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UC1903N Arkusz danych(PDF) 2 Page - Texas Instruments

Numer części UC1903N
Szczegółowy opis  Quad Supply and Line Monitor
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
Logo TI - Texas Instruments

UC1903N Arkusz danych(HTML) 2 Page - Texas Instruments

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UC1903
UC2903
UC3903
Supply Voltage (+VIN). . . . . . . . . . . . . . . . . . . . . . . . . . . . . +40V
Open Collector Output Voltages. . . . . . . . . . . . . . . . . . . . . +40V
Open Collector Output Currents . . . . . . . . . . . . . . . . . . . . 50mA
Sense 1-4 Input Voltages . . . . . . . . . . . . . . . . . . . -0.3V to +20V
Line/Switcher Sense Input Voltage . . . . . . . . . . . -0.3V to +40V
Op-Amp and Inverter Input Voltages . . . . . . . . . . -0.3V to +40V
Op-Amp and Inverter Output Currents . . . . . . . . . . . . . . -40mA
Window Adjust Voltage. . . . . . . . . . . . . . . . . . . . . 0.0V to +10V
Delay Pin Voltages . . . . . . . . . . . . . . . . . . . . . . . . . 0.0V to +5V
Reference Output Current . . . . . . . . . . . . . . . . . . . . . . . -40mA
Power Dissipation at TA = 25°C (Note 1) . . . . . . . . . . . 1000mW
Power Dissipation at TC = 25°C (Note 1) . . . . . . . . . . . 2000mW
Operating Junction Temperature . . . . . . . . . . . -55°C to +150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . -65°C to +150°C
Lead Temperature (Soldering, 10 Seconds) . . . . . . . . . . 300°C
CONNECTION DIAGRAMS
DIL-18, SOIC-18 (TOP VIEW)
J or N, DW Package
PACKAGE PIN FUNCTION
FUNCTION
PIN
+VIN
1
VREF (2.5V)
2
GROUND
3
GROUND
4
WINDOW ADJUST
5
N/C
6
SENSE 4 INVERT
INPUT
7
SENSE 4
8
SENSE 3
9
SENSE 2
10
SENSE 1
11
OV DELAY
12
OV FAULT
13
UV FAULT
14
UV DELAY
15
POWER OK
16
LINE/SWITCHER
SENSE
17
G.P. OP-AMP OUT
18
G.P. OP-AMP N.I.
19
G.P. OP-AMP INV.
20
PLCC-20, LCC-20
(TOP VIEW)
Q, L Package
ELECTRICAL CHARACTERISTICS: Unless otherwise stated, these specifications apply for TA = –55°C to +125°C for the
UC1903; –40°C to +85°C for the UC2903; and 0°C to +70°C for the UC3903; +VIN =
15V; Sense Inputs (Pins 6–9 and Pin 15) = 2.5V; VPIN 4 = 1.0V, TA = TJ.
PARAMETERS
TEST CONDITIONS
UC1903 / UC2903
UC3903
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
Supply
Input Supply Current
No Faults
7
9
7
11
mA
UV, OV and Line Fault
10
15
10
18
mA
Supply Under Voltage
Threshold (VSUV)
Fault Outputs Enabled
6.0
7.0
7.5
5.5
7.0
8.0
V
Minimum Supply to Enable
Power OK Output
3.0
4.0
3.0
4.0
V
Reference
Output Voltage (VREF)TJ = 25°C
2.485
2.5
2.515
2.470
2.5
2.530
V
Over Temperature
2.465
2.535
2.465
2.535
V
Load Regulation
IL = 0 to 10mA
1
10
1
15
mV
Line Regulation
+VIN = 8 to 40V
1
4
1
8
mV
Short Circuit Current
TJ = 25°C
40
40
mA
Fault Thresholds (Note 4)
OV Threshold Adj.
Offset from VREF as a function of VPIN 4
Input = Low to High, 0.5V
≤ VPIN 4 ≤ 2.5V
.230
.25
.270
.230
.25
.270
V/V
UV Threshold Adj.
Offset from VREF as a function of VPIN 4
Input = High to Low, 0.5V
≤ VPIN 4 ≤ 2.5V
-.270
-.25
-.230
-.270
-.25
-.230
V/V
ABSOLUTE MAXIMUM RATINGS (Note 1)
Note 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


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