SCD7800, SCD7800A
http://onsemi.com
11
ELECTRICAL CHARACTERISTICS (V
in
= 23 V, I
O
= 500 mA, T
J
= T
low
to T
high
(Note 16), unless otherwise noted)
SCD7815B SCD7815C
Characteristic Symbol Min Typ Max Min Typ Max Unit
Output Voltage (T
J
= 25°C) V
O
14.4 15 15.6 14.4 15 15.6 Vdc
Output Voltage (5.0 mA ≤ I
O
≤ 1.0 A, P
D
≤ 15 W) V
O
Vdc
17.5 Vdc ≤ V
in
≤ 30 Vdc − − − 14.25 15 15.75
18.5 Vdc ≤ V
in
≤ 30 Vdc 14.25 15 15.75 − − −
Line Regulation, T
J
= 25°C (Note 17) Reg
line
mV
17.9 Vdc ≤ V
in
≤ 30 Vdc − 8.5 300 − 8.5 30
20 Vdc ≤ V
in
≤ 26 Vdc − 3.0 150 − 3.0 28
Load Regulation, T
J
= 25°C (Note 17) Reg
load
− 1.8 300 − 1.8 55 mV
5.0 mA ≤ I
O
≤ 1.5 A
Quiescent Current I
B
− 3.5 8.0 − 3.5 6.5 mA
Quiescent Current Change
DI
B
mA
17.5 Vdc ≤ V
in
≤ 30 Vdc − − − − − 0.8
17.5 Vdc ≤ V
in
≤ 30 Vdc, I
O
= 1.0 A, T
J
= 25°C − − 1.0 − − 0.7
5.0 mA ≤ I
O
≤ 1.0 A − − 0.5 − − 0.5
Ripple Rejection RR − 58 − 54 58 − dB
18.5 Vdc ≤ V
in
≤ 28.5 Vdc, f = 120 Hz
Dropout Voltage (I
O
= 1.0 A, T
J
= 25°C) V
I
− V
O
− 2.0 − − 2.0 − Vdc
Output Noise Voltage (T
A
= 25°C) V
n
− 10 − − 10 −
mV/V
O
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz r
O
− 1.2 − − 1.2 −
mW
Short Circuit Current Limit (T
A
= 25°C) I
SC
− 0.2 − − 0.2 − A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25°C) I
max
− 2.2 − − 2.2 − A
Average Temperature Coefficient of Output Voltage TCV
O
− −1.0 − − −1.0 − mV/°C
16.T
low
=0°C for SCD78XXAC, C T
high
= +125°C for SCD78XXAC, C
= *40°C for SCD78XXB, SCD78XXAB
17.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.
