|
|
7912CTのメーカーはETCです、この部品の機能は「L7912CT」です。 |
部品番号 | 7912CT |
| |
部品説明 | L7912CT | ||
メーカ | ETC | ||
ロゴ | |||
このページの下部にプレビューと7912CTダウンロード(pdfファイル)リンクがあります。 Total 13 pages
www.DataSheet4U.com
L7900
® SERIES
NEGATIVE VOLTAGE REGULATORS
s OUTPUT CURRENT UP TO 1.5 A
s OUTPUT VOLTAGES OF -5; -5.2; -6; -8; -9;
-12; -15; -18; -20; -22; -24V
s THERMAL OVERLOAD PROTECTION
s SHORT CIRCUIT PROTECTION
s OUTPUT TRANSITION SOA PROTECTION
DESCRIPTION
The L7900 series of three-terminal negative
regulators is available in TO-220, ISOWATT220
TO-3 and D2PAK packages and several fixed
output voltages, making it useful in a wide range
of applications.These regulators can provide local
on-card regulation, eliminating the distribution
problems associated with single point regulation;
furthermore, having the same voltage option as
the L7800 positive standard series, they are
particularly suited for split power supplies. In
addition, the -5.2V is also available for ECL
system. If adequate heat sinking is provided,
they can deliver over 1.5A output current.
Although designed primarily as fixed voltage
regulators, these devices can be used with
external components to obtain adjustable
voltages and currents.
SCHEMATIC DIAGRAM
1
2
TO-3
3
1
D2PAK
TO-220
3
2
1
ISOWATT220
November 1999
1/13
1 Page www.DataSheet4U.com
L7900
ELECTRICAL CHARACTERISTICS FOR L7905C (refer to the test circuits, Tj = 0 to 150 oC,
Vi = -10V, Io = 500 mA, Ci = 2.2 µF, Co = 1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Tj = 25 oC
-4.8 -5 -5.2
Vo Output Voltage
∆Vo* Line Regulation
∆Vo* Load Regulation
Id Quiescent Current
Io = -5 mA to -1 A Po ≤ 15 W
Vi = 8 to 20 V
Vi = -7 to -25 V Tj = 25 oC
Vi = -8 to -12 V Tj = 25 oC
Io = 5 to 1500 mA Tj = 25 oC
Io = 250 to 750 mA Tj = 25 oC
Tj = 25 oC
-4.75 -5 -5.25
1 00
50
1 00
50
3
∆Id Quiescent Current Change Io = 5 to 1000 mA
0.5
∆Id Quiescent Current Change Vi = -8 to -25 V
1.3
∆Vo Output Voltage Drift
∆T
Io = 5 mA
-0.4
eN Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
100
SVR Supply Voltage Rejection
Vd Dropout Voltage
∆Vi = 10 V f = 120 Hz
Io = 1 A
Tj = 25 oC
∆VO = 100 mV
54 60
1.4
Is c Short Circuit Current
Iscp Short Circuit Peak Current
Tj = 25 oC
2.1
2.5
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
m V/ oC
µV
dB
V
A
A
ELECTRICAL CHARACTERISTICS FOR L7952C (refer to the test circuits, Tj = 0 to 150 oC,
Vi = -10V, Io = 500 mA, Ci = 2.2 µF, Co = 1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Tj = 25 oC
-5.0 -5.2 -5.4
Vo Output Voltage
∆Vo* Line Regulation
∆Vo* Load Regulation
Id Quiescent Current
Io = -5 mA to -1 A Po ≤ 15 W
Vi = -9 to -21 V
Vi = -8 to -25 V Tj = 25 oC
Vi = -9 to -12 V Tj = 25 oC
Io = 5 to 1500 mA Tj = 25 oC
Io = 250 to 750 mA Tj = 25 oC
