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參數(shù)資料
| 型號(hào)： | TSM111 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TRIPLE VOLTAGE AND CURRENT SUPERVISOR |
| 中文描述： | 三電壓及目前的上司 |
| 文件頁(yè)數(shù)： | 15/18頁(yè) |
| 文件大?。?/td> | 154K |
| 代理商： | TSM111 |
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loadscharging)areblankedfor atimedependingon
eachapplication.
When thesystemhas latched (eitherafter overcur-
rent or overvoltagecondition), thesystem needsto
bereset viatheRemote input.The C2capacitorde-
terminestwo differenttimings to the Fault output:
C2=100nF=> Trem1(ON to OFF)=8ms
C2=100nF=> Trem2(OFF to ON)=24ms
R5 is a pull down resistor on the remote pin of
TSM111.Note thatan integratedpull up resistor of
100k
is to be taken into account in the choice of
R5, knowing that the thresholdvoltage of the input
comparatoris 1.4V. Therefore, R5 shouldbe lower
than38.8k
.
R5 = 1k
is agood value.
The evaluation board integrates the possibility to
maketheRemotesignaleithermanual,orelectronic
thanksto the ORingdiodesD5 andD6 (andthepull
down resistor R5), and the Push Button (SW1).
These diodes can of course be replacedby straps
according to the evaluationrequirements (manual
or electronic).
The Tpor delay time allows the PG output (Power
Good) to rise to high level when the 5V power line
internal supervision circuitry has stayed above the
undervoltage 4.3V threshold for more than Tpor
time following the approximatedequation6 :
C3 x Vth = Ic x Tpor
whereVth is 2V and Ic is 20
μ
A.
C3=2.2
μ
F => Tpor=300ms
When the 5Vpower linepasses underthe4.3V un-
dervoltage threshold, the Power Good signal (PG)
falls immediately to low level.
ThePowerGoodoutputcanalsobetriggeredbythe
Vdet input of the board. This input should be con-
nected to a power line representative of the AC
mainspowersituation.Asanexample,anadditional
windingon the auxiliary powersupplyofferan early
warningof power downfromthemains powerpoint
of view. The UV threshold is internally fixed to
Vdet=1.26V. Therefore, it is necessary to add a
zenerdiodeD1.
D1=15Vzener=> Vdet=16.26V
Note that a 20k
serial pull down resistor is inte-
grated. Therefore, only a low power zener is
needed.
eq6
The Faultoutputneedsa pullup resistor R6.
The Power Good output needs a pull up resistor
R11. Both signals are pulled up to the 5Vstandby
power supply which can be generated from the
evaluation board thanks to a 78L05 5V regulator.
ThisregulatorneedsaC6bypasscapacitor.TheC7
bypass capacitor smoothens the V
CC
pin of
TSM111.
TheAdj(Adjust)pinshouldbeconnectedtoground.
Adjust allows to tune a new overvoltageprotection
value (ex2.7V insteadof 3.3V).
Exampleof component lists
Table 1 gives an example of componentlist
Name
U1
U2
R1
Type
Value
TSM111
78L05
10m
5m
2.5m
10m
5m
2.5m
65m
13m
6.5m
33k
1k
47k
depends on opto used
10k
comp. network to
be fine tuned
depends on opto used
10k
comp. network to
be fine tuned
47k
15V
1N4148
1N4148
4.7
μ
F
100nF
2.2
μ
F
10NF comp. network to
be fine tuned
10NF comp. network to
be fine tuned
100nF
10
μ
F
Comment
DIP20
TO92
5A
10A
20A
5A
10A
20A
1A
5A
10A
IC
IC
R 1/4W
R 1/2W
R 1W
R 1/4W
R 1/2W
R 1W
R 1/4W
R 1/2W
R 1W
R 1/4W
R 1/4W
R 1/4W
R 1/4W
R 1/4W
R2
R3
R4
R5
R6
R7
R8
R9
R10
R 1/4W
R 1/4W
R11
D1
D5
D6
C1
C2
C3
C4
R 1/4W
Z 1/4W
D 1/4W
D 1/4W
C Electro
C Plastic
C Electro
C Plastic
C5
C Plastic
C6
C7
Figures2a and 2b show thecopperand silkscreen
sidesof the EvaluationboardPCB.
Note that it is not a 1/1 scale.
C Plastic
C Electro
TSM111
15/18
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TSM111CD | TRIPLE VOLTAGE AND CURRENT SUPERVISOR |
| TSM111CN | TRIPLE VOLTAGE AND CURRENT SUPERVISOR |
| TSM111D | TRIPLE VOLTAGE AND CURRENT SUPERVISOR |
| TSM111N | TRIPLE VOLTAGE AND CURRENT SUPERVISOR |
| TSM112D | 3.3V 5V 12V HOUSEKEEPING IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSM111_03 | 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:TRIPLE VOLTAGE AND CURRENT SUPERVISOR |
| TSM-111-01-F-DH-A | 制造商:Samtec Inc 功能描述:CONN UNSHRD HDR HDR 22 POS 2.54MM SLDR RA SMD - Bulk |
| TSM-111-01-F-DV | 制造商:Samtec Inc 功能描述:.025 SQ. TERMINAL STRIPS - Bulk |
| TSM-111-01-F-DV-A | 制造商:Samtec Inc 功能描述:CONN UNSHRD HDR HDR 22 POS 2.54MM SLDR ST SMD - Bulk |
| TSM-111-01-F-DV-P-TR | 制造商:Samtec Inc 功能描述:.025 SQ. TERMINAL STRIPS - Tape and Reel |
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