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Home » NEWEST Products » New by Manufacturer » Maxim Integrated » Maxim Integrated MAX1551 / MAX1555 Li+ Battery Chargers
NEWEST Products
Maxim IC MAX1551 / MAX1555 Single-Cell Li+ Battery Chargers

Maxim Integrated IC MAX1551 / MAX1555
Single-Cell Li+ Battery Chargers

Maxim Integrated IC MAX1551 / MAX1555 dual-input single-cell Li+ battery chargers charge a single-cell Li+ battery from USB and AC adapter sources. These Maxim Integrated battery chargers operate with no external FETs or diodes and accept operating input voltages up to 7V. On-chip thermal limiting simplifies PC board layout and allows optimum charging rate without the thermal limits imposed by worst-case battery and input voltage. When the MAX1551 and MAX1555 thermal limits are reached, the chargers do not shut down but instead progressively reduce charging current. The MAX1551 includes a POK (power OK) output to indicate when input power is present. If either charging source is active, POK goes low. The MAX1555 instead features a CHG output to indicate charging status.

Features
  • Charge from USB or AC Adapter
  • Automatic Switchover when AC Adapter is Plugged In
  • On-Chip Thermal Limiting Simplifies Board Design
  • Charge Status Indicator
  • 5-Pin Thin SOT23 Package
Applications
  • Cell Phones
  • Digital Cameras
  • PDAs
  • Wireless Appliances

Typical Operating Circuit

Typical Operating Circuit
  • Maxim Integrated
  • Power Management
  • Semiconductors|Integrated Circuits|IC-Power Management