Datasheet 7812 Datasheet (INTGR)

7812•

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)

THREE-TERMINAL POSITIVE VOLTAGE REGULATOR IC

.

Characteristic Symbol Norm Unit
Input Voltage Vin V 35
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

TO-220

1

1. Input

2. GND

3. Output

Tc=-45÷+70°C

ELECTRICAL CHARACTERISTICS

(Vin=19V,Io=0.5A,Ci=0.33mkF,Co=0.1mkF,Tj=0+125°C, unless otherwise noted.)

Characteristic Symbo

Norm Unit

l
Min TYP Max
Output Voltage(Tj=25°C) Vo 11,5 12.5 V

Output Voltage (5.0mA≤Io≤1.0A,Po≤15W)

14.5V≤Vin≤27V

Line Regulation(Tj=+25°C)

14.5 V≤Vin≤30 V

16.0≤ V≤Vin≤22 V

Load Regulation(Tj=+25°C)

5.0mA≤Io≤1.5A

0.25A≤Io≤0.75A

Vo

11,4

∆Vv

∆Vi

12.6 V

mV
240
120

mV
240
120

Quiescent Current(Tj=+25°C) Ib 8.0 mA

Quiescent Current Change 14,5 V≤Vin≤30 V

5.0mA≤Io≤1.0 A

∆Ib

1.0

0.5

mA

Dropout Voltage (Io=1.0A,Tj=+25°C) Vi-Vo 2.0 V
Short Circuit Current Limit(Ta=+25°C),Vin=35V Isс 0.4 A
Peak Output Current(Tj=+25°C) Imax 2.2 A
Average Temperature Coefficient of Output

TCVo 0.7 mV/°C

Voltage