MAX1758 (3)
The MAX1758 is available from Analog Devices at Xecor. Designed for stand-alone charging of up to 4 Li+ batteries, the MAX1758 offers ±0.8% battery regulation voltage accuracy, low-dropout 98% duty cycle, and programmable charge current up to 1.5A. Available in a 28-pin SSOP package, it is ideal for desktop cradle chargers, handheld instruments (PDAs, palmtops), Li+ battery packs, and notebook computers. Whether used in portable electronics or battery management systems, this series ensures high performance, safety, and efficiency for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the MAX1758 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| MAX1758EAI+ | The MAX1758EAI+ charger is suitable for various portable electronics requiring reliable power management solutions | SSOP-28 | 5,892 | |
| MAX1758EAI | French Electronic Distributor since 1988 | SSOP-28 | 6,677 | |
| MAX1758EAI+T | Advanced Li+ battery charger with switch-mode technology and internal switc | SSOP-28 | 6,333 |
Key Featrues
Stand-Alone Charger for Up to 4 Li+ Batteries: The MAX1758 is a fully integrated, stand-alone charger capable of charging one to four lithium-ion (Li+) batteries. This feature simplifies the design process by eliminating the need for external components, making it ideal for compact devices like handheld instruments and notebook computers. Its ability to handle multiple cells enhances versatility and reduces system complexity.
±0.8% Battery Regulation Voltage Accuracy: With a highly accurate voltage regulation of ±0.8%, the MAX1758 ensures precise charging, which is critical for maximizing battery life and safety. This level of accuracy minimizes overcharging risks and ensures optimal performance, especially in applications like PDAs and palmtops where battery longevity is crucial.
Low-Dropout 98% Duty Cycle: The charger operates with a 98% duty cycle, enabling efficient charging even when the input voltage is close to the battery voltage. This feature is particularly beneficial in scenarios with limited power supply headroom, such as desktop cradle chargers, ensuring consistent and reliable charging performance.
Up to 1.5A Programmable Charge Current: The MAX1758 supports a programmable charge current of up to 1.5A, allowing customization based on battery capacity and application requirements. This flexibility makes it suitable for a wide range of devices, from small handheld instruments to larger notebook computers, ensuring fast and efficient charging.
Safety Timer Prevents Overcharging: The built-in safety timer automatically terminates charging once the adjustable time limit is reached, preventing overcharging and enhancing battery safety. This feature is particularly important in applications like Li+ battery packs, where overcharging can lead to reduced battery life or safety hazards.
±0.8% Battery Regulation Voltage Accuracy: With a highly accurate voltage regulation of ±0.8%, the MAX1758 ensures precise charging, which is critical for maximizing battery life and safety. This level of accuracy minimizes overcharging risks and ensures optimal performance, especially in applications like PDAs and palmtops where battery longevity is crucial.
Low-Dropout 98% Duty Cycle: The charger operates with a 98% duty cycle, enabling efficient charging even when the input voltage is close to the battery voltage. This feature is particularly beneficial in scenarios with limited power supply headroom, such as desktop cradle chargers, ensuring consistent and reliable charging performance.
Up to 1.5A Programmable Charge Current: The MAX1758 supports a programmable charge current of up to 1.5A, allowing customization based on battery capacity and application requirements. This flexibility makes it suitable for a wide range of devices, from small handheld instruments to larger notebook computers, ensuring fast and efficient charging.
Safety Timer Prevents Overcharging: The built-in safety timer automatically terminates charging once the adjustable time limit is reached, preventing overcharging and enhancing battery safety. This feature is particularly important in applications like Li+ battery packs, where overcharging can lead to reduced battery life or safety hazards.
Applications
Desktop Cradle Chargers: The MAX1758 is ideal for use in desktop cradle chargers, providing a reliable and efficient charging solution for Li+ batteries. Its high-side switch and programmable charge current up to 1.5A ensure fast and safe charging, while the built-in safety timer prevents overcharging, making it perfect for consumer electronics charging stations.
Handheld Instruments (PDAs, Palmtops): The MAX1758 is well-suited for handheld devices like PDAs and palmtops, offering a compact and efficient charging solution. Its low-dropout 98% duty cycle and continuous voltage and temperature monitoring ensure safe and reliable charging, even in portable applications with limited power budgets.
Li+ Battery Packs: The MAX1758 is an excellent choice for charging Li+ battery packs, thanks to its ±0.8% battery regulation voltage accuracy and ability to safely precharge near-dead cells. Its input voltage range of up to 28V and programmable charge current make it versatile for various battery pack configurations in industrial and consumer applications.
Notebook Computers: The MAX1758 is ideal for notebook computer charging systems, providing a high-efficiency, switch-mode charging solution. Its 300kHz PWM oscillator reduces noise, while the input current limiting and safety timer ensure safe and reliable charging, making it suitable for high-performance computing devices.
Handheld Instruments (PDAs, Palmtops): The MAX1758 is well-suited for handheld devices like PDAs and palmtops, offering a compact and efficient charging solution. Its low-dropout 98% duty cycle and continuous voltage and temperature monitoring ensure safe and reliable charging, even in portable applications with limited power budgets.
Li+ Battery Packs: The MAX1758 is an excellent choice for charging Li+ battery packs, thanks to its ±0.8% battery regulation voltage accuracy and ability to safely precharge near-dead cells. Its input voltage range of up to 28V and programmable charge current make it versatile for various battery pack configurations in industrial and consumer applications.
Notebook Computers: The MAX1758 is ideal for notebook computer charging systems, providing a high-efficiency, switch-mode charging solution. Its 300kHz PWM oscillator reduces noise, while the input current limiting and safety timer ensure safe and reliable charging, making it suitable for high-performance computing devices.
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