LM2940 Ver la hoja de datos (PDF) - Unisonic Technologies
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Fabricante
LM2940 Datasheet PDF : 12 Pages
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LM2940
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
For LM2940-6.0V
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
Line Regulation
Load Regulation
VOUT
△VOUT
△VOUT
7.5V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
VOUT+2V ≤ VIN ≤ 26V, IOUT=5mA
50mA ≤ IOUT ≤ 1A
Output Impedance
ROUT 100 mA DC and 20mARMS, fO=120Hz
Quiescent Current
IQ
VOUT+2V ≤ VIN ≤ 26V, IOUT=5mA
Output Noise Voltage
eN 10Hz-100kHz, IOUT=5mA
Ripple Rejection
RR fO=120Hz, 1VRMS, IOUT=100mA
Long Term Stability
Dropout Voltage
VD
IOUT=1A
IOUT=100mA
Short Circuit Current
ISC (Note)
Maximum Line Transient
TIN ROUT=100Ω, T ≤ 100ms
Reverse Polarity DC Input Voltage VRIN ROUT=100Ω
Reverse Polarity Transient Input
Voltage
VTRRI ROUT=100Ω, T ≤ 100ms
For LM2940-8.0V
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
Line regulation
Load Regulation
VOUT
△VOUT
△VOUT
9.4V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
VOUT +2V ≤ VIN ≤ 26V, IOUT=5mA
50mA ≤ IOUT ≤1A
Output Impedance
ROUT 100 mA DC and 20mARMS, fO=120Hz
Quiescent Current
IQ
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
Output Noise Voltage
eN 10Hz-100kHz, IOUT =5mA
Ripple Rejection
RR fO=120Hz, 1VRMS, IOUT =100mA
Long Term Stability
Dropout Voltage
VD
IOUT =1A
IOUT =100mA
Short Circuit Current
ISC (Note)
Maximum Line Transient
TIN ROUT=100Ω, T ≤ 100ms
Reverse Polarity DC Input Voltage VRIN ROUT=100Ω
Reverse Polarity Transient Input
Voltage
VTRRI ROUT=100Ω, T ≤ 100ms
For LM2940-9.0V
PARAMETER
SYMBOL
TEST CONDITIONS
Output Voltage
Line regulation
Load Regulation
VOUT
△VOUT
△VOUT
10.5V ≤ VIN ≤ 26V, 5mA ≤ IOUT ≤ 1A
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
50mA ≤ IOUT ≤ 1A
Output Impedance
ROUT 100 mA DC and 20mARMS, fO=120Hz
Quiescent Current
IQ
VOUT +2V ≤ VIN ≤ 26V, IOUT =5mA
Output Noise Voltage
eN 10Hz-100kHz, IOUT =5mA
Ripple Rejection
RR fO=120Hz, 1VRMS, IOUT =100mA
Long Term Stability
Dropout Voltage
VD
IOUT =1A
IOUT =100mA
Short Circuit Current
ISC (Note)
Maximum Line Transient
TIN ROUT=100Ω, T ≤ 100ms
Reverse Polarity DC Input Voltage VRIN ROUT=100Ω
Reverse Polarity Transient Input
Voltage
VTRRI ROUT=100Ω, T ≤ 100ms
MIN
5.82
60
60
-15
-50
MIN
7.76
54
60
-15
-50
MIN
8.73
52
60
-15
-50
TYP
6.00
20
40
40
10
180
72
20
0.5
0.13
2.5
75
-30
-75
TYP
8.00
20
55
55
10
240
66
32
0.5
0.13
2.5
75
-30
-75
TYP
9.00
20
60
60
10
270
64
34
0.5
0.13
2.5
75
-30
-75
MAX UNIT
6.18
V
60
mV
60
mV
mΩ
15
mA
μVRMS
dB
mV/1000Hr
0.8
V
0.15
A
V
V
V
MAX UNIT
8.24
V
80
mV
80
mV
mΩ
15
mA
μVRMS
dB
mV/1000Hr
0.8
V
0.15
A
V
V
V
MAX UNIT
9.27
V
90
mV
90
mV
mΩ
15
mA
μVRMS
dB
mV/1000Hr
0.8
V
0.15
A
V
V
V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 12
QW-R102-016.L
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