BL78XX
BL7808 ELECTRICAL CHARACTERISTICS
(Re fe r to the test circu it, -2 0 °C
＜
T
J
＜
85 °C , Io=500 mA , Vi= 14V, C i=0.33µ F, Co=0 .1µ F,
unless o the rwise spe cifie d
Charac te ristics
S ymb o l
Test Co nd ition s
T
J
=+25°C
Min
7.7
7.6
Typ
8.0
8.0
5.0
2.0
10
5.0
5.0
0.05
0.5
-0. 8
52
Max
8.3
Unit
O u t p u t Vo l t a g e
Vo
5.0mA
≤
Io
≤
1.0A,Po
≤
15W
Vi = 1 0 . 5 V t o 2 3 V
Vi = 1 0 . 5 V t o 2 5 V
V
8.4
160
mV
80
160
mV
80
8.0
0.5
mA
1.0
mV/°C
Line Regulation *
Regline
T
J
=+25°C
Vi = 11 . 5 V t o 1 7 V
Io=5.0mA to 1.5A
Lo a d R e g u l a t i o n *
Regload
T
J
=+25°C
Io=250mA to 750mA
Quiescent Current
I
Q
T
J
=+25°C
Io=5.0mA to 1.0A
mA
Quiescent Current
Change
Δ
I
Q
Vi = 1 0 . 5 V t o 2 5 V
O u t p u t Vo l t a g e D r i f t
O u t p u t N o i s e Vo l t a g e
Ripple Rejection
D r o p o u t Vo l t a g e
Short Circuit Current
Peak Current
Δ
Vo /
Δ
T I o = 5 . 0 m A
V
N
RR
V
Drop
I
SC
I
PK
f = 1 0 H z t o 1 0 0 K H z , T
A
= + 2 5 °C
f=120Hz
Vi = 11 . 5 V t o 2 1 . 5 V
µ V/Vo
dB
V
mA
A
56
73
2
230
2.2
Io=1A, T
J
=+25°C
Vi = 3 5 V, T
A
= + 2 5 ° C
T
J
=+25°C
*Loa d an d line reg u la tion are spec ifie d a t c o nstan t ju nc tion te mpe ra tu re . Cha nge s in Vo
due to he a ting e ffe c ts must b e tak en in to a cc oun t sepa ra tel y. P u lse testing with lo w du ty
is u sed .
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