FUJITSU MB3878 - Manual (Page 6)

MB3878
6
■ ■ ■ ■ ELECTRICAL CHARACTERISTICS
(Ta
= +
25
°
C, VCC
=
19 V, VCC (O)
=
19 V, VREF
=
0 mA)
* : Standard design value.
(Continued)
Parameter Symbol
Pin
No.
Conditions
Value
Unit
Min Typ Max
Reference
voltage block
(Ref)
Output voltage V
REF
6
Ta
= +
25
°
C 4.995 5.000 5.045 V
Ta
= −
30
°
C to
+
85
°
C 4.945 5.000 5.055 V
Input stability Line 6 VCC
=
7 V to 25 V

3 10 mV
Load stability Load 6 VREF
=
0 mA to
−
1 mA

1 10 mV
Short-circuit
output current
Ios 6 VREF
=
1 V
−
25
−
15
−
5 mA
Under voltage
lockout protection
circuit block
(UVLO)
Threshold voltage
V
TLH
18
VCC
=
VCC (O) ,
VCC
=
6.1 6.4 6.7 V
V
THL
18
VCC
=
VCC (O) ,
VCC
=
5.1 5.4 5.7 V
Hysteresis width V
H
18 VCC
=
VCC (O) 0.7 1.0 1.3 V
Threshold voltage
V
TLH
6 VREF
=
2.6 2.8 3.0 V
V
THL
6 VREF
=
2.4 2.6 2.8 V
Hysteresis width V
H
6 V
H
=
V
TLH
−
V
THL
0.05 0.20 0.35 V
Soft-start block
(SOFT)
Charge current I
CS
22
 −
1.3
−
0.8
−
0.5
µ
A
Triangular
waveform
oscillator circuit
block (OSC)
Oscillation
frequency
f
OSC
20 RT
=
47 k
Ω
260 290 320 kHz
Frequency
temperature
stability
∆
f/fdt 20 Ta
= −
30
°
C to
+
85
°
C

1*
 %
Error amplifier
block
(Error Amp.1,
Error Amp.2)
Input offset
voltage
V
IO
3, 4,
8, 9
FB1
=
FB2
=
2 V

1 5 mV
Input bias current I
B
3, 4,
8, 9
 −
100
−
30

nA
Common mode
input voltage
range
V
CM
3, 4,
8, 9

0

V
CC
−
1.8
V
Voltage gain A
V
5, 7 DC

100*

dB
Frequency
bandwidth
B
W
5, 7 A
V
=
0 dB

2.0*

MHz
Output voltage
V
FBH
5, 7

4.7 4.9

V
V
FBL
5, 7
 
20 200 mV
Output source
current
I
SOURCE
5, 7 FB1
=
FB2
=
2 V
 −
2.0
−
0.6 mA
Output sink
current
I
SINK
5, 7 FB1
=
FB2
=
2 V 150 300
 µ
A