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TD230N Datasheet(PDF) 1 Page - STMicroelectronics

Part # TD230N
Description  ELECTRONIC CIRCUIT BREAKER
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TD230N Datasheet(HTML) 1 Page - STMicroelectronics

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TD230
ELECTRONIC CIRCUIT BREAKER
October 1998
®
.
TWO N-CHANNEL MOSFETs CONTROL AND
DUAL INDEPENDANT CURRENT SUPERVI-
SION FOR OVER CURRENT PROTECTION
.
DUAL SUPPLY OPERATION
.
FROM +3/-5 TO +18/-18V OPERATING VOLT-
AGE
.
STEP-UP CONVERTER : VCC +13.5V OUTPUT
VOLTAGE
.
ADJ U ST ABLE
PR OT EC TI ON
M OD E
(CTRIP1/2)
.
INHIBIT FUNCTION
.
SHUTDOWN OUTPUT STATUS
.
FEW EXTERNAL COMPONENTS
DESCRIPTION
The TD230 is designed to control two N-channel
MOSFETs used as power switches in circuit break-
ing applications.
Its current supervision and immediate action on the
switches ensure high security for the boards and
the supplies thus protected against short-circuit or
over current.
In case of short-circuit or over current detection, the
TD230 immediately switches off the corresponding
MOSFET, thus disconnecting the board from the
supply. After several automatic restart attempts, a
definitive shutdown of the circuit is done if the
shortcircuit or over current persists over an exter-
nally adjustable time, until the TD230 is reset by
temporary INHIBIT signal or temporary switching
off of the power supply (hot disconnection/recon-
nection).
If the board is disconnected from the positive sup-
ply by the TD230 it will automatically be disjoncted
from the negative supply too.
TD230 integrates an induction step-up converter
that provides 13.5V above the positive rail to drive
the high side MOSFET.
1
2
3
4
5
6
7
9
10
11
12
13
14
8
15
16
PVcc
LBOOS T
CBO OST
PM1
GND
PM2
OS CGND
NVcc
REF1
GC1
S ENSP
INHIBIT
SHUTDOWN
SENS N
GC2
REF2
PIN CONNECTIONS
ORDER CODES
Part Number
Temperature
Range
Package
ND
TD230I
-40
oC, +125oC
••
N
DIP16
(Plastic Package)
D
SO16
(Plastic Micropackage)


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