MB3876 Overview
The MB3874 and MB3876 are parallel charging DC/DC converter ICs suitable for down-conversion, which uses pulse width modulation (PWM) for controlling the output voltage and current independently. These ICs can dynamically control the secondary battery’s charge current by detecting a voltage drop in an AC adapter in order to keep its power constant (dynamically-controlled charging). The charging method enables quick...
MB3876 Key Features
- Detecting a voltage drop in the AC adapter and dynamically controlling the charge current (Dynamically-controlled chargi
- High efficiency : 93 %(In reverse-current preventive diode)
- Wide range of operating supply voltages : 7 V to 25 V
- Output voltage precision (Built-in output voltage setting resistor ) : ± 0.8 % (Ta = + 25 °C)
- High precision reference voltage source : 4.2 V ± 0.8 % (Continued)
- Support for frequency setting using an external resistor (Frequency setting capacitor integrated) :100 kHz to 500 kHz
- Built-in current detector amplifier with wide in-phase input voltage range : 0 V to VCC
- Built-in standby current function : 0 µA (Typ.)
- Built-in soft start function
- Capable of parallel charging (Charging the two battery packs at a time)
MB3876 Applications
- Detecting a voltage drop in the AC adapter and dynamically controlling the charge current (Dynamically-controlled charging)
- High efficiency : 93 %(In reverse-current preventive diode)
- Wide range of operating supply voltages : 7 V to 25 V
- Output voltage precision (Built-in output voltage setting resistor ) : ± 0.8 % (Ta = + 25 °C)