L78XX_07 STMICROELECTRONICS | Alldatasheet

Document overview

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  • PDF pages: 52

Technical content

Datasheet sections

  • 1 Diagram
  • 2 Pin configuration
  • 3 Maximum ratings
  • 4 Test circuits
  • 5 Electrical characteristi cs
  • 6 Typical performance
  • 7 Package mechanical data
  • 8 Order code
  • 9 Revision history

Features

■ Output current to 1.5 A ■ Output voltages of 5; 5.2; 6; 8; 8.5; 9; 10; 12; 15; 18; 20; 24 V ■ Thermal overload protection ■ Short circuit protection ■ Output transition SOA protection

Description

The L78xx series of three-terminal positive regulators is available in TO-220, TO-220FP , TO-3 and D 2PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1 A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. TO-220FP D2PAK TO-220 TO-3 Table 1. Device summary

Table 4. Electrical characteristics of L7805 (refer to the test circuits, T J = -55 to 150°C, Table 5. Electrical characteristics of L7806 (refer to the test circuits, T J = -55 to 150°C, Table 6. Electrical characteristics of L7808 (refer to the test circuits, T J = -55 to 150°C, Table 7. Electrical characteristics of L7812 (refer to the test circuits, T J = -55 to 150°C, Table 8. Electrical characteristics of L7815 (refer to the test circuits, T J = -55 to 150°C, Table 9. Electrical characteristics of L7818 (refer to the test circuits, T J = -55 to 150°C, Table 10. Electrical characteristics of L7820 (refer to the test circuits, T J = -55 to 150°C, Table 11. Electrical characteristics of L7824 (refer to the test circuits, T J = -55 to 150°C, Table 12. Electrical characteristics of L 7805C (refer to the test circuits, TJ = 0 to 150°C, Table 13. Electrical characteristics of L 7852C (refer to the test circuits, TJ = 0 to 150°C, Table 14. Electrical characteristics of L 7806C (refer to the test circuits, TJ = 0 to 150°C, Table 15. Electrical characteristics of L 7808C (refer to the test circuits, TJ = 0 to 150°C, Table 16. Electrical characteristics of L 7885C (refer to the test circuits, TJ = 0 to 150°C, Table 17. Electrical characteristics of L 7809C (refer to the test circuits, TJ = 0 to 150°C, Table 18. Electrical characteristics of L 7810C (refer to the test circuits, TJ = 0 to 150°C, Table 19. Electrical characteristics of L 7812C (refer to the test circuits, TJ = 0 to 150°C, Table 20. Electrical characteristics of L 7815C (refer to the test circuits, TJ = 0 to 150°C, Table 21. Electrical characteristics of L 7818C (refer to the test circuits, TJ = 0 to 150°C, Table 22. Electrical characteristics of L 7820C (refer to the test circuits, TJ = 0 to 150°C, Table 23. Electrical characteristics of L 7824C (refer to the test circuits, TJ = 0 to 150°C,

1 Diagram

Figure 1. Block diagram

2 Pin configuration

Figure 2. Pin connections (top view) Figure 3. Schematic diagram

3 Maximum ratings

Table 2. Absolute maximum ratings Table 3. Thermal data

Figure 4. Application circuits

4 Test circuits

Figure 5. DC Parameter Figure 6. Load regulation

Figure 7. Ripple rejection

5 Electrical characteristics

Table 4. Electrical characteristics of L7805 (refer to the test circuits, TJ = -55 to 150°C, VI = 10 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 5. Electrical characteristics of L7806 (refer to the test circuits, TJ = -55 to 150°C, VI = 11 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 6. Electrical characteristics of L7808 (refer to the test circuits, TJ = -55 to 150°C, VI = 14V, IO

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 7. Electrical characteristics of L7812 (refer to the test circuits, TJ = -55 to 150°C, VI = 19 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 8. Electrical characteristics of L7815 (refer to the test circuits, TJ = -55 to 150°C, VI = 23 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 9. Electrical characteristics of L7818 (refer to the test circuits, TJ = -55 to 150°C, VI = 26 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 10. Electrical characteristics of L7820 (refer to the test circuits, TJ = -55 to 150°C, VI = 28 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 11. Electrical characteristics of L7824 (refer to the test circuits, TJ = -55 to 150°C, VI = 33 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 12. Electrical characteristics of L7805C (refer to the test circuits, TJ = 0 to 150°C, VI = 10 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 13. Electrical characteristics of L7852C (refer to the test circuits, TJ = 0 to 150°C, VI = 10 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 14. Electrical characteristics of L7806C (refer to the test circuits, TJ = 0 to 150°C, VI = 11 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 15. Electrical characteristics of L7808C (refer to the test circuits, TJ = 0 to 150°C, VI = 14 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 16. Electrical characteristics of L7885C (refer to the test circuits, TJ = 0 to 150°C, VI = 14.5 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 17. Electrical characteristics of L7809C (refer to the test circuits, TJ = 0 to 150°C, VI = 15 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 18. Electrical characteristics of L7810C (refer to the test circuits, TJ = 0 to 150°C, VI = 15 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 19. Electrical characteristics of L7812C (refer to the test circuits, TJ = 0 to 150°C, VI = 19 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 20. Electrical characteristics of L7815C (refer to the test circuits, TJ = 0 to 150°C, VI = 23 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 21. Electrical characteristics of L7818C (refer to the test circuits, TJ = 0 to 150°C, VI = 26 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 22. Electrical characteristics of L7820C (refer to the test circuits, TJ = 0 to 150°C, VI = 28 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

