Catalog
Description
The LTC3305 balances up to 4 lead-acid batteries connected in series. It is intended to be used in conjunction with a separate pre-existing battery charger as part of a high performance battery system. All voltage monitoring, gate drive, and fault detection circuitry is integrated.
The LTC3305 employs an auxiliary battery or an alternative storage cell to transfer charge to or from each individual battery in the stack. A mode pin provides two operating modes, timer mode and continuous mode. In timer mode, once the balancing operation is completed, the LTC3305 goes into a low power state for a programmed time and then periodically rebalances the batteries. In continuous mode, the balancing operation continues even after the batteries are balanced to their programmed termination voltage.
The LTC3305 is available in a thermally enhanced 38-lead TSSOP package.
Pin Configuration
Figure: Pin Configuration
Block Diagram
Figure: Block Diagram
Features
- Single IC Balances Up to Four 12V Lead-Acid Batteries in Series
- All NFET Design
- Stackable to Balance Larger Series Battery Packs
- Standalone Balancing Operation: Requires No External μP or Additional Control Circuitry
- Balancing Current Limited by External PTC Thermistor
- Continuous Mode and Timer Mode
- Programmable UV and OV Fault Thresholds
- Programmable Termination Time and Termination Voltage
- Thermally Enhanced 38-Lead TSSOP Package
Applications
- Telecom Backup Systems
- Hlectric Vehicles
- Energy Storage Systems (ESS)
- Medical Equipment
Datasheet
You can download the datasheet from the link given below:
Product Attributes
| Manufacturer: | Analog Devices Inc. |
| Product Category: | Battery Management |
| Product: | Charge Management |
| Battery Type: | Lead Acid |
| Output Voltage: | 2.5 V |
| Output Current: | 3 mA |
| Operating Supply Voltage: | 64 V |
| Package / Case: | TSSOP-38 |
| Mounting Style: | SMD/SMT |
| Series: | LTC3305 |
| Packaging: | Tube |
| Height: | 1.2 mm |
| Brand: | Analog Devices |
| Development Kit: | DC2043B |
| Product Type: | Battery Management |
| Factory Pack Quantity: | 50 |
| Subcategory: | PMIC - Power Management ICs |
| Unit Weight: | 0.015027 oz |
Manufacturer
Analog Devices, Inc. (ADI), also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing and power management technology, headquartered in Wilmington, Massachusetts. In 2012, Analog Devices led the worldwide data converter market with a 48.5% share, according to analyst firm Databeans.
Using Warning
Note: Please check their parameters and pin configuration before replacing them in your circuit.
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