MB39A119 Datasheet, PDF (2/53 Pages) Fujitsu Component Limited. – DC/DC Converter IC of Synchronous Rectification for charging Li-ion battery

MB39A119
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• Built-in two constant current control circuits
• Analog control of constant current value is possible ( + INE1, + INE2 terminal)
• Built-in output stage for N-ch MOS FET synchronous rectification
• Built-in charge stop function at low input voltage
• Output voltage setting accuracy : 4.2 V ± 0.74 % (Ta= − 10 °C to + 85 °C)
• Built-in high accuracy charge current detection amplifier : ± 4 %
(At input voltage difference 100 mV with Voltage gain 24.5 (V/V)
• Built-in high accuracy input current detection amplifier : ± 3 %
(At input voltage difference 100 mV with Voltage gain 25 (V/V)
• Arbitrary output voltage can be set by external resistor
• In IC standby mode, output voltage setting resistor is made to be open to prevent inefficient current loss
• Quiescent current : 1.9 mA (Typ)
• Standby current : 0 µA (Typ)
• Package : QFN28
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