Table 23. Electrical characteristics of L7824C (refer to the test circuits, TJ = 0 to 150°C, VI = 33 V,

  1. Load and line regulation are spec ified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

6 Typical performance

Figure 8. Dropout voltage vs junction Figure 9. Peak output current vs input/output Figure 10. Supply voltage rejection vs Figure 11. Output voltage vs junction Figure 12. Output impedance vs frequency Figure 13. Quiescent current vs junction temp.

  1. Application with high capacitanc e loads and an output voltage greater than 6 volts need an external diode

the series pass transistor in the regulator. If the energy is sufficiently high, the transistor may be destroyed. The external diode by-passes the current from the IC to ground. Figure 37. Protection against input s hort-circuit with high capacitance loads

L78xx - L78xxC Package mechanical data

7 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com.

Package mechanical data L78xx - L78xxC Dim. mm. inch. A 11. 85 0.466 C 1.70 0.066 D 8.7 0. 342 E 20.0 0.7 87 G 10. 9 0.429 N 16. 9 0.665 P 26.2 1.0 31 R 3.88 4.09 0.152 0.161 U 39.5 1.555 V 30.10 1.1 85 TO-3 mechanical data P003C/C E B R C DAP G N VU O

L78xx - L78xxC Package mechanical data Dim. mm. inch. A 4.40 4.60 0.17 3 0.181 b 0.61 0. 88 0.024 0.0 35 b1 1.15 1.70 0.045 0.067 c0 . 4 9 0.70 0.01 9 0.028 D 15.25 15.75 0.600 0.620 E 10.0 10.40 0. 394 0.40 9 e 2.4 2.7 0.0 94 0.106 e1 4. 95 5.15 0.1 95 0.20 3 F1 . 2 3 1.32 0.04 8 0.052 H1 6.2 6.6 0.244 0.260 J1 2.40 2.72 0.0 94 0.107 L1 3.0 14.0 0.512 0.551 L1 3.5 3.93 0.138 0.155 L20 16.4 0.646 L302 8.9 1.138 φP 3.75 3.85 0.14 8 0.152 Q 2.65 2. 95 0.104 0.116 TO-220 (A type) mechanical data 0015988/N

Package mechanical data L78xx - L78xxC Dim. mm. inch. A 4.40 4.60 0.17 3 0.181 B 2.5 2.7 0.0 98 0.106 D 2.5 2.75 0.0 98 0.108 E 0.45 0.70 0.017 0.027 F 0.75 1 0.0 300 . 0 39 F1 1.15 1.50 0.045 0.05 9 F2 1.15 1.50 0.045 0.05 9 G4 . 95 5.2 0.1 94 0.204 G1 2.4 2.7 0.0 94 0.106 H 10.0 10.40 0. 393 0.409 L2 16 0.6 30 L3 28.6 30.6 1.126 1.204 L4 9.8 10.6 0. 3850 . 4 1 7 L5 2. 93 .6 0.114 0.142 L6 15. 9 16.4 0.626 0.645 L7 99 .3 0.354 0. 366 DIA. 33 .2 0.11 8 0.126 TO-220FP mechanical data 7012510A-H

Figure 38. Drawing dimension D 2PAK (type STD-ST)

Figure 39. Drawing dimension D 2PAK (type WOOSEOK-SUBCON.)

ST's package suggested footprint. Table 24. D 2PAK mechanical data TYPE STD-ST TYPE WOOSEOK-SUBCON.

Figure 40. D 2PAK footprint recommended data Table 25. Footprint data

L78xx - L78xxC Package mechanical data Dim. mm. inch. A1 80 7.0 86 D 20.2 0.7 95 N6 0 2 . 362 T 14.4 0.567 Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data

8 Order code

Table 26. Order code

9 Revision history

Table 27. Revision history 21-Jun-2004 12 Document updating. 03-Aug-2006 13 Order codes has been updated and new template. 19-Jan-2007 14 D 2PAK mechanical data has been updated and add footprint data. 31-May-2007 15 Order codes has been updated. 29-Aug-2007 16 Added Table 1. in cover page.