 m a x
C /L t1 .0 8
Lo t.No .
1 0 .7 m a x
3.0
25.9 m ax
12
11
10
3 .3S 12F
9
7
6 2 0 .3 2 C /L
1
2
3
4
5
(Stand off )
1.0 dia. 0.8 2.0
5.54
2.0 5.08 5.08 1.27 5.08 7.62 12 .7 7.62
3.0
p in 1 2 3 4 5 6 7 8 9 10 11 12
F un ctio n O N /O FF S .G N D +V in -V in NC -V s -V o u t +V o u t +V s NC V .A D J 1 V .A D J 2
0.8
5 . 54
3.0
Dimensions: m m Dimension difference with nothing specified ±0.5 Weight: 14g typ
1.0 d ia .
Block Diagram
9 +Vs +Vin 3 FET1 8 +Vout
+
+ C o n tro l
Load
C1 -Vin 4 2
C2 C3 FET2 7 V.ADJ 2 12 V.ADJ 1 11 V.ADJ Open = 3.3V 6 -Vs -Vout
ON/OFF
1
SW1 ON = Open OFF = Short
(0 to 0.5V )
Thermal Derating Naturall a ir c oo ling N a tura convection
12 11 10 9 8 7 6 5 4 3 2 1 0 -1 0 20 30 40 50 60 70 V in = 4.5V ~5.5V V in = 13.6V
Forced lsory air co olin g (1.5m /s) Co m pu air cooling (1.5m/s)
12 11
Vo ut = 3 .3 V O u tp u t C u rre n t [A ]
V ou t = 3.3 V
O utpu t C u rre[t ] nA
10 9 8 7 6 5 4 3 2 1 0 -1 0 20 30 40 50 60 70 V in = 1 3 .6 V V in = 4 .5 V ~ 5 .5 V
A m bie n t T em p . [ C ]
Am bien t T em p .[ C]
Vout: Voltage between output pin (voltage between 7-8pin ) Note: Please refer to the above thermal derating graph when designing, and contact us if there are any questions.
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Model TSI 40-1210
Standard Connection Circuit Diagram
Additional Capacitor
- C1 selection
3 + C1 4 1
-V in O N /O F F S .G N D V .A D J V .A D J 2 1 -V o u t -V s +Vs + V in +Vout
9 8 C2 7 6
P o in t A
B S I-3 .3 S 1 2 R 0 F TSI 40-1210
Load
-
P o in t B VR1 R e s is ta n c e fo r a d ju s ta b le o u tp u t .V (O p e n w h e n 3 3 o u t p u t)
2 SW 1 O pen = O n S h o rt = O ff
12
11
Add 2 or more C1=68 µF or more, ESR=34 mOhm or below in parallel. Recommended Capacitor: 20SP68M (Sanyo)×2pcs, or 20SH100M (Sanyo)×2pcs C2 selection {When Output Voltage is 1.7V or more} Add 2 or more C2=220 µF or more, ESR=28 mOhm or below in parallel. Recommended Capacitor: 6SP220M (Sanyo)×2pcs, or 10SH220M (Sanyo)×2pcs {When Output Voltage is below 1.7V} Add 3 or more C2=330 µFor more, ESR=25 mOhm or below in parallel. Recommended Capacitor: 4SP330M (Sanyo)×3pcs, or 6SH330M (Sanyo)×3pcs ESR Frequency of the above additional capacitor: 100KHz~300KHz
Note 1. This product can be effected by contacting resistor, so do not use a connector, and solder directly to the print board. Note 2. For C1, C2 approximate the converter's pin as much as possible, and wire with a bold pattern. Approximate (+) and (-) to make the loop not big. Note 3. Connect +Vs pin and -Vs pin to the capacitor closer to the load side. This pin is a remote sensing pin so do not keep it open.
