MAX1501ETE+ | Multi-Chemistry Linear Battery Charger | 1.4A Programmable Battery IC

Product Overview

     The MAX1501ETE+ is a highly integrated linear battery charger IC designed to support multi-chemistry cells, including single-cell lithium-ion (Li+) and 1 to 3 cell NiMH/NiCd batteries. Featuring programmable constant-current/constant-voltage (CC/CV) charging, automatic charge termination, and built-in thermal regulation, the device simplifies charger designs for portable applications. Proprietary thermal-regulation circuitry limits chip temperature during fast charge or high ambient conditions, enabling maximum charge current without damage. The device continues to provide a regulated output voltage even without a battery, allowing seamless system operation and battery replacement.

Key Features

• Supports 1 cell Li+, and 1–3 cell NiMH/NiCd chemistries
• Programmable constant-current/constant-voltage charging
• Maximum fast-charge current up to ~1.4 A
• Built-in thermal regulation for reliable high-current operation
• Automatic charge termination and safety timer
• Input undervoltage/overvoltage protection and ACOK detection
• Active-low control inputs for charger enable
• Regulated output with or without battery
• Compact 16-pin TQFN (5 × 5 mm) package
• Wide input supply range (typically 4.5 V to ~13 V)
• Operating temperature range: –40 °C to +85 °C

Applications

• Mobile phones and cordless handsets
• Portable consumer electronics (PDA, cameras, MP3 players)
• USB devices and accessories
• Bluetooth headsets and wearables
• Charging docks and cradles
• Battery-powered industrial/measurement tools

Electrical Characteristics