TSI40-1210 TRACOPOWER [TRACO Electronic AG], TSI40-1210 Datasheet - Page 3

• Manufacturer Part Number: TSI40-1210
• Description: High Efficiency DC/DC Converter - 40Watt TSI 40 Series
• Manufacturer: TRACOPOWER [TRACO Electronic AG]

This pin is a remote sensing pin so do not keep it open.
Standard Connection Circuit Diagram
Remote Sensing
Adjusting Output Voltage
Output voltage is adjustable in the range of 1.0~3.3V by connecting a resistor between V.ADJ1pin
Resistance value is as the figure mentioned.
+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.
Approximate (+) and (-) to make the loop not big.
Note 1. When adjusting output 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.
+
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.
Note 3. Connect +Vs pin and -Vs pin to the capacitor closer to the load side.
Start initial energizing after checking that the adjustable resistor's lug is in the direction of low voltage.
C 1
S W 1
O p e n = O n
S h o rt = O ff
B SI-3 .3S 1 2 R 0 F
3
4
1
+ V in
V s
-V in
V .A D J 2
O N /O F F
S .G N D
2
B S I-3 .3 S 1 2 R 0 F
TSI 40-1210
R y
1 2
1 2
V .A D J
2
1 1
V R 1
R x
V .A D J
1
V .A D J 1
ＶＲ１
R e s is ta n c e fo r a d ju s ta b le o u tp u t
(O p e n w h e n ３ .３ Ｖ o u t p u t)
1 1
-V o u t
+ V o u t
-V s
+ V s
9
8
7
6
C 2
P o in t A
P o in t B
Load
9
8
7
6
L o a d
+ V o u t
+ V s
-V o u t
-V s
-
-
Additional Capacitor
C1 selection
Add 2 or more C1=68 µF or more, ESR=34 mOhm or below in parallel.
Recommended Capacitor: 20SP68M (Sanyo)×2pcs,
C2
{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,
{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,
ESR Frequency of the above additional capacitor: 100KHz~300KHz
selection
V R 1 =
or 20SH100M (Sanyo)×2pcs
or 10SH220M (Sanyo)×2pcs
or 6SH330M (Sanyo)×3pcs
Resistance values when adjusting
output voltage (Equation 1)
(
Vo= Requested output V
Rx=22.56k ohm
Ry=8.2k ohm
Vs=0.8V
11Pin
R x× V s - R y
R x × R y
) and
V.ADJ2 pin
Model TSI 40-1210
1 .1
V o
1 .1
V o
(
- 0 .8
12Pin
- 0 .8
).
3