Remote Sensing
+Vs pin and -Vs pin are remote sensing pins. The connecting point of sensing line and output line will be the output setting voltage. (Between A-B of above figure) By this function, the voltage drop at the output line can be corrected. As much as A point and B point gets closer to the load side, Vout (voltage between 7-8pin) will become higher than the output setting voltage.
Adjusting Output Voltage
Output voltage is adjustable in the range of 1.0~3.3V by connecting a resistor between V.ADJ1pin (11Pin) and V.ADJ2 pin (12Pin). Resistance value is as the figure mentioned.
9 +V s B SI-3 .3S 1 2 R 0 F 8 +V out
Resistance values when adjusting output voltage (Equation 1)
V R 1=
Rx
Vs
Lo ad
Ry
1 .1 Vo R x× V s - R y 1 .1
R x×R y
Vo
- 0 .8 - 0 .8
7 12 V .A D J 2 VR1 11 V .A D J 1 6
-V o u t -V s
Vo= Requested output V Rx=22.56k ohm Ry=8.2k ohm Vs=0.8V
Note 1. When adjusting output voltage Start initial energizing after checking that the adjustable resistor's lug is in the direction of low voltage. Note 2. Recommend fixed resistor when mass production. Note 3. Wire between V.ADJ1-V.ADJ2 pin short as much as possible. Note 4. Without a resistor between V.ADJ1-V.ADJ2 pin, rating output voltage will be +3.3V.
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Model TSI 40-1210
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.
- Method of ON/OFF Control
Between ON/OFF pin (1Pin ) and S.GND (2Pin ) Open (Max. 6V) will be generated Output=ON Short (0~0.5V 500µA max.) Output=OFF Max. Rating Voltage of ON/OFF pin (1Pin ): -0.3V~+6V
or
+ V in 3 O N /O F F 1
B S I- 3 .3 S 1 2 R 0 F
5V 470 ohm 0 .1 µ F
C on tr ol C i rcui t
S .G N D 2 -V in 4
Reverse Input Voltage Protection
FU S E +V i n
3
Vi n D1 C1
9 8
+V s
+V o ut
BTSI3 . 3 S 1 2 R 0 F S I- 40-1210 3
C2 -V o ut -V s V. DJ 1 A V. DJ 2 A
L oad
-V i n O N /O FF S. ND G
4 1 2
7 6 11 12
This product is a non-isolated type DC-DC converter. 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 left figure. The left figure is an example using huse and diode.
Over-Voltage Protection
TSI-40 series 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.
FU S E
+ V in SCR + V in C1
+V out +Vs BTSI 40 SI 40W S eries -V s -V o u t
C2
O ve rV o ltag e d e te ctio n c ir cu it
Load
Note:
When it is damaged at over-voltage mode, ON/OFF control does not operate.
-V in
V .A D J 1 V .A D J 2
Soldering Conditions
Solder under the following conditions. 1. With soldering iron 2. With soldering dip
340°C~360°C 240°C~260°C
within 5sec. within 10sec.
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e
Model TSI 40-1211
Outline
5 1 .0 m a x
C /L t1 .0 8
Lot.No.
1 0 .7 m a x
3 .0
25 .9 m ax
12
11
10
5.0S8F
9
7
6 2 0 .32 C /L
1
2
3
4
5
³0 ƒ 1.
(Stand off )
3 .0
0. 8
p in 1 2 3 4 5 6 7 8 9 10 11 12
F u n c tio n O N /O F F S .G N D + V in -V in NC -V s -V o u t +Vout +Vs NC V .A D J 1 V .A D J 2
0 .8
5. 54 2. 0
5 .5 4
2 .0 5 .0 8 5 .0 8 1 .2 7 5 .0 8 7 .6 2 1 2 .7 7 .6 2
3. 0
Dimensions: m m Pin type Dimension difference with nothing specified ±0.5
1 .0 d ia .
