MB39A132QN-G-ERE1 Fujitsu Semiconductor America Inc, MB39A132QN-G-ERE1 Datasheet - Page 21

• 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

3. Detection Function
AC adapter voltage detection block (AC Comp.)
DS04–27265–3E
When the AC adapter voltage detection block (AC Comp.) detects that ACIN pin (pin 4) voltage is below
1.25 V (Typ), it and sets ACOK pin (pin 5) in the AC adapter voltage detection block to Hi-Z. In addition,
power is supplied from the VCC pin (pin 1) or the VIN pin (pin 24), whichever has higher voltage.
This function operates regardless of the input level of the CTL1 pin (pin 23) and CTL2 pin (pin 32).
AC adapter detection voltage setting
V
Vth = (R1 + R2) / R2 × 1.25 V
V
Vth = (R1 + R2) / R2 × 1.24 V
IN
IN
ACIN
H
L
= Low to High
= High to Low
AC adapter
ACOK
Hi-Z
L
R1
R2
4
ACIN
<AC Comp.>
5
ACOK
MB39A132
Microcontroller
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