Atmel U2403B-M

-10°C ~ 150°C (TJ)

Overview

The U2403B is a monolithic integrated bipolar circuit which can be used in applications where time-controlled, constant current charge is required. The selection of the charge current versus timing is carried out by using the external circuit at pins 2, 3 and 4. For high current requirements, an external transistor is recommended in series with the battery. To protect the IC against high power loss (typically > 140C), the oscillator will be shut down when the reference voltage is switched off (0 V). The latter also takes place when there is a saturation caused by collector voltage at pin 1. When the overtemperature has disappeared and the collector voltage at pin 1 has exceeded the supply voltage (V1 > VS), charge time operation continues (see flow chart in Figure 4 on page 6).

• Low-cost Battery-charge Timers 

Features

Applications

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