7908 查看數據表（PDF） - Integral Corp.

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7908

THREE-TERMINAL NEGATIVE VOLTAGE REGULATOR IC

Integral Corp. 

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

Tj

°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

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