Cost-Saving, Multichemistry, Battery Charger System The MAX846AEEE+ is a battery charger controller IC manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)
- **Part Number:** MAX846AEEE+
- **Package:** 16-QSOP (QSOP-16)
- **Operating Voltage Range:** 4V to 28V
- **Charging Current Range:** Programmable up to 4A
- **Charge Termination Methods:** Voltage-based (with optional temperature monitoring)
- **Battery Chemistry Support:** Lithium-Ion (Li-Ion), Nickel-Cadmium (NiCd), Nickel-Metal Hydride (NiMH)
- **Charge Control Method:** Linear or PWM (Pulse-Width Modulation)
- **Temperature Monitoring:** Built-in thermistor input for battery temperature sensing
- **Accuracy:** ±0.5% voltage regulation for precise charging
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
The MAX846AEEE+ is a versatile battery charger controller designed for multiple battery chemistries, including Li-Ion, NiCd, and NiMH. It provides flexible charging solutions with programmable current and voltage settings, making it suitable for various portable and industrial applications. The IC supports both linear and switching regulator topologies for efficient power management.
### **Features:**
- **Multi-Chemistry Support:** Configurable for Li-Ion, NiCd, or NiMH batteries.
- **Adjustable Charge Current:** External resistor sets charging current up to 4A.
- **Precision Voltage Regulation:** ±0.5% accuracy ensures safe charging.
- **Thermal Protection:** Includes thermistor input for temperature monitoring.
- **Wide Input Voltage Range:** 4V to 28V input compatibility.
- **Charge Status Outputs:** Provides signals for charge status (charging, complete, fault).
- **Low-Power Standby Mode:** Minimizes power consumption when not charging.
- **Programmable Timer:** Prevents overcharging with a safety timer.
This IC is commonly used in battery-powered devices, power tools, medical equipment, and other applications requiring reliable battery charging.
(Note: Always refer to the official datasheet for detailed technical specifications and application guidelines.)
