LT1505

PRODUCTION

Constant-Current/Voltage High Efficiency Battery Charger

Part Models
4
1ku List Price
Starting From $6.66
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Part Details

  • Simple Charging of Li-Ion, NiMH and NiCd Batteries
  • Very High Efficiency: Up to 97%
  • Precision 0.5% Charging Voltage Accuracy
  • Preset Battery Voltages: 12.3V, 12.6V, 16.4V and 16.8V
  • 5% Charging Current Accuracy
  • Charging Current Programmed by Resistor or DAC
  • 0.5V Dropout Voltage, Duty Cycle > 99.5%
  • AC Adapter Current Limit* Maximizes Charging Rate
  • Flag Indicates Li-Ion Charge Completion
  • Auto Shutdown with Adapter Removal
  • Only 10µA Battery Drain When Idle
  • Synchronizable Up to 280kHz
LT1505
Constant-Current/Voltage High Efficiency Battery Charger
Figure 1. Low Dropout 4A Lithium-Ion Battery Charger Product Package 1 Product Package 2
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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
LTC2942-1 Obsolete 1A Battery Gas Gauge with Internal Sense Resistor and Temperature/Voltage Measurement
Dual-Supply Monitors 1
LTC2960 RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
High Voltage Hot Swap Controllers 1
LTC4364 RECOMMENDED FOR NEW DESIGNS Surge Stopper with Ideal Diode
Pushbutton Controllers 1
LTC2954 RECOMMENDED FOR NEW DESIGNS Push Button On/Off Controller with µP Interrupt
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Tools & Simulations

LTspice 1


Models for the following parts are available in LTspice:

  • LT1505
  • LT1505-1
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Evaluation Kits

eval board
DC219A

LT1505CG | 4A CC-CV Lithium-Ion Battery Charger, VIN max < 24V, VIN min = Vbat +0.5V (thru-hole caps)

Product Details

DC219A: Demo Board for the LT1505 Constant-Current/Voltage High Efficiency Battery Charger.


 


DC219A
LT1505CG | 4A CC-CV Lithium-Ion Battery Charger, VIN max < 24V, VIN min = Vbat +0.5V (thru-hole caps)
DC219A - Schematic

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