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LINEAR TECHNOLOGY  LTC1734LES6-4.2#TRMPBF  IC, BATT CHARGER, LI-ION, SOT23

LINEAR TECHNOLOGY LTC1734LES6-4.2#TRMPBF
Technical Data Sheet (188.51KB) EN See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC1734LES6-4.2#TRMPBF is a single cell constant-current/constant-voltage Li-ion Battery Charger Controller provides a fixed float voltage of 4.2V with 1% accuracy. Constant current is programmed using a single external resistor between the PROG pin and ground. Manual shutdown is accomplished by floating the program resistor while removing input power automatically puts the LTC1734L into a sleep mode. Both the shutdown and sleep modes drain near zero current from the battery. Charge current can be monitored via the voltage on the PROG pin allowing a microcontroller or ADC to read the current and determine when to terminate the charge cycle. The output driver is both current limited and thermally protected to prevent the LTC1734L from operating outside of safe limits. No external blocking diode is required.
  • No blocking diode required
  • No sense resistor required
  • Charge current monitor output for charge termination
  • Automatic sleep mode with input supply removal
  • Manual shutdown
  • Negligible battery drain current in shutdown
  • Undervoltage lockout
  • Self protection for overcurrent/overtemperature

Product Information

Battery Type:
Li-Ion
Input Voltage:
4.55V
Battery Charge Voltage:
4.2V
Charge Current Max:
180mA
Battery IC Case Style:
SOT-23
No. of Pins:
6Pins
No. of Series Cells:
1
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Power Management;
  • Computers & Computer Peripherals;
  • Portable Devices;
  • Consumer Electronics;
  • Communications & Networking;
  • Industrial

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000033

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