TL783C_07 Datasheet, PDF (3/15 Pages) Texas Instruments – HIGH-VOLTAGE ADJUSTABLE REGULATOR

functional block diagram
ADJ
Error
Amplifier
–
+
Protection
Circuit
TL783C, TL783Y
HIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C – SEPTEMBER 1981 – REVISED APRIL 1997
VI
IN
ǒ Ǔ) VO ≈ Vref 1
R2
R1
OUT
VO
Vref
R1
R2
absolute maximum ratings over operating temperature range (unless otherwise noted)^†
Input-to-output differential voltage, V_l – V_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125 V
Continuous total power dissipation at (or below) T_A = 25°C (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W
Continuous total power dissipation at (or below) T_C = 70°C (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Operating free-air, T_A, case, T_C, or virtual junction, T_J, temperature range . . . . . . . . . . . . . . . . . 0°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
† _{Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and}
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: For operation above TA = 25°C or TC = 70°C, refer to Figures 1 and 2, respectively. To avoid exceeding the design maximum virtual
junction temperature, these ratings should not be exceeded. Due to variations in individual device electrical characteristics and thermal
resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation
2000
FREE-AIR TEMPERATURE
DISSIPATION DERATING CURVE
CASE TEMPERATURE
DISSIPATION DERATING CURVE
24
1800
Derating Factor = 16 mW/°C
R_θJA ≈ 62.5°C/W
20
1600
1400
16
1200
1000
12
800
600
400
200
0
25
50
75
100
125
150
TA – Free-Air Temperature – °C
8
Derating Factor = 250 mW/°C
4 Above 70°C
R_θJC ≈ 4°C/W
0
25
50
75
100
125
150
TC – Case Temperature – °C
Figure 1
Figure 2
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