MB3887_06 Datasheet, PDF (9/34 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
+INC1 = +INC2 =
VOUTC1 2, 10 3 V to VCC,
∆Vin = −100 mV
1.9
2.0
2.1
V
Current detection
voltage
+INC1 = +INC2 =
VOUTC2 2, 10 3 V to VCC,
∆Vin = −20 mV
+INC1 = +INC2 =
VOUTC3 2, 10 0 V to 3 V,
∆Vin = −100 mV
0.34
0.40
0.46 V
1.8
2.0
2.2
V
6.
Current
detection
amplifier block
[Current Amp1,
Current Amp2]
In-phase input
voltage range
Voltage gain
+INC1 = +INC2 =
VOUTC4 2, 10 0 V to 3 V,
∆Vin = −20 mV
1,
VCM
12,
13,
⎯
24
+INC1 = +INC2 =
AV 2, 10 3 V to VCC,
∆Vin = −100 mV
0.2
0.4
0.6
V
0
⎯
VCC
V
19
20
21 V/V
Frequency
bandwidth
BW 2, 10 AV = 0 dB
⎯
2*
⎯ MHz
VOUTCH 2, 10
⎯
Output voltage
VOUTCL 2, 10
⎯
4.7
4.9
⎯
V
⎯
20
200 mV
Output source
current
ISOURCE 2, 10 OUTC1 = OUTC2 = 2 V ⎯
−2
−1 mA
Output sink cur-
rent
ISINK 2, 10 OUTC1 = OUTC2 = 2 V 150
300
⎯
µA
7.
PWM
VTL
5, 7,
15
Duty cycle = 0 %
comparator Threshold voltage
block
[PWM Comp.]
VTH
5, 7,
15
Duty cycle = 100 %
1.4
1.5
⎯
V
⎯
2.5
2.6
V
* : Standard design value
(Continued)
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