
Allicdata Part #: | LP3947ISD-51TR-ND |
Manufacturer Part#: |
LP3947ISD-51 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC BATT CHARGE MGR LI-ION 14WSON |
More Detail: | Charger IC Lithium-Ion 14-WSON (4x4) |
DataSheet: | ![]() |
Quantity: | 1000 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Obsolete |
Battery Chemistry: | Lithium-Ion |
Number of Cells: | 1 |
Current - Charging: | Constant - Programmable |
Programmable Features: | -- |
Fault Protection: | Over Voltage |
Charge Current - Max: | 750mA |
Battery Pack Voltage: | 4.2V |
Voltage - Supply (Max): | 6V |
Interface: | I²C, USB |
Operating Temperature: | -40°C ~ 85°C (TA) |
Package / Case: | 14-WFDFN Exposed Pad |
Supplier Device Package: | 14-WSON (4x4) |
Base Part Number: | LP3947 |
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The LP3947ISD-51 is an integrated, pulse-width modulator (PWM) based battery charger typically used to charge lithium-ion or lithium-based battery chemistries. It is integrated into PMIC – Battery Chargers, a class of integrated circuits specifically designed to provide overcharge, overdischarge protection and boost to the battery by converting a DC signal to the necessary charging current.
The LP3947ISD-51 connects the battery to the charger and regulates the current according to the power levels. It is designed to automatically adjust the charging voltage, current and timer to suit the battery size and chemistry. It integrates both linear and switching mode power supplies for better efficiency and better control over the charging current supplied to the battery.
The LP3947ISD-51 has a variety of applications, and is often seen in robotics, automation, and the HVAC sector. It is ideal for use in applications that require high accuracy in charging and require a reliable, low power device. Its current limiting and over-temperature protection ensure safe operation and low power consumption. This makes it an ideal fit for situations where high precision and reliability is required.
The LP3947ISD-51 uses pulse-width modulation technology, which is a method of reducing the average current by increasing the frequency of charging pulses. This method allows for a more efficient transfer of the energy from the charger to the battery. The pulse-width modulation also enables the LP3947ISD-51 to adjust the voltage, current, and timer precisely to meet the battery chemistry’s needs.
The LP3947ISD-51 also employs an internal monitoring circuit and signal converter to sense the battery voltage, current, and temperature. It is initialized as soon as a signal is detected and makes the necessary adjustments to deliver the exact amount of current required to keep the battery healthy. The converter also allows the LP3947ISD-51 to detect changes in battery temperature and adjust the charging rate accordingly.
In summation, The LP3947ISD-51 is an integrated battery charger with pulse-width modulation technology and several safety features. It is versatile enough to be used in any charging application, and is designed to precisely control the current supplied to a variety of battery chemistries. In terms of PMIC – Battery Chargers, the LP3947ISD-51 is a reliable device that can provide the user with precision and accuracy in a low-power form factor.
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