MC7809AE Datasheet PDF - Fairchild Semiconductor
Part Number | MC7809AE | |
Description | 3-Terminal 1A Positive Voltage Regulator | |
Manufacturers | Fairchild Semiconductor | |
Logo | ||
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MC78XXE/LM78XXE/MC78XXAE
3-Terminal 1A Positive Voltage Regulator
Features
• Output Current up to 1A
• Output Voltages of 5, 6, 8, 9, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The MC78XXE/LM78XXE/MC78XXAE series of three
terminal positive regulators are available in the
TO-220/D-PAK package and with several fixed output
voltages, making them useful in a wide range of
applications. Each type employs internal current limiting,
thermal shut down and safe operating area protection,
making it essentially indestructible. If adequate heat sinking
is provided, they can deliver over 1A output current.
Although designed primarily as fixed voltage regulators,
these devices can be used with external components to
obtain adjustable voltages and currents.
TO-220
GND
Internal Block Digram
1
D-PAK
GND
1
1. Input 2. GND 3. Output
INPUT
1
CURRENT
GENERATOR
STARTING
CIRCUIT
REFERENCE
VOLTAGE
SERIES
PASS
ELEMENT
SOA
PROTECTION
ERROR
AMPLIFIER
OUTPUT
3
©2003 Fairchild Semiconductor Corporation
THERMAL
PROTECTION
GND
2
Rev. 1.0.0
|
|
MC78XXE/LM78XXE/MC78XXAE
Electrical Characteristics (MC7809E) (Continued)
(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =15V, CI= 0.33µF, CO= 0.1µF, unless otherwise specified)
Parameter
Symbol
Output Voltage
VO
Line Regulation (Note1)
Regline
Load Regulation (Note1) Regload
Quiescent Current
IQ
Quiescent Current Change ∆IQ
Output Voltage Drift (Note2) ∆VO/∆T
Output Noise Voltage
VN
Ripple Rejection (Note2)
RR
Dropout Voltage
Output Resistance (Note2)
Short Circuit Current
Peak Current (Note2)
VDrop
rO
ISC
IPK
Conditions
TJ = +25°C
5.0mA ≤ IO ≤ 1.0A, PO ≤ 15W
VI = 11.5V to 24V
TJ = +25°C
VI = 11.5V to 25V
VI = 12V to 17V
TJ = +25°C
IO = 5mA to 1.5A
IO = 250mA to 750mA
TJ = +25°C
IO = 5mA to 1.0A
VI = 11.5V to 26V
IO = 5mA
f = 10Hz to 100kHz, TA = +25°C
f = 120Hz
VI = 13V to 23V
IO = 1A, TJ = +25°C
f = 1kHz
VI = 35V, TA = +25°C
TJ = +25°C
MC7809E
Min. Typ. Max.
8.65 9 9.35
Unit
8.6 9 9.4
V
- 6 180
mV
- 2 90
- 12 180
mV
- 4 90
- 5.0 8.0 mA
- - 0.5
mA
- - 1.3
- -1 - mV/°C
- 58 - µV/Vo
56 71 -
dB
- 2-
- 17 -
- 250 -
- 2.2 -
V
mΩ
mA
A
Note:
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.
2. These parameters, although guaranteed, are not 100% tested in production.
5
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Information | Total 26 Pages | |
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