LT1769

PRODUCTION

Constant-Current/Constant-Voltage 2A Battery Charger with Input Current Limiting

Part Models
8
1ku List Price
Starting From $7.15
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Part Details

  • Simple Solution to Charge NiCd, NiMH and Lithium Rechargeable Batteries—Charging Current Programmed by Resistors or DAC
  • Adapter Current Limit Allows Maximum Possible Charging Current During System Use*
  • Precision 0.5% Accuracy for Voltage Mode Charging
  • High Efficiency Current Mode PWM with 3A Internal Switch
  • 5% Charge Current Accuracy
  • Adjustable Undervoltage Lockout
  • Automatic Shutdown When AC Adapter is Removed
  • Low Reverse Battery Drain Current: 3µA
  • Current Sensing Can Be at Either Terminal of the Battery
  • Charging Current Soft Start
  • Shutdown Control
  • Available in 20-Lead Exposed Pad TSSOP and 28-Lead Narrow SSOP Packages
LT1769
Constant-Current/Constant-Voltage 2A Battery Charger with Input Current Limiting
Figure 1. 2A 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
Pushbutton Controllers 1
LTC2955 RECOMMENDED FOR NEW DESIGNS Pushbutton On/Off Controller with Automatic Turn-On
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LTC4365 RECOMMENDED FOR NEW DESIGNS Overvoltage, Undervoltage and Reverse Supply Protection Controller
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Evaluation Kits

eval board
DC299A-D

LT1769CGN, LTC1729CMS8 | 2A Li-Ion Battery Charger with Termination Controller, 12V to 25V Input, 8.4 VOUT @ 2A Max.

Product Details

DC299A-D Demo Board for:
LT1769 Constant-Current/Constant-Voltage 2A Battery Charger with Input Current Limiting
LTC1729 Li-Ion Battery Charger Termination Controllers


 


eval board
DC243A

LT1769CGN | 2A, Constant Current, Constant Voltage Battery Charger

Product Details

DC243A: Demo Board for the LT1769 Constant-Current/Constant-Voltage 2A Battery Charger with Input Current Limiting.


 


DC299A-D
LT1769CGN, LTC1729CMS8 | 2A Li-Ion Battery Charger with Termination Controller, 12V to 25V Input, 8.4 VOUT @ 2A Max.
DC299A-D - Schematic
DC243A
LT1769CGN | 2A, Constant Current, Constant Voltage Battery Charger
DC243A - Schematic

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