TPS82085SILR Characteristics, Specifications, Application Cases and More

Ⅰ. What is TPS82085SILR?

Ⅱ. Characteristics of TPS82085SILR

Ⅲ. Device functional modes

Ⅳ. Specifications of TPS82085SILR

Ⅴ. Thermal consideration of TPS82085SILR

Ⅵ. What advanced technologies does TPS82085SILR use?

Ⅶ. Competitive product analysis of TPS82085SILR

Ⅷ. Application cases of TPS82085SILR

TPS82085SILR is a highly integrated, high-performance power management IC produced by Texas Instruments. It has the characteristics of low power consumption, high performance, and high integration. It is mainly used in the automotive and industrial fields to provide reliable power supply for various electronic control systems, such as body controllers, engine controllers and vehicle infotainment systems. This article will introduce the features, specifications and applications of TPS82085SILR to help you better understand and use this device.

The TPS82085SILR stands as an 8-channel power module within the domain of switching voltage regulators, packaged in uSIL-8 configuration. Operating within a temperature range spanning from -40°C to 125°C, this electronic component assures optimal functionality. Featuring an input voltage range of 2.5V to 6V and an output voltage spectrum spanning from 0.8V to 6V, it offers versatile adaptability to diverse operational requirements. With a swift switching frequency of 2.4MHz and a low quiescent current of 286 uA, this module ensures efficient power management. Equipped with 1 output and 8 pins, it enables precise voltage adjustment for various devices. To ensure secure transportation and expedite post-delivery assembly, this component will be encased in tape and reel packaging during shipment.

Alternatives and equivalents:

• G809A2012321TLF

• MAXM17514ALI+T

• TPS82085SILT

Here are some key features of the TPS82085SILR:

1. Low power consumption: TPS82085SILR adopts TI's low power consumption technology, which gives it significant advantages in power consumption.

2. High performance: TPS82085SILR has high-performance processing capabilities and can meet the needs of various high-performance applications.

3. Easy to develop: TPS82085SILR adopts TI's easy-to-develop tools and technologies, giving it significant advantages in development.

4. Rich peripheral interfaces: TPS82085SILR has rich peripheral interfaces, such as UART, SPI, I2C, etc., which can meet the needs of various applications.

1. Power good output

TPS82085SILR has a power good (PG) output. The PG pin goes high impedance once the output is above 95 percent of the nominal voltage, and is driven low once the output voltage falls below typically 90 percent of the nominal voltage. an open drain output and is specified to sink up to 1 mA. The power good output requires a pull-up resistor connecting to any voltage rail less than 6 V. The PG signal can be used for sequencing of multiple rails by connecting it to the EN pin of other converters. Leave the PG pin floating when it is not used. The following table shows the PG pin logic.

2. Enable and disable

The TPS82085SILR is enabled by setting the EN pin to a logic High (typical 0.8 V). Accordingly, shutdown mode is forced if the EN pin is pulled Low (typical 0.7 V) with a shutdown current of typically 0.7 μA. An internal resistor of 260Ω discharges the output via the VOUT pin smoothly when the device is disabled. The output discharge function also works when thermal shutdown, undervoltage lockout or short circuit protection are triggered. The output discharge function stops working when the input voltage has decreased to around 0.5V . An internal pull-down resistor of 400 kΩ is connected to the EN pin when the EN pin is Low. The pull-down resistor is disconnected when the EN pin is High.

• Part Status: Active

• Manufacturer: Texas Instruments

• Package / Case: uSIL-8

• Packaging: Tape and Reel

• Topology: Buck

• Quiescent Current: 286 uA

• Switching Frequency: 2.4 MHz

• Load Regulation: 0.16 %/A

• Line Regulation: 0.02%/V(Typ)

• Input Voltage: 2.5V ~ 6V

• Output Voltage: 0.8V ~ 6V

• Operating Temperature: -40°C ~ 125°C

• Mounting Style: SMD/SMT

• Pin Count: 8

• Number of Outputs: 1

• Product Category: Switching Voltage Regulators

When the TPS82085SILR operates in high ambient temperatures or delivers high output power, its output current must be reduced. The extent of this reduction depends on factors such as input voltage, output power, PCB layout design, and environmental thermal conditions. The TPS82085SILR module temperature must be kept less than the maximum rating of 125°C. Three basic approaches for enhancing thermal performance are listed below:

1. Introduce airflow into the system

2. Improve the thermal coupling of the component to the PCB

3. Improve the power dissipation capability of the PCB design

To estimate approximate module temperature of TPS82085SILR, apply the typical efficiency stated in this datasheet to the desired application condition for the module power dissipation, then calculate the module temperature rise by multiplying the power dissipation by its thermal resistance.

