INTGR 7809 Datasheet

7809•

THREE-TERMINAL POSITIVE 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 Symbol Norm Unit
Input Voltage Vin V 35
Maximum Dissipated
Power(with heat sink)

Ptot(max) W 15

Maximum Dissipated
Power(without heat sink)

Ptot(max) W 1.5

Thermal Resistance
Junction to Case

OjC °C/W 5.0

Thermal Resistance,
Junction to Air

OjA °C/W 65

Junction Temperature

T

j

°C 150

TO-220

1

1. Input

2. GND

3. Output

Tc=-45÷+70°C

ELECTRICAL CHARACTERISTICS

(Vin=15V,Io=0.5A,Ci=0.33mkF,Co=0.1mkF,Tj=0+125°C, unless otherwise noted.)

Characteristic Symbo

l

Norm Unit

Min TYP Max
Output Voltage(Tj=25°C) Vo 8.65 9.35 V

Output Voltage (5.0mA≤Io≤1.0A,Po≤15W)

11.5V≤Vin≤24V

Vo

8.55

9.45 V

Line Regulation(Tj=+25°C)

11.5 V≤Vin≤26 V

11.5≤ V≤Vin≤17 V

∆Vv

90
180

mV

Load Regulation(Tj=+25°C

5.0mA≤Io≤1.5A

0.25A≤Io≤0.75A

∆Vi

180
90

mV

Quiescent Current(Tj=+25°C) Ib 8.0 mA

Quiescent Current Change 11,5 V≤Vin≤26 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
Voltage

TCVo 0.6 mV/°C