MB39A132QN-G-ERE1 Fujitsu Semiconductor America Inc, MB39A132QN-G-ERE1 Datasheet - Page 25

• 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

■ SETTING DYNAMICALLY-CONTROLLED CHARGING
DS04–27265–3E
With the connection shown below, when the voltage of the AC adapter (V
of the equation shown below, the converter becomes dynamically-controlled charging mode and then controls
charge current to maintain a constant power level of the AC adapter.
AC adapter voltage in dynamically-controlled-charging mode: Vth
VREF = Reference voltage(5.0 V Typ), A
Vth = [( 1 −
V
IN
R2
R1
Av
1
×
VREF(5 V)
R3 + R4
R4
R3
R4
) VREF + 3 mV ] ×
OUTC1
+INC1
-INE1
-INC1
ADJ1
V
= Current detection amplifier block voltage gain (25.0 Typ)
10
3
2
7
9
<Current Amp1>
R1 + R2
R2
IN
) drops and reaches Vth, the result
<Error Amp1>
MB39A132
25