7924鈥?/div>
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擄 C)
Characteristic
Symbol
Norm
Unit
TO-220
Input Voltage
Vin
V
-40
Maximum Dissipated
Ptot(max) W
15
Power(with heat sink)
Maximum Dissipated
Ptot(max) W
1.5
Power(without heat sink)
Thermal Resistance
OjC
擄C/W
5.0
1
Junction to Case
1 GND.
Thermal Resistance,
OjA
擄C/W
65
2. Input
Junction to Air
3. Output
擄C
150
Junction Temperature
T
j
Tc=-45梅+70擄C
ELECTRICAL CHARACTERISTICS
(Vin=-33V,Io=0.5A,Ci=2.2mkF,Co=1.0mkF,Tj=0+125擄C, unless otherwise noted.)
Characteristic
Symbol
Norm
Unit
Min
TYP Max
Output Voltage(Tj=25擄C)
Vo
-23
-25
V
Vo
Output Voltage (5.0mA鈮o鈮?.0A,Po鈮?5W)
-22,8
-25,2 V
-27V鈮in鈮?38V
Line Regulation(Tj=+25擄C, Io=0,1A)
鈭哣v
240
mV
-27 V鈮in鈮?38 V
120
-30V鈮in鈮?36 V
(Tj=+25擄C, Io=0,5A)
470
-27 V鈮in鈮?38 V
240
-30V鈮in鈮?36 V
Load Regulation(Tj=+25擄C)
mV
鈭哣i
480
5.0mA鈮o鈮?.5A
240
0.25A鈮o鈮?.75A
Quiescent Current(Tj=+25擄C)
Ib
8.0
mA
1.0
mA
Quiescent Current Change -27 V鈮in鈮?38 V
鈭咺b
0.5
5.0mA鈮o鈮?.5 A
Dropout Voltage (Io=1.0A,Tj=+25擄C)
Vi-Vo
2.0
V
Average Temperature Coefficient of Output
TCVo
1
mV/擄
Voltage
C
1
