LT1512IS8#PBF - Brand New Analog Devices / Linear Technology Battery Management ICs
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Description
The LT1512IS8#PBF is a 500kHz current mode switching regulator designed for battery management. It is specifically configured to create a constant-current/constant-voltage battery charger. The LT1512IS8#PBF features a current sense feedback circuit that allows accurate control of the output current in a flyback or SEPIC topology charger. This topology allows the current sense circuit to be ground referred and separated from the battery, simplifying battery switching and system grounding issues. It also enables charging even when the input voltage is lower than the battery voltage. With a maximum switch current of 1.5A, the LT1512IS8#PBF can support battery charging currents up to 1A for a single lithium-ion cell. It offers 1% voltage accuracy in constant-voltage mode, making it ideal for lithium battery applications. The charging current can be easily programmed for different battery types.
Specifications and features
Some of the key features of the LT1512IS8#PBF include:
- Charger input voltage may be higher, equal to, or lower than the battery voltage
- Supports charging any number of cells up to 30V
- 1% voltage accuracy for rechargeable lithium batteries
- 100mV current sense voltage for high efficiency
- Battery can be directly grounded
- 500kHz switching frequency minimizes inductor size
- Charging current can be easily programmed or shut down
Application Scenarios
The LT1512IS8#PBF is suitable for various applications including:
- Battery charging of NiCd, NiMH, lead-acid, or lithium rechargeable cells
- Precision current-limited power supply
- Constant-voltage/constant-current supply
- Transducer excitation
Comparison
AdvantagesThe LT1512IS8#PBF offers the following advantages:
- Accurate control of output current with a current sense feedback circuit
- Supports charging even when the input voltage is lower than the battery voltage
- 1% voltage accuracy in constant-voltage mode for lithium battery applications
- Easily programmable charging current for different battery types
- High switching frequency minimizes inductor size
DisadvantagesThere are no known disadvantages of the LT1512IS8#PBF.
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Datasheet
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Popular parts of the same kind
- Datasheet: Download LT1512IS8#PBF
- Chipdatas Part: CD94-LT1512IS8#PBF
- Warehouse: China, Hong Kong
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- Last Updated: 2024/06/03 10:49 +0800
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