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UC1904 датащи(PDF) 3 Page - Texas Instruments

номер детали UC1904
подробное описание детали  Precision Quad Supply and Line Monitor
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производитель  TI1 [Texas Instruments]
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UC1904 датащи(HTML) 3 Page - Texas Instruments

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UC1904
UC2904
UC3904
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
OV UV Window, LS Input, OC Input, ARST Input, and ON/OFF Input Thresholds (cont.)
Under-Voltage Thresholds
WADJ = 0.25V, Offset from VREF, Input H to L
-140
-125
-110
mV
S1, S2
WADJ = 0.5V, Offset from VREF, Input H to L
-270
-250
-230
mV
WADJ = 1V, Offset from VREF, Input H to L
-540
-500
-460
mV
Under-Voltage Thresholds
WADJ = 0.25V, Offset from VREF, Input H to L
-150
-125
-110
mV
S3, S4 Positive Mode
WADJ = 0.5V, Offset from VREF, Input H to L
-285
-250
-230
mV
WADJ = 1V, Offset from VREF, Input H to L
-555
-500
-460
mV
OV and UV Threshold Hysteresis As a Function of WADJ
30
50
70
mV/V
S3 Negative Mode Thresholds
Over-Voltage, WADJ = 0.5V, Input H to L
-13.52
-13.2
-12.88
V
Under-Voltage, WADJ = 0.5V, Input L to H
-11.06
-10.8
-10.54
V
Hysteresis, WADJ = 0.5V
80
120
160
mV
S4 Negative Mode Thresholds
Over-Voltage, WADJ = 0.5V, Input H to L
-5.63
-5.5
-5.37
V
Under-Voltage, WADJ = 0.5V, Input L to H
-4.61
-4.5
-4.39
V
Hysteresis, WADJ = 0.5V
30
50
70
mV
WADJ Input Bias Current
0.25V < WADJ <1.0V
-5
5
µA/V
LS Threshold
Input = H to L
1.96
2
2.04
V
Threshold hysteresis
65
100
125
mV
OC Threshold
Input = H to L
1.9
2
2.1
V
Threshold hysteresis
50
100
150
mV
ARST Input Threshold
Input = L to H
2.25
2.5
2.75
V
Input = H to L
0.56
0.625
0.69
V
ON/OFF Input Threshold
Input high level
1.74
2.4
V
Input low level
0.6
1.35
V
Sense and Logic Input Bias Currents
Sense 1-4, Positive Mode
Input = 2.8V
250
800
nA
Input = 2.2V
-1000
-250
nA
Sense 3 Negative Mode
Input = -12V
-700
-500
-300
µA
Sense 4 Negative Mode
Input = -5V
-700
-500
-300
µA
Line, and OC Inputs
Input = 2.2V
300
1000
nA
ON/OFF Input
Input = 2.5V
150
600
nA
ARST Input
Input = 0.5
-2000
-700
nA
Open Collector Outputs (OV/OC Out, PG Out, PWRW Out, ON/OFF Out)
Saturation Voltage
IOUT = 10mA
0.2
0.4
V
Leakage current
VOUT = 20V
5
µA
POR Delay
Delay
160
250
350
ms/
µF
Internal Pullup Current
9
µA
Threshold Low to High
2.25
V
OFF Delay
Delay
120
185
250
ms/
µF
Internal Pullup current
12
µA
Threshold Low to High
2.25
V
OV Fault Delay
Delay
10
20
50
µs
Unless otherwise stated, these specifications hold for TA = 0 to 70
°C for the UC3904, -40 to
+85
°C for the UC2904, and -55 to +125°C for the UC1904, +VIN = 15V, WADJ = 0.5V, Sense
Inputs 1-4, OC and LS Inputs = 2.5V. The ON/OFF Input and the ARST Input = 0V.
ELECTRICAL
CHARACTERISTICS (cont):
3


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