MM3659

We have lineup of charge control IC that are suitable for charging 1-cell Li-ion battery and Li polymer battery.
This IC features stable charging by high accurate voltage/current control.
High safety is achieved by abnormal protection by battery temperature detection using external thermistor, and charging timer.
In addition, it is possible to support a wide range of charging voltage and charging current, so can be built a charging system compatible with various battery.

Outline

This IC is 4.5A switch mode charge control IC with power path with USB OTG.

Synchronous switching charge control enables power supply to system and charge control with low heat generation and high efficiency simultaneously.

Expensive current sensing resistor, Power FET, and Diode for reverse current protection are not necessary, so BOM cost can be reduced.

Switching Charger IC
1. High efficiency 4.5A 1.5MHz switch mode charge control and power supply management to system.
2. Wide range of input voltage(3.9V～17V) ex)USB Power Delivery 5V, 9V, 15V
3. USB Battery Charging Spec.1.2 compliant,can be set input current limit (100mA～3000mA)
4. Built-in USB OTG function (5V/1.3A),can be suppiled power to external device
5. I2C interface enbles optimum customization ex) charge voltage/charge current/charge timer, others
Digital Still camera, Digital Video camera, other mobile device

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Parameter	Specifications	Unit
Rating voltage (VIN)	22	V
Operating voltage range (VIN)	3.9～17.0	V
Input current limit	100 - 3000	mA
Switching frequency	1.5	MHz
Charge voltage	3.50 - 4.40	V
Fast charge current	512 - 4544	mA
Pre charge current	128 - 2048	mA
Fast charge starting voltage	2.8 - 3.0	V
Full charge current	128 - 2048	mA
Thermal regulation temperature	120	℃
Charge timer	5 - 20	Hour