MAX1501

PRODUCTION

Highly Integrated, Linear Battery Charger with Thermal Regulation for Portable Applications

First Temperature-Regulated, CC-CV Battery Charger with Overvoltage Protection for Portable Applications

Data Sheet (Rev. 2) Product Selection Table
Part Models
5
1ku List Price
Starting From $2.30
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Part Details

  • Stand-Alone 1-Cell Li+ Charging, Microprocessor- Controlled 3-Cell NiMH/NiCd Charging
  • No FET, Reverse-Blocking Diode, or Current- Sense Resistor Required
  • 1.4A (max) Programmable Fast-Charge Current
  • +95°C, +115°C, and +135°C Proprietary Programmable Die Temperature Regulation Control
  • 4.5V to 13V Input Voltage Range with Input Overvoltage (OVLO) Protection Above 6.5V
  • Programmable Top-Off Current Threshold: 10%, 20%, or 30% of the Fast-Charge Current
  • Charge-Current Monitor for Fuel Gauging
  • Programmable Safety Timer (3, 4.5, or 6 hours)
  • Input Power Detection Output (active-low ACOK) and Charge Enable Input (active-low CHGEN)
  • Automatic Recharge
  • Digital Soft-Start Limits Inrush Current
  • Charge Status Outputs for LEDs or µP Interface
MAX1501
Highly Integrated, Linear Battery Charger with Thermal Regulation for Portable Applications
MAX1501: Typical Operating Circuit
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Documentation

Data Sheet 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Linear Battery Chargers 1
MAX1898
PRODUCTION Linear Charger for Single-Cell Li+ Battery
Pulse Battery Chargers 2
MAX1879
PRODUCTION Simple, Efficient, 1-Cell Li+ Pulse Charger
MAX1736
PRODUCTION SOT23, Single-Cell Li+ Battery Charger for Current-Limited Supply
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Evaluation Kits

MAX1501EVKIT

Evaluation Kit for the MAX1501

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Features and Benefits

  • Simple Stand-Alone Li+ or NiMH/NiCd Battery Charger
  • Safely Precharges Deeply Discharged Li+ Cells
  • 4.5V to 13V Input Voltage Range
  • 6.5V Overvoltage Protection Threshold
  • Programmable Charging Modes
  • Programmable Battery Voltage Levels
  • Programmable Top-Off Charging Thresholds
  • Programmable Safety Timer
  • Programmable Die Temperature Regulation Set-Points
  • Fully Assembled and Tested

Product Details

The MAX1501 evaluation kit (EV kit) is a complete, fully assembled and tested circuit board that demonstrates the highly integrated MAX1501 linear battery charger for a single-cell lithium-ion (Li+) or a 3-cell NiMH/NiCd battery. The EV kit safely charges a single Li+ battery to 4.1V or 4.2V or a 3-cell NiMH/NiCd to 4.5V or 4.95V (4.95V must collaborate with the microprocessor control). The EV kit accepts a power-supply input of 4.5V to 13V, but disables charging when the input voltage exceeds 6.5V. Jumpers on the EV kit allow adjustments to the total charging time, battery voltage levels, top-off current, die temperature regulation levels, and charging modes. LEDs on the board indicate the status of the charging cycle.

Applications

  • Bluetooth® Equipment
  • Cell Phones/Cordless Phones
  • Charging Cradles and Docks
  • Digital Cameras and MP3 Players
  • PDAs
  • USB Appliances
MAX1501EVKIT
Evaluation Kit for the MAX1501

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