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MC7812BT View Datasheet(PDF) - Motorola => Freescale

Part NameDescriptionManufacturer
MC7812BT THREE–TERMINAL POSITIVE FIXED VOLTAGE REGULATORS Motorola
Motorola => Freescale Motorola
MC7812BT Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
MC7800, MC7800A, LM340, LM340A Series
ELECTRICAL CHARACTERISTICS (continued) (Vin = 19 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7812C/LM340T–12
Characteristic
Symbol
Min
Typ
Max
Unit
Output Noise Voltage (TA = 25°C)
10 Hz f 100 kHz
Vn
10
µV/VO
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
1.1
m
0.2
A
2.2
A
–0.8
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 19 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7812AC/LM340AT–12
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
VO
11.75
12
12.25
Output Voltage (5.0 mA IO 1.0 A, PD 15 W)
14.8 Vdc Vin 27 Vdc
Line Regulation (Note 2)
14.8 Vdc Vin 30 Vdc, IO = 500 mA
16 Vdc Vin 22 Vdc, IO = 1.0 A
14.5 Vdc Vin 27 Vdc, TJ = 25°C
VO
11.5
12
12.5
Regline
3.8
18
2.2
20
6.0
120
Load Regulation (Note 2)
5.0 mA IO 1.5 A, TJ = 25°C
5.0 mA IO 1.0 A
Regload
25
25
Quiescent Current
IB
3.4
6.0
Quiescent Current Change
15 Vdc Vin 30 Vdc, IO = 500 mA
14.8 Vdc Vin 27 Vdc, TJ = 25°C
5.0 mA IO 1.0 A, TJ = 25°C
Ripple Rejection
15 Vdc Vin 25 Vdc, f = 120 Hz, IO = 500 mA
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
IB
0.8
0.8
0.5
RR
55
60
VI – VO
2.0
Output Noise Voltage (TA = 25°C)
10 Hz f 100 kHz
Vn
10
Output Resistance (f = 1.0 kHz)
rO
1.1
Short Circuit Current Limit (TA = 25°C)
Vin = 35 Vdc
Peak Output Current (TJ = 25°C)
ISC
Imax
0.2
2.2
Average Temperature Coefficient of Output Voltage
TCVO
–0.8
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.
Vdc
Vdc
mV
mV
mA
mA
dB
Vdc
µV/VO
m
A
A
mV/°C
8
MOTOROLA ANALOG IC DEVICE DATA
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