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UC2903 Fiches technique(PDF) 2 Page - Texas Instruments

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No de pièce UC2903
Description  Quad Supply and Line Monitor
Download  16 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC2903 Fiches technique(HTML) 2 Page - Texas Instruments

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DESCRIPTION (CONT.)
CONNECTION DIAGRAMS
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
+VIN
V
(2.5V)
REF
GND
WINDOW ADJUST
SENSE4
INVERT INPUT
SENSE4
G.P.OP-AMP INV.
LINE/SWITCHERSENSE
POWEROK
UVDELAY
UVFAULT
SENSE3
SENSE2
SENSE1
G.P.OP-AMP N.I.
G.P.OP-AMP OUT
OVFAULT
OVDELAY
DIL-18,SOIC-18
JorN,DWPACKAGE
(TOP VIEW)
3
2
1 20 19
18
17
16
15
14
9
11 12 13
10
4
5
6
7
8
WINDOW ADJUST
GND
NC
SENSE4INVERT
INPUT
SENSE4
UVFAULT
UVDELAY
LINE/SWITCHER
SENSE
POWEROK
G.P.OP-AMP OUT
PLCC-20,LCC-20
Q,L PACKAGE
(TOP VIEW)
ABSOLUTE MAXIMUM RATINGS
(1)
UC1903
UC2903
UC3903
SLUS233A – OCTOBER 1999 – REVISED SEPTEMBER 2008 ........................................................................................................................................ www.ti.com
An additional, uncommitted, general purpose op-amp is also included. This op-amp, capable of sourcing 20 mA
of output current, can be used for a number of auxiliary functions including the sensing and amplification of a
feedback error signal when the 2.5-V output is used as a system reference.
These parts operate over an 8-V to 40-V input supply range and require a typical stand-by current of only 7 mA.
over operating free-air temperature range (unless otherwise noted)
VALUE
UNIT
+VIN
Supply Voltage
+40
V
Open Collector Output Voltages.
+40
V
Open Collector Output Currents.
50
mA
Sense 1-4 Input Voltages
–0.3 to +20
V
Line/Switcher Sense Input Voltage
–0.3 to +40
V
Op-Amp and Inverter Input Voltages
–0.3 to +40
V
Op-Amp and Inverter Output Currents .
–40
mA
Window Adjust Voltage.
0.0 to +10
V
Delay Pin Voltages
0.0 to +5
V
Reference Output Current
–40
mA
Power Dissipation at TA = 25°C
(1)
1000
mW
Power Dissipation at TC = 25°C
(1)
2000
mW
Operating Junction Temperature
–55 to +150
°C
Storage Temperature
–65 to +150
C
Lead Temperature (Soldering, 10 Seconds)
300
°C
(1)
Voltages are referenced to ground (Pin 3). Currents are positive into, negative out of, the specified terminals. Consult Packaging Section
of Databook for thermal limitations and considerations of package.
2
Submit Documentation Feedback
Copyright © 1999–2008, Texas Instruments Incorporated
Product Folder Link(s): UC1903 UC2903 UC3903


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