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Número de pieza | LM7808 | |
Descripción | (LM78XX) 3-Terminal 1A Positive Voltage Regulator | |
Fabricantes | Thinki Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de LM7808 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
No Preview Available ! LM78XX
®
LM78XX
Pb Free Plating Product
3-Terminal 1 A Positive Voltage Regulator
Pb
Features
● Output Voltage Range 5 to 24V
● Output current up to 1A
● No external components required
● Internal thermal overload protection
● Internal short-circuit current limiting
● Output transistor safe-area compensation
● Output voltage offered in 4% tolerance
TO-220M-1
Unit : (mm)
Standard Application Circuit
A common ground is required between the input and the
output voltages. The input voltage must remain typically
2.0V above the output voltage even during the low point on
the Input ripple voltage.
XX = these two digits of the type number indicate voltage.
* = Cin is required if regulator is located an appreciable
distance from power supply filter.
** = Co is not needed for stability; however, it does improve
transient response.
Absolute Maximum Rating (Ta = 25oC unless otherwise noted)
Parameter
Symbol
Input Voltage
VOUT=5~18V
VOUT=24V
VIN
Output Current
IOUT
Power Dissipation
PD
Operating Junction Temperature
TJ
Storage Temperature Range
TSTG
Thermal Resistance - Junction to Case
TO-220
ITO-220
RӨJC
Thermal Resistance - Junction to Ambient
TO-220
ITO-220
RӨJA
Limit
35
40
Internal Limited
Internal Limited
0~+125
-65~+150
5
5
50
60
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Unit
V
oC
oC
oC/W
oC/W
© 2006 Thinki Semiconductor Co.,Ltd.
Page 1/7
http://www.thinkisemi.com/
Free Datasheet http://www.datasheet4u.com/
1 page LM78XX
®
LM7815 Electrical Characteristics
Vin=23V, Iout=500mA, 0oC≤Tj≤125oC, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
Parameter
Symbol
Test Condition
Min Typ
Tj=25oC
14.42 15
Output voltage
Vout
17.5V≤Vin≤30V,
10mA≤Iout≤1A, PD ≤15W
14.28 15
Line Regulation
REGline Tj=25oC 17.5V≤Vin≤30V
18V≤Vin≤22V
-- 12
-- 3
Load Regulation
Quiescent Current
REGload
Iq
Tj=25oC
10mA≤Iout≤1A
250mA≤Iout≤750mA
Tj=25oC, Iout=0
--
--
--
12
4
4.3
Quiescent Current Change
Output Noise Voltage
∆Iq
17.5V≤Vin≤30V
10mA≤Iout≤1A
Vn 10Hz≤f≤100KHz, Tj=25oC
-- --
-- --
-- 90
Ripple Rejection Ratio
Voltage Drop
RR
Vdrop
f=120Hz, 18V≤Vin≤28V
Iout=1.0A, Tj=25oC
54 70
-- 2
Output Resistance
Output Short Circuit Current
Peak Output Current
Rout
Ios
Io peak
f=1KHz
Tj=25oC
Tj=25oC
-- 19
-- 230
-- 2.2
Temperature Coefficient of
Output Voltage
∆Vout/ ∆Tj Iout=10mA, 0oC≤Tj≤125oC
-- -1
Max
15.60
15.75
Unit
V
300
150
mV
300
150
8
1 mA
0.5
-- µV
-- dB
-- V
-- mΩ
-- mA
-- A
-- mV/ oC
LM7818 Electrical Characteristics
(Vin=24V, Iout=500mA, 0oC≤Tj≤125oC, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
Parameter
Symbol
Test Condition
Min Typ Max Unit
Tj=25oC
17.30 18 18.72
Output Voltage
Vout
21V≤Vin≤33V, 10mA≤Iout≤1A,
PD ≤15W
17.14
18
18.90
V
Line Regulation
Load Regulation
Quiescent Current
REGline
REGload
Iq
Tj=25oC
21V≤Vin≤33V
22V≤Vin≤26V
Tj=25oC 10mA≤Iout≤1A
250mA≤Iout≤750mA
Tj=25oC, Iout=0
--
--
--
--
--
15 360
5 180
mV
12 360
4 180
4.5 8
Quiescent Current Change
Output Noise Voltage
∆Iq
21V≤Vin≤33V
10mA≤Iout≤1A
Vn 10Hz≤f≤100KHz, Tj=25oC
-- -- 1 mA
-- -- 0.5
-- 110 --
uV
Ripple Rejection Ratio
Voltage Drop
RR
Vdrop
f=120Hz, 21V≤Vin≤31V
Iout=1.0A, Tj=25oC
54 70 -- dB
-- 2 -- V
Output Resistance
Output Short Circuit Current
Peak Output Current
Rout
Ios
Io peak
f=1KHz
Tj=25oC
Tj=25oC
-- 22 -- mΩ
-- 200 -- mA
-- 2.2 --
A
Temperature Coefficient of
Output Voltage
∆Vout/ ∆Tj Iout=10mA, 0oC≤Tj≤125oC
-- -1 -- mV/ oC
Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as
possible, and thermal effects must be taken into account separately.
This specification applies only for DC power dissipation permitted by absolute maximum ratings.
© 2006 Thinki Semiconductor Co.,Ltd.
Page 5/7
http://www.thinkisemi.com/
Free Datasheet http://www.datasheet4u.com/
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet LM7808.PDF ] |
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