MB39A119 Datasheet, PDF (9/53 Pages) Fujitsu Component Limited. – DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery

MB39A119
Error
amplifier
block
[Error
Amp2]
Error
amplifier
block
[Error
Amp3]
Current
detection
amplifier
block
[Current
Amp1]
(VCC = 19 V, VB = 0 mA, VREF = 0 mA, Ta = +25 °C)
Parameter
Symbol Pin No.
Conditions
Value
Unit
Min Typ Max
Input offset voltage
VIO 12, 13
⎯
⎯
1
5 mV
Input bias current
IB 12, 13
⎯
−50 −15 ⎯ nA
Voltage gain
AV
12, 13,
14
DC
⎯ 100* ⎯ dB
Frequency bandwidth
BW
12, 13,
14
AV = 0dB
⎯ 1.2* ⎯ MHz
Output voltage
VFBH
14
VFBL
14
⎯
2.9 3.1 ⎯ V
⎯
⎯ 0.8 0.9 V
Output source current ISOURCE 14 FB123 = 2 V
⎯ −60 −30 µA
Output sink current
ISINK
14 FB123 = 2 V
2.0 4.0 ⎯ mA
Threshold voltage
VTH1 14, 15 FB123 = 2 V
VTH2
14, 15
FB123 = 2 V,
Ta = −10 °C to + 85 °C
4.179 4.200 4.221 V
4.169 4.200 4.231 V
Voltage gain
AV 14, 15 DC
⎯ 100* ⎯ dB
Frequency bandwidth BW 14, 15 AV = 0 dB
⎯ 1.2* ⎯ MHz
Output voltage
VFBH
14
VFBL
14
⎯
2.9 3.1 ⎯ V
⎯
⎯ 0.8 0.9 V
Output source current ISOURCE 14 FB123 = 2 V
⎯ −60 −30 µA
Output sink current
ISINK
14 FB123 = 2 V
2.0 4.0 ⎯ mA
OUTD terminal leak
current
ILEAK
16 OUTD = 19 V
⎯
0
1 µA
OUTD terminal output
ON resistance
RON
16 OUTD = 1 mA
⎯ 35 50 Ω
Current detection
voltage
VOUTC1
VOUTC2
8
+ INC1 = − INC1 = 7 V to 19 V,
∆VIN = 100 mV
2.425
2.5
2.575
V
8
+ INC1 = − INC1 = 7 V to 19 V,
∆VIN = 20 mV
0.425
0.5
0.575
V
Voltage gain
AV
2, 3, 8
+ INC1 = − INC1 = 7 V to 19 V,
∆VIN = 100 mV
24.25
25
25.75 V/V
Input offset voltage
VIO 2, 3, 8 + INC1 = − INC1 = 7 V to 19 V −3 ⎯ +3 mV
Input current
IINC1 2, 3 + INC1 = − INC1 = 7 V to 19 V ⎯ 20 30 µA
IINC2
2, 3
+ INC1 = − INC1 = 7 V to 19 V,
CTL = 0 V
⎯
0
1 µA
Frequency bandwidth BW 2, 3, 8 AV = 0 dB
⎯ 3.0* ⎯ MHz
Output voltage
VOUTCH
8
VOUTCL
8
⎯
3.7 4.0 ⎯ V
⎯
⎯ 0.04 0.2 V
Output source current ISOURCE
8 -INE1 = 2 V
⎯ −1.2 −0.6 mA
Output sink current
ISINK
8 -INE1 = 2 V
100 200 ⎯ µA
* : Standard design value
(Continued)
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