MC7800 Datasheet, PDF (12/16 Pages) Motorola, Inc – THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS

MC7800, MC7800A, LM340, LM340A Series
ELECTRICAL CHARACTERISTICS (continued) (Vin = 33 V, IO = 500 mA, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7824C
Characteristic
Symbol
Min
Typ
Max
Unit
Ripple Rejection
28 Vdc ≤ Vin ≤ 38 Vdc, f = 120 Hz
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
RR
50
54
VI – VO
–
2.0
Vn
–
10
–
dB
–
Vdc
–
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
–
1.4
–
mΩ
–
0.2
–
A
–
2.2
–
A
–
–2.0
–
mV/°C
ELECTRICAL CHARACTERISTICS (Vin = 33 V, IO = 1.0 A, TJ = Tlow to Thigh [Note 1], unless otherwise noted.)
MC7824AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (TJ = 25°C)
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
27.3 Vdc ≤ Vin ≤ 38 Vdc
Line Regulation (Note 2)
27 Vdc ≤ Vin ≤ 38 Vdc, IO = 500 mA
30 Vdc ≤ Vin ≤ 36 Vdc, IO = 1.0 A
30 Vdc ≤ Vin ≤ 36 Vdc, TJ = 25°C
26.7 Vdc ≤ Vin ≤ 38 Vdc, IO = 1.0 A, TJ = 25°C
Load Regulation (Note 2)
5.0 mA ≤ IO ≤ 1.5 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
250 mA ≤ IO ≤ 750 mA
Quiescent Current
Quiescent Current Change
27.3 Vdc ≤ Vin ≤ 38 Vdc, IO = 500 mA
27 Vdc ≤ Vin ≤ 38 Vdc, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
Ripple Rejection
28 Vdc ≤ Vin ≤ 38 Vdc, f = 120 Hz, IO = 500 mA
Dropout Voltage (IO = 1.0 A, TJ = 25°C)
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
VO
23.5
24
24.5
Vdc
VO
23.2
24
25.8
Vdc
Regline
mV
–
11.5
25
–
3.8
28
–
3.8
12
–
10
25
Regload
–
–
–
mV
2.1
15
2.0
25
1.8
15
IB
–
3.6
6.0
mA
∆IB
mA
–
–
0.8
–
–
0.8
–
–
0.5
RR
45
54
–
dB
VI – VO
–
2.0
–
Vdc
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
–
1.4
–
mΩ
–
0.2
–
A
–
2.2
–
A
–
–2.0
–
mV/°C
NOTES: 1. Tlow = –40°C for MC78XXAC, C Thigh = +125°C for MC78XXAC, C
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.
12
MOTOROLA ANALOG IC DEVICE DATA