LTC4162IUFD-SST#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Charger

Characteristics: - High Efficiency - Wide Input Voltage Range - Programmable Charging Parameters - Thermal Regulation and Protection - Fault Detection and Reporting

Package: 28-Lead 4mm x 5mm QFN

Essence: The LTC4162IUFD-SST#PBF is a high-efficiency battery charger IC designed for various applications.

Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 4.5V to 35V
• Charge Current Range: Up to 3A
• Maximum Float Voltage: 14.4V
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC4162IUFD-SST#PBF has a 28-lead QFN package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. VREF: Reference Voltage Output
4. ISET: Charge Current Programming
5. TS: Thermistor Input
6. PROG: Programming Pin
7. STAT: Status Indicator Output
8. INTVCC: Internal Regulator Output
9. BAT: Battery Connection
10. ILIM: Input Current Limit Programming
11. SDA: I2C Data Line
12. SCL: I2C Clock Line
13. PGOOD: Power Good Indicator Output
14. VOUT: Output Voltage
15. VSS: Negative Supply Voltage
16. VCC: Positive Supply Voltage
17. VFB: Feedback Voltage Input
18. VSENSE: Sense Voltage Input
19. VBAT: Battery Voltage Input
20. VCC1: Positive Supply Voltage
21. VSS1: Negative Supply Voltage
22. VOUT1: Output Voltage
23. VFB1: Feedback Voltage Input
24. VSENSE1: Sense Voltage Input
25. VBAT1: Battery Voltage Input
26. ISET1: Charge Current Programming
27. TS1: Thermistor Input
28. GND1: Ground

Functional Features

• Wide input voltage range allows for versatile applications.
• Programmable charging parameters provide flexibility in charging different battery types.
• Thermal regulation and protection ensure safe operation under varying temperature conditions.
• Fault detection and reporting enable quick identification of any issues.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption. - Wide input voltage range accommodates various power sources. - Programmable charging parameters offer customization options. - Comprehensive thermal regulation and protection enhance safety. - Fault detection and reporting facilitate troubleshooting.

Disadvantages: - Limited maximum charge current compared to some other models. - Relatively high cost compared to basic battery charger ICs.

Working Principles

The LTC4162IUFD-SST#PBF operates by converting the input voltage into a regulated output voltage suitable for charging batteries. It employs a switching regulator topology to achieve high efficiency. The charging parameters can be programmed through the PROG pin, allowing customization for different battery chemistries and capacities. The IC also incorporates thermal regulation and protection mechanisms to prevent overheating. Fault detection circuitry continuously monitors the charging process and reports any abnormalities through the STAT pin.

Detailed Application Field Plans

The LTC4162IUFD-SST#PBF is widely used in various applications, including: - Portable electronic devices - Industrial equipment - Automotive systems - Renewable energy systems - Medical devices

Detailed and Complete Alternative Models

1. LTC4162IUFD-4.2
2. LTC4162IUFD-4.35
3. LTC4162IUFD-5

These alternative models offer similar functionality to the LTC4162IUFD-SST#PBF but with different charging parameters or voltage ratings.

In conclusion, the LTC4162IUFD-SST#PBF is a versatile battery charger IC with high efficiency and programmable charging parameters. It offers various features such as thermal regulation, fault detection, and reporting. While it has some limitations in terms of maximum charge current and cost, it finds applications in diverse fields. Alternative models with different specifications are also available for specific requirements.