7908 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – 7908 THREE-TERMINAL NEGATIVE VOLTAGE REGULATOR IC

7908• THREE-TERMINAL NEGATIVE VOLTAGE REGULATOR IC
FEATURES:
- OUTPUT CURRENT IN EXCESS OF 1A;
- NO EXTERNAL COMPONENTS REQUIRED;
- INTERNAL SHORT CIRCUIT CURRENT LIMITING;
- INTERNAL THERMAL OVERLOAD PROTECTION;
- OUTPUT TRANSISTOR SAFE-AREA COMPENSATION;
- OUTPUT VOLTAGE OFFERED IN 4% TOLERANCE.
ABSOLUTE MAXIMUM RATINGS (Ta= 25° C)
Characteristic
Input Voltage
Symbol Norm Unit
Vin
V
-35
TO-220
Maximum Dissipated
Ptot(max) W
15
Power(with heat sink)
Maximum Dissipated
Ptot(max) W
1.5
Power(without heat sink)
Thermal Resistance
OjC
°C/W 5.0
Junction to Case
Thermal Resistance,
OjA
°C/W 65
Junction to Air
Junction Temperature
T_j
°C
150
Tc=-45÷+70°C
1
1. GND
2. Input
3. Output
ELECTRICAL CHARACTERISTICS
(Vin=-14V,Io=0.5A,Ci=2.2mkF,Co=1.0mkF,Tj=0+125°C, unless otherwise noted.)
Characteristic
Symbo
Norm
Unit
l
Min TYP Max
Output Voltage(Tj=25°C)
Vo -7.7
-8.3 V
Output Voltage (5.0mA≤Io≤1.0A,Po≤15W)
Vo
-10,5V≥Vin≥-23V
-7.6
-8.4 V
Line Regulation(Tj=+25°C, Io=0,1A)
∆Vv
-10,5 V≥Vin≥-25 V
80 mV
-11V≥Vin≥-17 V
40
(Tj=+25°C, Io=0,5A)
-10,5 V≥Vin≥-25 V
160
-11V≥Vin≥-17 V
80
Load Regulation(Tj=+25°C)
5.0mA≤Io≤1.5A
∆Vi
mV
160
0.25A≤Io≤0.75A
80
Quiescent Current(Tj=+25°C)
Ib
8.0 mA
Quiescent Current Change -10.5 V≥Vin≥-25 V ∆Ib
1.0 mA
5.0mA≤Io≤1.5 A
0.5
Dropout Voltage (Io=1.0A,Tj=+25°C)
Vi-Vo
2.0
V
Average Temperature Coefficient of Output
TCVo
0,5
mV/°C
Voltage