Mb3887 – FUJITSU MB3887 User Manual
Page 9
MB3887
9
(Ta
=
+
25
°
C, VCC
=
19 V, VCC (O)
=
19 V, VREF
=
0 mA)
* : Standard design value
(Continued)
Parameter
Sym-
bol
Pin
No.
Conditions
Value
Unit
Min
Typ
Max
5-2.
Error amplifier
block
[Error Amp3]
Threshold voltage
V
TH1
16
FB3
=
2 V, Ta
=
+
25
°
C
4.183
4.200
4.225
V
V
TH2
16
FB3
=
2 V,
Ta
=
−
10
°
C to
+
85
°
C
4.169
4.200
4.231
V
Input current
I
INE3
16
−
INE3
=
0 V
−
100
−
30
nA
Voltage gain
A
V
15
DC
100*
dB
Frequency
bandwidth
BW
15
AV
=
0 dB
2*
MHz
Output voltage
V
FBH
15
4.7
4.9
V
V
FBL
15
20
200
mV
Output source
current
I
SOURCE
15
FB3
=
2 V
−
2
−
1
mA
Output sink current
I
SINK
15
FB3
=
2 V
150
300
µ
A
OUTD terminal
output leak current
I
LEAK
11
OUTD
=
17 V
0
1
µ
A
OUTD terminal
output ON resistor
R
ON
11
OUTD
=
1 mA
35
50
Ω
6.
Current detec-
tion amplifier
block
[Current
Amp1, Current
Amp2]
Input offset voltage
V
IO
1,
12,
13,
24
+
INC1
=
+
INC2
=
−
INC1
=
−
INC2
=
3 V to VCC
−
3
+
3
mV
Input current
I
+
INCH
13,
24
+
INC1
=
+
INC2
=
3 V to VCC,
∆
V
IN
=
−
100 mV
20
30
µ
A
I
−
INCH
1, 12
+
INC1
=
+
INC2
=
3 V to VCC,
∆
Vin
=
−
100 mV
0.1
0.2
µ
A
I
+
INCL
13,
24
+
INC1
=
+
INC2
=
0 V,
∆
Vin
=
−
100 mV
−
180
−
120
µ
A
I
−
INCL
1, 12
+
INC1
=
+
INC2
=
0 V,
∆
Vin
=
−
100 mV
−
195
−
130
µ
A