SPX3942T Просмотр технического описания (PDF) - Signal Processing Technologies
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SPX3942T Datasheet PDF : 7 Pages
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ABSOLUTE MAXIMUM RATINGS
Power Dissipation..........................................Internally Limited
Lead Temp. (Soldering, 5 Seconds) ................................ 260°C
Storage Temperature Range .............................. -65° to +150°C
Operating Junction Temperature Range (Note 9)
SPX3940/41/42...................................... -40C° to +125°C
SPX3940/41/42
Input Supply Voltage ................................................... +7.5V
Feedback Input Voltage ..................................-1.5V to +30V
Shutdown Input Voltage..................................-0.3V to +30V
Error Comparator Output ................................-0.3V to +30V
ESD Rating ............................................................ 2KV Min
ELECTRICAL CHARACTERISTICS at VS=±15V,TA=25°C, unless otherwise specified. Boldface applies over the full
operating temperature range.
PARAMETER
CONDITIONS
(Note 2)
Typ.
SPX3940A
Min
Max
SPX3940/41
Min
Max
UNITS
3.3V Version
Output Voltage
All Voltage Options
-40°C ≤TJ ≤+125°C
1mA ≤IL ≤ 1A
3.3
3.267
3.333
3.234
3.366
V
3.3
3.217
3.382
3.185
3.415
Output Voltage
20
100
Temperature Coefficient
(Note 1)
Line Regulation ( Note 3)
6V ≤ VIN ≤30V (Note 4)
20
40
Load Regulation ( Note 3 )
IL = 50mA to 1mA
35
50
80
Output Noise Voltage
BV = 10Hz – 100kHz
150
ppm/°C
60
mV
50
mV
80
µV(rms)
IL = 5mA
150
Ground Current
4.5V<Vin<5.5V
10
15
IL = 5mA
20
15
mA
20
Current Limit
Vin=5V
IL = 1A
VOUT = 0
200
200
110
250
250
1.7
1.2
1.2
A
Thermal Regulation
Dropout Voltage (Note 5)
Adjustable Versions only
Reference Voltage
IL = 1A
IL = 100mA
Reference Voltage
Feedback Pin Bias Current
Over Temperature
(Note 6)
Reference Voltage
Temperature Coefficient
Feedback Pin Bias Current
Temperature Coefficient
(Note 7)
0.05
0.5
110
Typ
1.235
20
50
0.1
0.2
0.2
0.8
0.8
1.0
1.0
150
150
200
200
SPX3940/42
1.200
1.98
1.185
1.270
1.272
1.285
60
80
%/w
V
V
V
nA
ppm/°C
nA/°C
Rev. 12/19/00
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