TSM111 데이터 시트보기 (PDF) - STMicroelectronics
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TSM111 Datasheet PDF : 17 Pages
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TSM111
SUPERVISORY CIRCUIT OPERATION
The system power ON/OFF logic is generated by
the PC, which is “Low” in system “On” condition
and “High” when the system is “Off”. This is con-
nected to remote pin 7.
The IC’s internal logic circuit generates a control
signal on pin 6. In normal operation, when there is
no over voltage or over current at the three inputs,
the voltage on pin 6 follows the Remote pin 7 volt-
age, i.e. if the remote pin 7 is low the pin 6 is also
low or vice versa.
When fault is detected on the inputs, control pin 6
goes “High”. This control pin 6 output can be used
to turn off the Mains Power Supply during fault
condition. An optocoupler is connected directly,
with cathode connected to the IC pin 6 and anode
to 5V (from STDBY supply).
In normal operation the voltage on pin 6 is (opto
cathode) is around 3.7 V. On the primary side the
opto transistor collector is pulled through a resistor
to Vref.
It is required to invert the signal before connecting
to the feedback compensation pin 6 of L5991A for
reverse logic. i.e during normal operation the com-
pensation pin is not affected and during fault con-
dition the pin is pulled Low. Slight delay (R34,C32)
is introduced on the primary side to avoid fault turn
on condition.
Note : Once the fault condition is removed, it is required to reset the
Remote pin to make the system function again.
BILL OF MATERIAL
The following are the bill of material for the 90W SMPS :
No
Part Number
ICs
1 L5991A
2 VIPer20 DIP
3 TSM111
4 LM7912CV
5 TL431
MOSFETS
6 STP6NB80
7 STP3020L
Rectifiers
8 BYV10-40
9 BYW100-200
10 STPS20L40CT
11 STSPS10L40CT
12 KAL04
13 1N4148
Transformers / Inductors
12 HM00-98 150
13 HM00-98151
14 HM00-98 148
15 HM50-150K
16 HM11-51502
17 HM28-32022
18 10uH
Connectors
19 AC input conn
20
20-pin conn:
39-02-2200
21 Fann connector
22 Fuse 3.5A
23 NTC
24 TLP621 Optocoupler
25 AC switch
26 115V-23oV selector
Qt Manufacturers
Remarks / Descriptions
1
ST
Advanced PWM Controller
1
ST
Aux controller PWM+Mos
1
ST
Triple Voltage and Current Supervisor
1
ST
-12V Post Regulator
1
ST
Programmable Voltage Reference
1
ST
TO220 6A, 800V Mos
1
ST
TO220 22mohm 33V Mos
1
ST
1A, 40V or BYV10-60 or BYW100-200
3
ST
1A, 100V or 200V, BYW100-100
1
ST
2x10A, 40V or STPS2045CT or
STPS30L40CT
1
ST
2x5A, 40V
1
-
3Amp 400VAC Bridge Rectifier or higher
1
-
1
BI Tech. ** Aux Transformer
1
BI Tech.
Main Transformer
1
BI Tech.
Coupled inductors
1
BI Tech.
15uH inductors - output filter
1
BI Tech.
2.2uH inductors - output filter
1
BI Tech.
Common Mode choke - AC input filter
1
-
10uH inductors - output filter
1
-
1
Molex
20 pin output connector with terminals
Molex 39-00-0038
1
-
1
-
1
Siemens
2.2 ohm
3
Toshiba
100% transfer ratio
1
-
1
-
10/17
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