Datasheet

MC7800, MC7800A, MC7800AE, NCV7800
http://onsemi.com
10
ELECTRICAL CHARACTERISTICS (V
in
= 15 V, I
O
= 1.0 A, T
J
= T
low
to 125°C (Note 15), unless otherwise noted)
Characteristic
Symbol
MC7809AB/MC7809AC
Unit
Min Typ Max
Output Voltage (TJ = 25°C) VO 8.82 9.0 9.18 Vdc
Output Voltage (5.0 mA ≤ IO ≤ 1.0 A, PD ≤ 15 W)
11.5 Vdc ≤ V
in ≤ 24 Vdc
VO
8.65 9.0 9.35
Vdc
Line Regulation (Note 16)
11.5 Vdc ≤ V
in ≤ 26 Vdc, IO = 500 mA
12 Vdc ≤ Vin ≤ 17 Vdc, IO = 1.0 A
11.5 Vdc ≤ Vin ≤ 24 Vdc, TJ = 25°C
Regline
−
−
−
6.2
1.8
5.2
16
7.0
16
mV
Load Regulation (Note 16)
5.0 mA ≤ I
O ≤ 1.5 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
250 mA ≤ I
O ≤ 750 mA
Regload
−
−
−
−
−
−
25
25
15
mV
Quiescent Current IB − 3.3 6.0 mA
Quiescent Current Change
11.5 Vdc ≤ Vin ≤ 26 Vdc, IO = 500 mA
11.5 Vdc ≤ V
in ≤ 24 Vdc, IO = 1.0 A, TJ = 25°C
5.0 mA ≤ IO ≤ 1.0 A
DIB
−
−
−
−
−
−
0.8
0.8
0.5
mA
Ripple Rejection
11.5 Vdc ≤ V
in ≤ 21.5 Vdc, f = 120 Hz, IO = 500 mA
RR
56 61 −
dB
Dropout Voltage (IO = 1.0 A, TJ = 25°C) VI _ VO 2.0 Vdc
Output Noise Voltage (TA = 25°C)
10 Hz ≤ f ≤ 100 kHz
Vn
− 10 −
mV/VO
Output Resistance f = 1.0 kHz rO − 1.0 −
mW
Short Circuit Current Limit (TA = 25°C)
V
in = 35 Vdc
ISC
− 0.2 −
A
Peak Output Current (TJ = 25°C) Imax − 2.2 − A
Average Temperature Coefficient of Output Voltage TCVO − −0.5 − mV/°C
15.T
low
=0°C for MC78XXC, MC78XXAC,
= *40°C for NCV78XX, MC78XXB, MC78XXAB.
16.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.