Weight: 14g typ
Block Diagram
9 +Vs +Vin 3 FET1 8 +Vout
+
+ Control
Load
C1 -Vin 4 2 ON/OFF
C2 C3 FET2 7 V.ADJ 2 V.ADJ 1 11 V.ADJ Open = 5.0V 6 -Vs -Vout
1
SW1 ON = Open OFF = Short
(0 to 0.5V)
12
Thermal Derating
V ou t = 5 .0V ~ 5 .3 V
8 8
Vout = 5 .3 V ~ 6.1 V Output C urrent [A]
O utput C urrent [A ]
7 6 5 4 3 2 1 0 -10 20 30 40 50 60 70
Na tural a ir c ooling Com p u ls ory a ir co o ling (1.5m /s )
7 6 5 4 3 2 1 0 -10 20 30 40 50 60 70
Natura l air cooling Com pulsory air cooling (1 .5m /s)
A m b ie n t T em p [°C ]
Am bie nt T em p . [°C ]
Vout: Voltage between output pin (voltage between 7-8pin) 5
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Model TSI 40-1211
Standard Connection Circuit Diagram
Additional Capacitor
3 + C1 4 1
-V in O N/OF F S .GN D V .AD J2 V .AD J1 + Vs + V in + Vout
9 8 C2
P o in t A
B S I-540-1211 TSI .0 S 8 R 0 F
-V o u t -V s
Add 1 or more C1=68 µFor more, ESR=34 mOhm or below. Recommended Capacitor: 20SP68M (Sanyo)×1pcs, or 20SH100M (Sanyo)×1pcs Add 1 or more C2=150 µF or more, ESR=30 mOhm or below. Recommended Capacitor: 10SP180M (Sanyo)×1pcs, or 10SH220M (Sanyo)×1pcs ESR Frequency of theadditional capacitor: 100KHz~300KHz
7 6
Lo ad
P o in t B
2 SW 1 O pen = O n S h o rt = O ff
12
11
VR1 R e si sta n c e fo r a d ju sta b l e o u tp u t O ( p e n w h e n 5 .0 V o u tp u t )
Note 1. This product can be effected by contacting resistor, so do not use a connector, and solder directly to the print board. Note 2. For C1, C2 approximate the converter's pin as much as possible, and wire with a bold pattern. Approximate (+) and (-) to make the loop not big. Note 3. Connect +Vs pin and -Vs pin to the capacitor closer to the load side. This pin is a remote sensing pin so do not keep it open.
Remote Sensing
+Vs pin and -Vs pin are remote sensing pins. The connecting point of sensing line and output line will be the output setting voltage. (Between A-B of above figure) By this function, the voltage drop at the output line can be corrected. As much as A point and B point gets closer to the load side, Vout (voltage between 7-8pin) will become higher than the output setting voltage.
Output Voltage Adjustment
Output voltage is adjustable in the range of 5.0~6.0V by connecting a resistor between V.ADJ1pin (11Pin) and V.ADJ2 pin (12Pin). Resistance value is as the figure mentioned. Resistance figures when adjusting output voltage (Equation 2) 9 +Vs B SI-5 .0S 8 R 0 F 8 +V o ut
Rx
Vs
Load
VR1=
Ry
0 .8 × R x × R y 1 3 × V o × R y ー0 .8 ( R x + R y ) 22
Vo=Requested output Voltage Rx=22.1k ohm Ry=8.2kohm Vs=0.8V
7 12 V .A D J 2 VR1 11 V .A D J 1 6
-V o u t -V s
Note 1. Be sure not to make the Vout(voltage between 7-8pin) over 6.1V. Note 2. When adjusting output voltage Start initial energizing after checking that the adjustable resistor's lug is in the direction of low voltage. Note 3. Recommend fixed resistor when mass production. Note 4. Wire between V.ADJ1-V.ADJ2 pin short as much as possible. Note 5. Without a resistor between V.ADJ1-V.ADJ2 pin, rating output voltage will be +5.0V.
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