STC7800 Datasheet, PDF (7/11 Pages) Suntac Electronic Corp. – 1.0 A Positive Voltage Regulators

STC7800 Series
ELECTRICAL CHARACTERISTICS (V_in = 23 V, I_O = 1.0 A, T_J = T_low to T_high (Note 9), unless otherwise noted)
MC78MC7815
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T_J = 25°C)
Output Voltage (5.0 mA ≤ I_O ≤ 1.0 A, P_D ≤ 15 W)
17.9 Vdc ≤ V_in ≤ 30 Vdc
Line Regulation (Note 10)
17.9 Vdc ≤ V_in ≤ 30 Vdc, I_O = 500 mA
20 Vdc ≤ V_in ≤ 26 Vdc
17.5 Vdc ≤ V_in ≤ 30 Vdc, I_O = 1.0 A, T_J = 25°C
Load Regulation (Note 10)
5.0 mA ≤ I_O ≤ 1.5 A, T_J = 25°C
5.0 mA ≤ I_O ≤ 1.0 A
250 mA ≤ I_O ≤ 750 mA
Quiescent Current
Quiescent Current Change
17.5 Vdc ≤ V_in ≤ 30 Vdc, I_O = 500 mA
17.5 Vdc ≤ V_in ≤ 30 Vdc, I_O = 1.0 A, T_J = 25°C
5.0 mA ≤ I_O ≤ 1.0 A
Ripple Rejection
V_O
14.7
15
15.3
Vdc
V_O
14.4
15
15.6
Vdc
Reg_line
−
mV
8.5
20
−
3.0
22
−
7.0
20
Reg_load
−
mV
1.8
25
−
1.5
25
−
1.2
15
I_B
−
DI_B
−
3.5
6.0
mA
mA
−
0.8
−
−
0.8
−
−
0.5
RR
60
80
−
dB
18.5 Vdc ≤ V_in ≤ 28.5 Vdc, f = 120 Hz, I_O = 500 mA
Dropout Voltage (I_O = 1.0 A, T_J = 25°C)
Output Noise Voltage (T_A = 25°C)
10 Hz ≤ f ≤ 100 kHz
V_I − V_O
−
2.0
−
Vdc
V_n
−
10
−
mV/V_O
Output Resistance f = 1.0 kHz
r_O
−
1.2
−
mW
Short Circuit Current Limit (T_A = 25°C)
I_SC
−
0.2
−
A
V_in = 35 Vdc
Peak Output Current (T_J = 25°C)
I_max
−
2.2
−
A
Average Temperature Coefficient of Output Voltage
TCV_O
−
−1.0
−
mV/°C
9. T_low = 0°C for STC7800 Series
T_high = +125°C for STC7800 Series
= *40°C for STC7800 Series
10. Load and line regulation are specified at constant junction temperature. Changes in V_O due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
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