Professional IC Distribution & Technical Solutions

The MAX1786EUI is a high-voltage, lithium-ion battery pack protector from Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

Specifications:

• Manufacturer: Maxim Integrated (Analog Devices)
• Part Number: MAX1786EUI
• Package: 28-TSSOP (Thin Shrink Small Outline Package)
• Operating Voltage Range: 4V to 25V
• Number of Series Cells Supported: 3 to 6 cells
• Overvoltage Protection Threshold: Adjustable (typical range: 3.5V to 4.5V per cell)
• Undervoltage Protection Threshold: Adjustable (typical range: 2.0V to 3.5V per cell)
• Overcurrent Protection: Adjustable
• Short-Circuit Protection: Yes
• Charge/Discharge Control: External MOSFET drivers
• Communication Interface: I²C/SMBus compatible
• Operating Temperature Range: -40°C to +85°C

Descriptions:

The MAX1786EUI is a highly integrated battery protection IC designed for 3- to 6-cell lithium-ion (Li-ion) or lithium-polymer (Li-Po) battery packs. It provides comprehensive protection against overvoltage, undervoltage, overcurrent, and short-circuit conditions. The device includes internal balancing switches to ensure uniform cell charging and an I²C/SMBus interface for system communication and configuration.

Features:

• High-Voltage Operation: Supports up to 25V input.
• Cell Balancing: Integrated passive balancing with adjustable thresholds.
• Programmable Protection Thresholds: Configurable via I²C/SMBus.
• Low-Power Mode: Reduces current consumption when idle.
• Fault Detection: Monitors cell voltages, current, and temperature.
• External MOSFET Control: Drives charge and discharge FETs.
• Diagnostic Reporting: Provides fault status via I²C/SMBus.
• Compact Package: 28-pin TSSOP for space-constrained designs.

The MAX1786EUI is commonly used in portable electronics, power tools, medical devices, and energy storage systems requiring robust battery protection.

*(Note: For detailed application circuits and programming, refer to the official datasheet.)*