MB39A119 Overview
The MB39A119 is the Nch MOS drive of the synchronous rectification type DC/DC converter IC using pulse-width modulation (PWM) type that can charge Li-ion battery from 1 cell to 4 cells and suitable for down-conversion. This IC integrates built-in parator for the voltage detection of the AC adapter and switches the power supply to the AC adapter or battery automatically, enabling supply it to system. In addition, the...
MB39A119 Key Features
- High efficiency : 97 % (Max) High-frequency operation : 1 MHz (Max) Built-in off time control function Built-in voltage
- PACKAGE
- Built-in two constant current control circuits
- Analog control of constant current value is possible ( + INE1, + INE2 terminal)
- Built-in output stage for Nch 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
- Built-in high accuracy input current detection amplifier : ± 3 % (At input voltage difference 100 mV with Voltage gain 2