Datenblatt-pdf.com


L7906ACD2T Schematic ( PDF Datasheet ) - STMicroelectronics

Teilenummer L7906ACD2T
Beschreibung NEGATIVE VOLTAGE REGULATORS
Hersteller STMicroelectronics
Logo STMicroelectronics Logo 




Gesamt 11 Seiten
L7906ACD2T Datasheet, Funktion
L7900AC
® SERIES
2% NEGATIVE VOLTAGE REGULATORS
s OUTPUT CURRENT UP TO 1.5 A
s OUTPUT VOLTAGES OF -5; -5.2; -6; -8; -12;
-15; -18; -20; -22; -24V
s THERMAL OVERLOAD PROTECTION
s SHORT CIRCUIT PROTECTION
s OUTPUT TRANSITION SOA PROTECTION
DESCRIPTION
The L7900AC series of three-terminal negative
regulators is available in TO-220 and D2PAK
packages and several fixed output voltages.
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 L7800A 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
3
1
D2PAK
TO-220
November 1999
1/11






L7906ACD2T Datasheet, Funktion
L7900AC
ELECTRICAL CHARACTERISTICS FOR L7918A (refer to the test circuits, Tj = 0 to 125 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
-17.64 -18 -18.36
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
-17.3 -18 -18.7
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 L7920A (refer to the test circuits, Tj = 0 to 125 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
-19.6 -20 -20.4
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
-19.2 -20 -20.8
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
2.2
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.
6/11

6 Page







SeitenGesamt 11 Seiten
PDF Download[ L7906ACD2T Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
L7906ACD2T2% NEGATIVE VOLTAGE REGULATORSSTMicroelectronics
STMicroelectronics
L7906ACD2TNEGATIVE VOLTAGE REGULATORSSTMicroelectronics
STMicroelectronics

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche