Samsung SR-S2026C - Page 97

ELECTRICAL
CHARACTERISTICS
KA7812/I
(Refer
to
test
circuit,
Tun
<
Ts
<
Tux,
lo
=
500MA,
Vi
=
19V,
Ci
=
0.33nF,
Co
=
0.1xF,
unless
otherwise
specified)
Characteristic Test Conditions
| Min] Typ Max! Minj Typ Max)
| T. = 25°C 14.5] 12 12.511.5! 12 12.5)
Output
Voltage
Ve
|
5.0mA
<
1.0A,
Po
<
15W}
|
i
Vv
Vi = 14.5V to 27V 14 12 126
Vi = 15.5V to 27V 11.4) 12 12.6
W= 14.5 to 30V /10 [240] | 10 [240
Line
Regulation
/
mV
Vi= 16 to 22V 3.0 /120 13.01120 |
lb=SmAto15A | [11 [240] | 11 j240]
Load
Regulation
mV
lo=250mA to 750mA 5.0/120 5.01120
Quiescent
Current
lo
Ty
=
25°C
5.1]
8
5.11
8
mA
| fo=SmAto1.0A =| —-: 10.1] 0.5 0.1/0.5 |
Quiescent
Current
Change
|
Allo
Vi
=
14.5V
to
30V
1.0!
mA
Vi= 15V to 30V 0.5| 1.0
Output
Voltage
Drift
|
AVol
AT
lo=
5mA
1
i
-1
!
mV/'C
Output
Noise
Voltage
Vw
|
f=10Hzto
100KHz,Th=25'C!
|
76
|
176
|
wv
Ripple
|
f
=
120Hz
|
ee
RR
55
|
71
55
|
71
|
dB
Rejection
Vi
=
15V
to
25V:
[4
|
Dropout
Voltage
Ve
lo=
1A,
Ts
=
25°C
2
i
eet
—1 —- u —+— a
Output
Resistance
Ro
f=
1KHz
18
18
mQ
Short
Circuit
Current
le
|
|
Wi=85V,
Ta=
25°C
230
|
1230
mA
Peak
Current
li
Meer
T=
25°C
2.2
te
12.2
|
A
* Twin < Ts < Tax
KA78XXI : Tw = -40°C, Twax = 125°C
KA78XX, Tun = OC, Tux = 125°C
*
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 is used.