L7810CV datasheet(13/47 Pages) STMICROELECTRONICS

13 / 47 page

L7800 series

Electrical characteristics

13/47

Table 10.

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

= 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

TJ = 25°C

Output voltage

IO = 5mA to 1A, PO ≤15W

VI = 28 to 38V

22.8

25.2

∆VO(1)

Line regulation

VI = 27 to 38V, TJ = 25°C

240

VI = 30 to 36V, TJ = 25°C

120

∆VO(1)

Load regulation

IO = 5 mA to 1.5A, TJ = 25°C

240

IO = 250 to 750mA, TJ = 25°C

120

Quiescent current

TJ = 25°C

∆Id

Quiescent current change

IO = 5mA to 1A

0.5

VI = 28 to 38V

0.8

∆VO/∆T Output voltage drift

IO = 5mA

mV/°C

Output noise voltage

B =10Hz to 100KHz, TJ = 25°C

µV/VO

SVR

Supply voltage rejection

VI = 28 to 38V, f = 120Hz

Dropout voltage

IO = 1A, TJ = 25°C

2.5

Output resistance

f = 1 KHz

Ω

Isc

Short circuit current

VI = 35V, TJ = 25°C

0.75

1.2

Iscp

Short circuit peak current

TJ = 25°C

1.3

2.2

3.3

Load and line regulation are specified 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.

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