7809 데이터 시트보기 (PDF) - Semtech Electronics LTD.
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7809 Datasheet PDF : 3 Pages
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7809
3-terminal 1 A positive voltage regulator
Features
• Output Current up to 1 A
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Absolute Maximum Ratings (Ta = 25 OC)
Parameter
Input Voltage
Thermal Resistance Junction-Cases
Thermal Resistance Junction-Air
Operating Temperature Range
Storage Temperature Range
TO-220 Plastic Package
Symbol
VI
RθJC
RθJA
TOPR
TS
Value
35
5
65
0 to + 125
- 65 to + 150
Unit
V
OC/W
OC/W
OC
OC
Electrical Characteristics
(0 OC < TJ < 125 OC, IO = 500 mA, VI = 15 V, CI = 0.33 µF, CO = 0.1 µF, unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
TJ = 25 OC
8.65 9 9.35
Output Voltage
VO 5 mA IO 1 A, PO 15 W
VI = 11.5 V to 24 V
V
8.6 9 9.4
Line Regulation 1)
Regline TJ = 25 OC
VI = 11.5 V to 25 V
VI = 12 V to 17 V
-
- 180
mV
-
-
90
Load Regulation 1)
Regload TJ = 25 OC
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
-
-
- 180
mV
-
90
Quiescent Current
IQ
TJ = 25 OC
-
-
8
mA
Quiescent Current Change
IQ
IO = 5 mA to 1 A
VI = 12 V to 26 V
-
- 0.5
mA
-
- 1.3
Output Voltage Drift
VO/T IO = 5 mA
-
-1
- mV/OC
Output Noise Voltage
VN f = 10 Hz to 100 KHz, TA = 25 OC
-
58
-
µV
Ripple Rejection
RR f = 120 Hz, VI = 13 V to 23 V
56
-
-
dB
Dropout Voltage
VDrop IO = 1 A, TJ = 25 OC
-
2
-
V
Output Resistance
RO f = 1 KHz
-
15
-
mΩ
Short Circuit Current
ISC VI = 35 V, TA = 25 OC
- 250 -
mA
Peak Current
IPK
TJ = 25 OC
- 2.2 -
A
1) 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 is used.
SEMTECH ELECTRONICS LTD.
®
Dated : 17/09/2016 Rev：01
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