MB3887 Datasheet, PDF (9/33 Pages) Fujitsu Component Limited. – DC/DC Converter IC for Charging Li-ion battery

MB3887
(Ta = +25 °C, VCC = 19 V, VCC (O) = 19 V, VREF = 0 mA)
Parameter
Sym- Pin
bol No.
Conditions
Value
Unit
Min
Typ
Max
VTH1 16 FB3 = 2 V, Ta = +25 °C 4.183 4.200 4.225 V
Threshold voltage
VTH2
16
FB3 = 2 V,
Ta = −10 °C to +85 °C
4.169
4.200
4.231
V
Input current
IINE3 16 −INE3 = 0 V
−100 −30
⎯ nA
Voltage gain
AV 15 DC
⎯
100*
⎯ dB
5-2.
Error amplifier
block
[Error Amp3]
Frequency
bandwidth
Output voltage
Output source
current
BW 15 AV = 0 dB
VFBH 15
⎯
VFBL 15
⎯
ISOURCE 15 FB3 = 2 V
⎯
2*
⎯ MHz
4.7
4.9
⎯
V
⎯
20
200 mV
⎯
−2
−1 mA
Output sink current ISINK 15 FB3 = 2 V
150
300
⎯ µA
OUTD terminal
output leak current
ILEAK
11 OUTD = 17 V
⎯
0
1
µA
OUTD terminal
output ON resistor
RON
11 OUTD = 1 mA
⎯
35
50
Ω
Input offset voltage VIO
1,
12,
13,
24
+INC1 = +INC2 =
−INC1 = −INC2 =
3 V to VCC
−3
⎯
+3 mV
6.
Current detec-
tion amplifier
block
[Current
Amp1, Current _{Input current}
Amp2]
I+INCH
13,
24
+INC1 = +INC2 =
3 V to VCC,
∆VIN = −100 mV
+INC1 = +INC2 =
I−INCH 1, 12 3 V to VCC,
∆Vin = −100 mV
I+INCL
13, +INC1 = +INC2 = 0 V,
24 ∆Vin = −100 mV
⎯
⎯
−180
20
0.1
−120
30 µA
0.2 µA
⎯ µA
I−INCL
1, 12
+INC1 = +INC2 = 0 V,
∆Vin = −100 mV
−195
−130
⎯ µA
* : Standard design value
(Continued)
9