MB39A132QN-G-ERE1 Fujitsu Semiconductor America Inc, MB39A132QN-G-ERE1 Datasheet - Page 3

• 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

Description of Functions
that the voltage at the ACIN pin has dropped below the voltage
setting and switches the ACOK pin in the AC adapter voltage
detection block to Hi-Z. The power is supplied from the VCC
pin or the VIN pin with higher voltage. This function operates
regardless of the input level at the CTL pin.
Figure 3 Conversion Efficiency of MB39A134
Figure 5 Transient Waveforms under Load Step Response in MB39A132
The AC adapter voltage detection block (AC Comp.) detects
AC adapter voltage detection circuit
V
（V）
（V）
OUT2
18
16
14
10
Vo
Conversion efficiency−charge current (constant voltage mode)
100
0
98
96
94
92
90
88
86
84
82
80
(Constant Current Mode), Battery insertion
New Products
0.0
V
V
OUT2
Vo
OUT1
Io
Conditions: V
0.5
Conditions: V
IN
1.0
Charge current Io (A)
＝19V，Io＝2.85A，Ta＝＋25℃
4 cells
3 cells
2 cells
IN
＝19V，Ta＝＋25℃
1.5
2.0
MB39A132 / MB39A134
2ms/div
2.5
3.0
（V）
V
Io （A）
OUT1
20
0
0
4
2
connecting a resistor to the RT pin.
and OUT2 pin are set to level “ L ” and voltage output is stopped.
Voltage output is resumed with the soft-start function when the
junction temperature drops to 125
IC from heating.
Figure 4 Drooping Characteristic of MB39A134
Figure 6 Transient Waveforms under Load Step Response in MB39A132
The oscillation frequency can be set at 100kHz to 2MHz by
When the junction temperature reaches 150
Clock generation block
Over temperature protection circuit (OTP function)
（V）
V
OUT2
18
16
14
10
(V)
Vo
0
(Constant Current Mode), Battery removal
20
18
16
14
12
10
8
6
4
2
0
0.0
Conditions: V
Conditions: V
0.5
Charge voltage−charge current
1.0
IN
V
V
＝19V，Io＝2.85A，Ta＝＋25℃
4 cells
3 cells
2 cells
Vo
OUT1
OUT2
Charge current Io (A)
Io
IN
2008
＝19V，Io＝2.85A，Ta＝＋25℃
1.5
℃
No.3
2.0
. This function prevents the
2ms/div
2.5
FIND Vol.26
℃
, the OUT1 pin
3.0
（V）
3.5
V
Io(A)
20
OUT1
0
4
2
0
3