Overview
The LTC4100EG#PBF is a Smart Battery Charger Controller produced by Analog Devices Inc. This single-chip solution dramatically simplifies the construction of an SBS (Smart Battery System) compliant charging system. It is designed to manage the charging process for lithium-ion batteries, ensuring high accuracy and reliability.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units | |
|---|---|---|---|---|---|---|
| DCIN Operating Range | 6 | 28 | V | |||
| IDCIN DCIN Operating Current | Charging, Sum of Currents on DCIN, CLP and CLN | 3 | 5 | mA | ||
| VTOL Charge Voltage Accuracy | -0.8 | -1 | 0.8 | % | ||
| ITOL Charge Current Accuracy | VCSP - VBAT Target = 102.3mV, IDAC = 0xFFFF | -4 | -5 | 4 | 5 | % |
| VDD Power Supply Input | 3.3 | 5 | VDC | |||
| Temperature Range | -40 | 85 | °C | |||
| Package Type | 24-Lead Plastic SSOP |
Key Features
- SBS Compliance: The LTC4100 is designed to be compliant with the Smart Battery System (SBS) specifications, ensuring compatibility with a wide range of smart battery applications.
- High Accuracy: Offers high accuracy in both charge voltage and current, with charge voltage accuracy of ±0.8% and charge current accuracy of ±4% to ±5%.
- Programmable Charging: Features a programmable resistor divider for battery voltage feedback and an 11-bit VDAC for precise control over charging parameters.
- Thermal Management: Includes thermal monitoring and protection to ensure safe operation within a temperature range of -40°C to 85°C.
- SMBus Interface: Supports SMBus communication for monitoring and controlling the charging process.
- Multiple Protection Features: Includes overcharge, over-discharge, and short-circuit protection to safeguard the battery and the system.
Applications
- Portable Electronics: Ideal for use in portable electronics such as laptops, tablets, and smartphones that require smart battery management.
- Industrial Systems: Suitable for industrial applications where reliable and accurate battery charging is critical.
- Automotive Systems: Can be used in automotive systems for managing battery charging in electric and hybrid vehicles.
- Medical Devices: Applicable in medical devices that require precise and reliable battery charging.
Q & A
- What is the operating voltage range of the LTC4100EG#PBF?
The operating voltage range of the DCIN input is from 6V to 28V.
- What is the typical operating current of the LTC4100EG#PBF during charging?
The typical operating current during charging is around 5 mA, which is the sum of currents on DCIN, CLP, and CLN.
- What is the charge voltage accuracy of the LTC4100EG#PBF?
The charge voltage accuracy is ±0.8% to ±1%).
- What is the charge current accuracy of the LTC4100EG#PBF?
The charge current accuracy is ±4% to ±5%).
- What is the temperature range of the LTC4100EG#PBF?
The temperature range is from -40°C to 85°C).
- What type of package does the LTC4100EG#PBF come in?
The LTC4100EG#PBF comes in a 24-Lead Plastic SSOP package).
- Does the LTC4100EG#PBF support SMBus communication?
Yes, it supports SMBus communication for monitoring and controlling the charging process).
- What is the current driving capability of the CHGEN pin when in high state?
The current driving capability of the CHGEN pin when in high state (VDD = 3.3V) may not be sufficient to drive certain level translator ICs, and additional analysis is recommended).
- What are the key protection features of the LTC4100EG#PBF?
The LTC4100EG#PBF includes overcharge, over-discharge, and short-circuit protection features to safeguard the battery and the system).
- Is the LTC4100EG#PBF lead-free and RoHS compliant?
Yes, the LTC4100EG#PBF is lead-free and RoHS compliant).
