LM7900 Просмотр технического описания (PDF) - Semelab - > TT Electronics plc
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LM7900 Datasheet PDF : 6 Pages
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IP120 SERIES
IP7900 SERIES
LM120 SERIES
LM7900 SERIES
Parameter
Test Conditions
IP/LM 7915A Series
IP/LM120A–15 Series
Min. Typ. Max.
IP/LM 7915 Series
IP/LM120–15 Series
Min. Typ. Max.
Units
IO = 500mA
VIN = -23V
-14.85 -15 -15.15 -14.7 -15 -15.3
VO Output Voltage
VIN = -17.9V to -30V PD ≤ PMAX
IO = 5mA to IMAX TJ = -55 to 150°C
-14.55
-15.45 -14.4
V
-15.6
VO Low Supply
IO = 5mA to IMAX PD ≤ PMAX
VIN = -17.5V to -30V
-14.25
-15.45 -14.25
-15.75 V
VIN = -17.5V to -30V
4
22
4
150
∆VO Line Regulation
IO = 0.5 IMAX
VIN = -17.9V to -30V
TJ = -55 to 150°C
4
22
4
250
mV
IO ≤ IMAX
2
10
2
75
VIN = -20V to -26V TJ = -55 to 150°C
5
30
5
150
∆VO Load Regulation
VIN = -23V
VIN = -23V
IO = 5mA to 1.5A
IO = 250mA to 750mA
IO = 5mA to IMAX
TJ = -55 to 150°C
12
35
4
21
9
75
12
80
4
75
mV
9
150
IQ
Quiescent Current IO ≤ 0.5 IMAX
VIN = -23V
TJ = -55 to 150°C
1.0
1.9
1.0
2
1.0
1.9
mA
1.0
2
IO = 5mA to IMAX
0.2
0.4
0.2
0.4
∆IQ Quiescent Current VIN = -23V
Change
IO ≤ 0.5 IMAX
TJ = -55 to 150°C
VIN = -17.5V to -30V
VIN = -18.5V to -30V
TJ = -55 to 150°C
0.2
0.5
0.1
0.4
0.1
0.5
0.2
0.5
0.1
0.4 mA
0.1
1.0
VN Output Noise
Voltage
f = 10Hz to 100kHz
VIN = -23V
90 1200
90 1200 µV
∆VIN Ripple Rejection
∆VO
f = 120Hz
VIN = -18.5V to
-28.5V
IO ≤ IMAX
IO ≤ 0.5 IMAX
TJ = -55 to 150°C
56
70
56
70
54
70
dB
54
70
Dropout Voltage IO = IMAX
1.1
2.3
1.1
2.3
V
RO Output Resistance f = 1.0 kHz
9
9
mΩ
Isc Short Circuit
Current
VIN = -35V
0.6
1.2
0.6
1.2
A
Ipk Peak Output
Current
VIN = -23V
2.4
3.3
2.4
3.3
Average Temperature
Coefficient of VO
IO = 5mA
Input Voltage required to
maintain line regulation IO ≤ IMAX
0.6
6
mV
0.6
6
°C
-17.5
-17.5
V
1) All characteristics are measured with a capacitor across the input of 2.2µF and a capacitor across the output of 1.0µF.
All characteristics except noise voltage and ripple rejection ratio are measured using pulse techniques (tp ≤ 10ms, δ ≤ 5%). Output voltage changes due to changes in
internal temperature must be taken into account separately.
2) Test Conditions unless otherwise stated: PMAX = 10W for SMD , P MAX = 20W for all other package devices, IMAX = 1.0A , TJ = 25°C
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Document Number 3725
Issue 2
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