LTC4067

PRODUCTION

USB Power Manager with OVP and Li-Ion/Polymer Charger

Part Models
2
1ku List Price
Starting From $2.08
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Part Details

  • Programmable Input Current Limit:
    • Single Resistor at CLPROG Pin to Set and Monitor Input Current
  • Battery Charger/Ideal Diode/Controller:
    • 13V Overvoltage Protection
    • Full Featured Battery Charger with 4.2V Float
    • Up to 1.25A Programmable Charge Current
    • Thermal Regulation Maximizes Charge Current Without Risk of Overheating
    • Internal 2 Hour Termination Timer from Onset of Voltage Mode Charging
    • Automatic Load Switchover to Battery Power with Internal Ideal Diode and Drive Output for Optional External MOSFET
    • NTC Thermistor Input
    • Bad Battery Time-Out Detection
    • 4mm × 3mm 12-Lead DFN Package
LTC4067
USB Power Manager with OVP and Li-Ion/Polymer Charger
OVP Response to Ramp Input at OVI Product Package 1
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Battery Fuel Gauge and Coulomb Counter 1
LTC2942 NOT RECOMMENDED FOR NEW DESIGNS Battery Gas Gauge with Temperature, Voltage Measurement
Low Voltage Hot Swap Controllers 1
LTC4361-1
LTC4361-2
Overvoltage/Overcurrent Protection Controller
USB Isolators 1
LTM2884 PRODUCTION Isolated USB Transceiver with Isolated Power
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Evaluation Kits

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DC943A

LTC4067EDE Demo Board | USB Power Manager with 13V OVP and 1.25A Li-Ion Charger

Product Details

Demonstration circuit 943 is a complete power controller for a USB power device. It features the LTC6047 and provides a full-featured 1.25A linear lithium-ion CC/CV battery charger with timer termination and 4.2V charge voltage, a USB power manager, and a PowerPath manager for the battery. The USB input voltage range is 4.35V to 5.5V and the wall adapter input is 4.35V to 6V. It also features a programmable 1.5A input current limit that can be set at 500mA or 100mA for USB applications.


The wall adapter input has overvoltage protection up to 13V. An external MOSFET disconnects the wall adapter when the voltage exceeds 6V.



DC943A
LTC4067EDE Demo Board | USB Power Manager with 13V OVP and 1.25A Li-Ion Charger
DC943A - Schematic

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