LTC1734LES6-4.2#TRMPBF Linear Battery Chargers by Analog Devices

Status: Production
Series: LTC1734L
RoHS: Compliant
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The LTC1734L is a low cost, single cell, constant-current/constant-voltage Li-Ion battery charger controller. When combined with a few external components, the SOT-23 package forms a very small, low cost charger for single cell lithium-ion batteries. The LTC1734L is a lower charge current version of the LTC1734.The LTC1734L provides a fixed float voltage of 4.2V with 1% accuracy (for 4.1V and 4.15V float voltages, contact Analog Devices Marketing). 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.The LTC1734L can also function as a general purpose current source or as a current source for charging nickel-cadmium (NiCd) and nickel-metal-hydride (NiMH) batteries using external termination. Charge Current V float LTC1734 180mA to 700mA 4.1V or 4.2V LTC1734L 50mA to 180mA 4.2V

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Features

Low Profile (1mm) ThinSOT™ Package
Programmable Charge Current: 50mA to 180mA
No Blocking Diode Required
No Sense Resistor Required
1% Accurate Preset Voltage: 4.2V
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

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Alternative Descriptions

Linear Battery Charger Controller Li-Ion/Li-Pol/NiCd/NiMH 180mA 4.2V 6-Pin TSOT-23 T/R | Richardson RFPD


LTC1734LES6-4.2#TRMPBF Semiconductors - ICs by Linear Technology

IC BATT CHARGER LI-ION SOT23

Status: Unknown
Series: -
RoHS: Unknown
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Specifications

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
Product Range -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 1734
Battery Management Function Charge Controller
Input Voltage Max 8V
Operating Temperature Range -40°C to +85°C
Supply Voltage Max 8V
Termination Type Surface Mount Device

Frequently Asked Questions

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Additional datasheets, footprints and schematics for LTC1734LES6-4.2#TRMPBF are listed on our Part Details page. You can also find images and similar parts to LTC1734LES6-4.2#TRMPBF on this page.

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What category does LTC1734LES6-4.2#TRMPBF fall under?

The LTC1734LES6-4.2#TRMPBF is listed under Linear Battery Chargers.

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Is the LTC1734LES6-4.2#TRMPBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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