MB39A132QN-G-ERE1 Fujitsu Semiconductor America Inc, MB39A132QN-G-ERE1 Datasheet - Page 20

• 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

MB39A132
(4) Overcurrent detection block (Over Current Det.)
Charge current and overcurrent detection value by R
(5) Overtemperature detection
20
Overcurrent detection value : Ioc det(A) =
When this block detects that the potential difference between the +INC2 pin (pin 12) and the -INC2 pin (pin
13) exceeds 0.2 V (Typ), and excessive current flows in the charging direction due to a sudden change of
load, this block will determine that overcurrent occurs, and sets the CS pin (pin 19) to "L" level and the ON
duty to 0%. Afterward, when the overcurrent ceases to exist, the soft-start operation is started.
The circuit protects an IC from heat destruction. If the temperature at the joint reaches +150 °C, the circuit
set OUT1 (pin 30) and OUT2 (pin 27) pins to "L", and stops voltage output.
In addition, if the temperature at the joint drops to +125 °C, the voltage output restarts again.
When designing a DC/DC power supply system, do not exceed the absolute maximum ratings of this IC in
order to prevent overtemperature protection from being activated.
20 mΩ
15 mΩ
R
S
0.5 V to 4.4 V
0.5 V to 4.4 V
ADJ2
0.85 A to 8.65 A
1.13 A to 11.5 A
Io
0.2(V)
R
S
(Ω)
S
value (example)
OCDet
10 A
13 A
DS04–27265–3E