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MC7812AC View Datasheet(PDF) - Motorola => Freescale

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Description
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MC7812AC Datasheet PDF : 16 Pages
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MC7800, MC7800A, LM340, LM340A Series
ELECTRICAL CHARACTERISTICS (Vin = 15 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7809CT
Characteristic
Symbol
Min
Typ
Max
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA IO 1.0 A, PD 15 W)
11.5 Vdc Vin 24 Vdc
Line Regulation, TJ = 25°C (Note 2)
11 Vdc Vin 26 Vdc
11.5 Vdc Vin 17 Vdc
Load Regulation, TJ = 25°C (Note 2)
5.0 mA IO 1.5 A
Quiescent Current
Quiescent Current Change
11.5 Vdc Vin 26 Vdc
5.0 mA IO 1.0 A
Ripple Rejection
11.5 Vdc Vin 21.5 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz f 100 kHz
VO
8.65
9.0
9.35
VO
8.55
9.0
9.45
Regline
Regload
6.2
32
1.8
16
1.5
35
IB
3.4
8.0
IB
1.0
0.5
RR
56
61
VI – VO
2.0
Vn
10
Output Resistance f = 1.0 kHz
Short Circuit Current Limit (TA = 25°C)
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
Average Temperature Coefficient of Output Voltage
rO
ISC
Imax
TCVO
1.0
0.2
2.2
–0.5
Unit
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
µV/VO
m
A
A
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7812C/LM340T–12
Characteristic
Symbol
Min
Typ
Max
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA IO 1.0 A, PD 15 W)
14.5 Vdc Vin 27 Vdc
Line Regulation, TJ = 25°C (Note 2)
14.5 Vdc Vin 30 Vdc
16 Vdc Vin 22 Vdc
14.8 Vdc Vin 27 Vdc, IO = 1.0 A
Load Regulation, TJ = 25°C (Note 2)
5.0 mA IO 1.5 A
Quiescent Current
Quiescent Current Change
14.5 Vdc Vin 30 Vdc, IO = 1.0 A, TJ = 25°C
15 Vdc Vin 30 Vdc
5.0 mA IO 1.0 A
Ripple Rejection
15 Vdc Vin 25 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
VO
11.5
12
12.5
VO
11.4
12
12.6
Regline
Regload
3.8
24
0.3
24
48
8.1
60
IB
3.4
6.5
IB
0.7
0.8
0.5
RR
55
60
VI – VO
2.0
NOTES: 1. Tlow = –40°C for MC78XXAC, C, LM340AT–XX, LM340T–XX Thigh = +125°C for MC78XXAC, C, LM340AT–XX, LM340T–XX
2. 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.
Unit
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
MOTOROLA ANALOG IC DEVICE DATA
7
 

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