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參數(shù)資料
| 型號： | UC1903N |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quad Supply and Line Monitor |
| 中文描述： | 四供應(yīng)及在線監(jiān)測 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 477K |
| 代理商： | UC1903N |
UC1903
UC2903
UC3903
Supply Voltage (+V
IN
). . . . . . . . . . . . . . . . . . . . . . . . . . . . . +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 T
A
= 25°C (Note 1) . . . . . . . . . . . 1000mW
Power Dissipation at T
C
= 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
PLCC-20, LCC-20
(TOP VIEW)
Q, L Package
DIL-18, SOIC-18 (TOP VIEW)
J or N, DW Package
PACKAGE PIN FUNCTION
FUNCTION
+VIN
V
REF
(2.5V)
GROUND
GROUND
WINDOW ADJUST
N/C
SENSE 4 INVERT
INPUT
SENSE 4
SENSE 3
SENSE 2
SENSE 1
OV DELAY
OV FAULT
UV FAULT
UV DELAY
POWER OK
LINE/SWITCHER
SENSE
G.P. OP-AMP OUT
G.P. OP-AMP N.I.
G.P. OP-AMP INV.
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
ELECTRICAL CHARACTERISTICS:
Unless otherwise stated, these specifications apply for T
A
= –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; +V
IN
=
15V; Sense Inputs (Pins 6–9 and Pin 15) = 2.5V; V
PIN 4
= 1.0V, T
A
= T
J.
PARAMETERS
TEST CONDITIONS
UC1903 / UC2903
MIN
TYP
UC3903
TYP
UNITS
MAX
MIN
MAX
Supply
Input Supply Current
No Faults
UV, OV and Line Fault
Fault Outputs Enabled
7
9
7
11
18
8.0
mA
mA
V
10
7.0
15
7.5
10
7.0
Supply Under Voltage
Threshold (V
SUV
)
Minimum Supply to Enable
Power OK Output
Reference
Output Voltage (V
REF
)
6.0
5.5
3.0
4.0
3.0
4.0
V
T
J
= 25°C
Over Temperature
I
L
= 0 to 10mA
+V
IN
= 8 to 40V
T
J
= 25°C
2.485
2.465
2.5
2.515
2.535
10
4
2.470
2.465
2.5
2.530
2.535
15
8
V
V
Load Regulation
Line Regulation
Short Circuit Current
Fault Thresholds
(Note 4)
OV Threshold Adj.
1
1
1
1
mV
mV
mA
40
40
Offset from V
REF
as a function of V
PIN 4
Input = Low to High, 0.5V
≤
V
PIN 4
≤
2.5V
Offset from V
REF
as a function of V
PIN 4
Input = High to Low, 0.5V
≤
V
PIN 4
≤
2.5V
.230
.25
.270
.230
.25
.270
V/V
UV Threshold Adj.
-.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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