TPS2350PW

Overview

Category: Integrated Circuits (ICs)

Use: Power Management IC

Characteristics: - High accuracy voltage and current monitoring - Overvoltage and undervoltage protection - Overcurrent protection - Thermal shutdown protection - Fault detection and reporting

Package: PowerPAD HTSSOP-20

Essence: The TPS2350PW is a power management integrated circuit designed to provide accurate voltage and current monitoring, as well as various protection features for power systems.

Packaging/Quantity: The TPS2350PW is available in a PowerPAD HTSSOP-20 package. It is typically sold in reels of 250 units.

Specifications

• Input Voltage Range: 2.7V to 18V
• Operating Temperature Range: -40°C to +125°C
• Current Sense Gain: 10mV/A
• Overvoltage Threshold: Programmable from 1.8V to 5.6V
• Undervoltage Threshold: Programmable from 1.8V to 5.6V
• Overcurrent Threshold: Programmable from 0.5A to 3.5A

Pin Configuration

The TPS2350PW has a total of 20 pins. The pin configuration is as follows:

1. VCC
2. GND
3. EN
4. FLT
5. OV
6. UV
7. OC
8. ISET
9. CSN
10. CSP
11. VREF
12. VSENSE
13. VOUT
14. VDD
15. VSS
16. PGND
17. PGND
18. PGND
19. PGND
20. PGND

Functional Features

1. Voltage and Current Monitoring: The TPS2350PW accurately monitors the input voltage and current, providing precise measurements for power system analysis.

2. Overvoltage and Undervoltage Protection: The IC allows programmable thresholds for overvoltage and undervoltage conditions, triggering protective actions when these limits are exceeded.

3. Overcurrent Protection: The TPS2350PW offers programmable overcurrent protection, safeguarding the power system from excessive current flow.

4. Thermal Shutdown Protection: In case of excessive temperature, the IC activates thermal shutdown to prevent damage to the device and the power system.

5. Fault Detection and Reporting: The TPS2350PW detects various fault conditions and provides corresponding fault signals (FLT) for system monitoring and troubleshooting.

Advantages and Disadvantages

Advantages: - Accurate voltage and current monitoring - Programmable protection thresholds - Thermal shutdown protection - Fault detection and reporting

Disadvantages: - Limited number of pins for complex applications - Requires external components for complete power management solution

Working Principles

The TPS2350PW operates by continuously monitoring the input voltage and current using its internal circuitry. It compares these values with the programmable thresholds set for overvoltage, undervoltage, and overcurrent conditions. When any of these thresholds are exceeded, the IC triggers the appropriate protection mechanism, such as shutting down the power supply or activating fault signals.

The IC also incorporates thermal protection, which monitors the temperature and initiates a shutdown if it exceeds safe operating limits. This prevents overheating and potential damage to the device and the power system.

Detailed Application Field Plans

The TPS2350PW is widely used in various power management applications, including:

1. Power Supplies: The IC is commonly employed in power supply units to monitor voltage and current levels, ensuring stable and reliable power delivery.

2. Battery Management Systems: The TPS2350PW is utilized in battery management systems to monitor charging and discharging currents, protecting the battery from overcurrent conditions.

3. Industrial Automation: In industrial automation systems, the IC provides accurate voltage and current monitoring for critical components, preventing damage due to abnormal operating conditions.

4. Renewable Energy Systems: The TPS2350PW plays a crucial role in renewable energy systems by monitoring and protecting power generation and distribution components, such as solar panels and wind turbines.

Detailed and Complete Alternative Models

1. TPS23753PW: This power management IC offers similar features and functionality to the TPS2350PW, with additional support for Power over Ethernet (PoE) applications.

2. TPS23861PWR: Designed specifically for PoE applications, this IC integrates power sourcing equipment (PSE) functionality along with voltage and current monitoring capabilities.

3. TPS2490PW: This power management IC provides advanced protection features, including bidirectional current sensing and adjustable overvoltage and undervoltage thresholds.

4. TPS23756PW: Similar to the TPS2350