Maxim MAX1640EEE+

-40°C ~ 85°C（TA）

Overview

The MAX1640/MAX1641 CMOS, adjustable-output, switch-mode current sources operate from a +5.5V to +26V input, and are ideal for microprocessor-controlled battery chargers. Charging current, maximum output voltage, and pulse-trickle charge are programmed with external resistors. Programming the off-time modifies the switching frequency, suppressing undesirable harmonics in noise-sensitive circuits. The MAX1640's high-side current sensing allows the load to connect directly to ground, eliminating ground-potential errors. The MAX1641 incorporates a low-side current sense. The MAX1640/MAX1641 step-down pulse-width-modulation (PWM) controllers use an external P-channel MOSFET switch and an optional, external N-channel MOSFET synchronous rectifier for increased efficiency. An internal low-dropout linear regulator provides power for the internal reference and circuitry as well as the gate drive for the N-channel synchronous rectifier. The MAX1640/MAX1641 are available in space-saving, 16-pin narrow QSOP packages.

Features

Tube Package
Switching frequency of 500kHz
Addtional features of ALSO OPERATES IN ADJUSTABLE MODE FROM 2V TO 24V; ALSO HAS PWM CONTROL TECHNIQUE
16-SSOP (0.154, 3.90mm Width) package

Surface Mount Mounting Type

Applications

There are a lot of Maxim Integrated
MAX1640EEE+ Battery Chargers ICs applications.

• Personnel carriers
• Maintenance shops
• Rental fleets
• Truck dealers
• Floor scrubber
• Material handling
• Man lift
• Boat
• Cellphones
• Laptops