Tj = 25 oC
-4.95 -5.2 -5.45
1 05
52
1 05
52
3
∆Id Quiescent Current Change Io = 5 to 1000 mA
0.5
∆Id Quiescent Current Change Vi = -9 to -25 V
1.3
∆Vo Output Voltage Drift
∆T
Io = 5 mA
-0.5
eN Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
125
SVR Supply Voltage Rejection
Vd Dropout Voltage
∆Vi = 10 V f = 120 Hz
Io = 1 A
Tj = 25 oC
∆VO = 100 mV
54 60
1.4
Is c Short Circuit Current
Iscp Short Circuit Peak Current
Tj = 25 oC
2
2.5
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
m V/ oC
µV
dB
V
A
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
3/13
3Pages www.DataSheet4U.com
L7900
ELECTRICAL CHARACTERISTICS FOR L7918C (refer to the test circuits, Tj = 0 to 150 oC,
Vi = -27V, Io = 500 mA, Ci = 2.2 µF, Co = 1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Tj = 25 oC
-17.3 -18 -18.7
Vo Output Voltage
∆Vo* Line Regulation
∆Vo* Load Regulation
Id Quiescent Current
Io = -5 mA to -1 A Po ≤ 15 W
Vi = -22 to -33 V
Vi = -21 to -33 V Tj = 25 oC
Vi = -24 to -30 V Tj = 25 oC
Io = 5 to 1500 mA Tj = 25 oC
Io = 250 to 750 mA Tj = 25 oC
Tj = 25 oC
-17.1 -18 -18.9
3 60
1 80
3 60
1 80
3
∆Id Quiescent Current Change Io = 5 to 1000 mA
0.5
∆Id Quiescent Current Change Vi = -22 to -33 V
1
∆Vo Output Voltage Drift
∆T
Io = 5 mA
-1
eN Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
300
SVR Supply Voltage Rejection
Vd Dropout Voltage
∆Vi = 10 V f = 120 Hz
Io = 1 A
Tj = 25 oC
∆VO = 100 mV
54 60
1.1
Is c Short Circuit Current
Iscp Short Circuit Peak Current
Tj = 25 oC
1.1
2.2
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
m V/ oC
µV
dB
V
A
A
ELECTRICAL CHARACTERISTICS FOR L7920C (refer to the test circuits, Tj = 0 to 150 oC,
Vi = -29V, Io = 500 mA, Ci = 2.2 µF, Co = 1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Vo Output Voltage
Tj = 25 oC
-19.2 -20 -20.8
Vo Output Voltage
∆Vo* Line Regulation
∆Vo* Load Regulation
Id Quiescent Current
Io = -5 mA to -1 A Po ≤ 15 W
Vi = -24 to -35 V
Vi = -23 to -35 V Tj = 25 oC
Vi = -26 to -32 V Tj = 25 oC
Io = 5 to 1500 mA Tj = 25 oC
Io = 250 to 750 mA Tj = 25 oC
Tj = 25 oC
-19 -20 -21
4 00
2 00
4 00
2 00
3
∆Id Quiescent Current Change Io = 5 to 1000 mA
0.5
∆Id Quiescent Current Change Vi = -24 to -35 V
1
∆Vo Output Voltage Drift
∆T
Io = 5 mA
-1.1
eN Output Noise Voltage
B = 10Hz to 100KHz Tj = 25 oC
350
SVR Supply Voltage Rejection
Vd Dropout Voltage
∆Vi = 10 V f = 120 Hz
Io = 1 A
Tj = 25 oC
∆VO = 100 mV
54 60
1.1
Is c Short Circuit Current
Iscp Short Circuit Peak Current
Tj = 25 oC
0.9
2.5
Unit
V
V
mV
mV
mV
mV
mA
mA
mA
m V/ oC
µV
dB
V
A
A
* Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
6/13
6 Page | |||
ページ | 合計 : 13 ページ | ||
|
PDF ダウンロード | [ 7912CT データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
7912CT | L7912CT | ETC |