MB39A132QN-G-ERE1 Fujitsu Semiconductor America Inc, MB39A132QN-G-ERE1 Datasheet - Page 2

• Manufacturer Part Number: MB39A132QN-G-ERE1
• Description: IC CONV DC-DC LI-ION 32QFN
• Manufacturer: Fujitsu Semiconductor America Inc

Specifications of MB39A132QN-G-ERE1

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Operating Temperature: 25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 865-1020

desired voltage using an external resistor.
operates independently from the DC/DC converter control
block, which outputs a Hi-Z signal to the ACOK pin when the
AC adapter voltage is lower than the specified voltage.
drops in the AC adapter and it dynamically controls the charge
current (Dynamically Controlled Charging) for the rechargeable
battery so that the voltage drop is stabilized. It is also equipped
with a soft-start function to prevent the excessive charge current
caused by the inrush current at power startup (MB39A132).
Product Features
●
●
●
●
●
●
* Both products can set the desired output voltage levels with external resistors.
Figure 1 Conversion Efficiency of MB39A132
Rectification type:
Support 2, 3, and 4 cell battery pack
Two built-in constant current control loops
Built-in AC adapter detection function (ACOK pin)
Charge voltage setting accuracy:
Built-in charge voltage control without external setting
resistor
This product has a built-in AC adapter detection function that
Like our existing charging ICs, it is capable of detecting voltage
MB39A132: Nch/Nch synchronous rectification
MB39A134: Pch/Di asynchronous rectification
MB39A132:
MB39A134:
MB39A132: (4.00V/cell, 4.20V/cell, and 4.35V/cell)
MB39A134: (4.10V/cell and 4.20V/cell)
Conversion efficiency−charge current (constant voltage mode)
100
98
96
94
92
90
88
86
84
82
80
New Products
0.0
±
±
0.5
0.7
0.5
Conditions: V
％
％
(Ta
(Ta
1.0
Charge current Io (A)
＝ ＋
＝ −
4 cells
3 cells
2 cells
25
10
IN
＝19V, Ta ＝＋25℃
1.5
℃
℃
to
to
＋
＋
2.0
85
85
MB39A132 / MB39A134
℃
℃
)
)
2.5
3.0
●
●
●
●
●
●
●
●
MB39A132 and MB39A134, and
the drooping characteristics of each.
the transient waveforms under load step response when the
battery is inserted or removed.
block diagrams of MB39A132 and MB39A134.
Figure 2 Drooping Characteristic of MB39A132
Adjustable charging current with external resistor
Two built-in high accuracy current detection amplifiers:
Built-in charging current control setting without external
setting resistor (Rs=20m
Support for switching frequency setting using an external
resistor (Frequency setting capacitor integrated)
In standby mode (Icc
function is operated
Built-in charge stop function at low VCC
Built-in soft-start function adjustable time (MB39A132)
Built-in independent operation function of AC adapter side
current detection amplifier
Package: MB39A132: QFN-32
Detection accuracy:
Input offset voltage (MB39A132):
Current Amp2)
Input offset voltage (MB39A134): 0mV (Current Amp1)
＋
100kHz to 2MHz
Figures 1
3mV (Current Amp2)
20
18
16
14
12
10
8
6
4
2
0
MB39A134: TSSOP-24
0.0
and
Conditions: V
0.5
3
present the conversion efficiencies of
Charge voltage−charge current
±
＝
1.0
1mV (
6 μA,Typ.) , only AC adapter detection
4 cells
3 cells
2 cells
Charge current Io (A)
IN
Ω
2008
＝19V，Io＝2.85A，Ta＝＋25℃
: 2.85A)
1.5
＋
INC1,
Figures 9
No.3
2.0
Figures 2
＋
Figures 5
＋
3mV (Current Amp1,
INC2
2.5
FIND Vol.26
and
＝
10
3.0
and
3V to VCC)
to
present the
4
8
3.5
present
present
2