First of all, TPS82085SILR is equipped with a variety of protection mechanisms, such as over-voltage protection, under-voltage protection, over-current protection, etc., to ensure its stable and reliable operation in various operating environments. These protection mechanisms can effectively prevent device damage or performance degradation caused by abnormal conditions.

Secondly, it adopts Texas Instruments' unique current mode control technology, which enables fast transient response and precise output voltage control. By monitoring and adjusting the current in real time, the TPS82085SILR ensures that a stable output voltage is provided under a variety of load conditions to meet the demands of high-performance applications.

In addition, the device utilizes a highly integrated PMIC (Power Management Integrated Circuit) design. This design integrates multiple power management functions on a single chip, which reduces system size, lowers production costs, and improves power system reliability. The highly integrated design also helps simplify system design and wiring, improving overall system performance.

Finally, the TPS82085SILR also utilizes advanced switching frequency and PWM (pulse width modulation) technology. The converter operates at a nominal switching frequency of up to 2.4MHz, which allows it to quickly adjust the output voltage in a short period of time for fast response to load changes. At the same time, the PWM technology enables the converter to adjust the power output according to actual demand, improving power utilization and reducing power consumption.

Compared with other similar power management products in the market, TPS82085SILR has the following advantages:

1. Higher integration: TPS82085SILR integrates a multi-channel power supply module, which can reduce system size and production costs.

2. Better compatibility: The device supports a variety of package forms and voltage specifications, which can meet the needs of different customers with wider applicability.

3. More protection mechanisms: The device has over-voltage protection, under-voltage protection, over-current protection and other multiple protection mechanisms, can work stably in harsh environments, improve the safety and stability of the power system.

4. Faster transient response: TPS82085SILR using Texas Instruments unique current mode control technology, can achieve faster transient response, for a variety of electronic control systems to provide a more stable power supply.

The following lists some of the TPS82085SILR applications:

1. Medical equipment

TPS82085SILR is suitable for medical equipment such as portable ventilators, portable blood pressure monitors and blood glucose monitors. These medical devices usually need to operate stably for a long time, and have very high requirements for the stability and efficiency of the power supply, the TPS82085SILR, with its excellent power management features, can ensure that these medical devices get a stable and reliable power supply, so as to ensure that the normal operation of the equipment and accurate measurement.

2. Industrial automation and instrumentation

(1) Industrial controllers: TPS82085SILR also has excellent anti-interference capabilities and can withstand electromagnetic interference and power fluctuations in industrial environments, ensuring the normal operation of controllers and PLCs.

(2) Sensor networks: In industrial environments, the TPS82085SILR can be used to provide power to sensor nodes to monitor and control a variety of parameters such as temperature, pressure and humidity.

3. Automotive electronic systems

(1) Driver assistance system: TPS82085SILR also has excellent anti-interference ability, can effectively resist a variety of electromagnetic interference from inside and outside the vehicle, to ensure the accuracy of signal transmission and data processing of the driver assistance system.

(2) In-vehicle entertainment system: The TPS82085SILR provides high-quality power support for audio, video and infotainment systems inside vehicles. Whether it is the moving melody played by the high-end sound system, the vivid pictures presented by the high-definition display, or even the navigation, communication and other functions provided by the complex infotainment system, TPS82085SILR can ensure that they receive stable and sufficient power supply.

4. Portable electronic devices

(1) Smartphones and Tablet PCs: The TPS82085SILR can be used as a power management device in mobile devices to provide a stable power supply for processors, displays and other electronic components. Its high efficiency and small size make it ideal for portable devices, helping to extend battery life and reduce charging time.

(2) Portable video game consoles: The TPS82085SILR provides efficient power management of various electronic components for portable game consoles such as the Nintendo Switch. Whether it's a processor, graphics chip or other critical components, the TPS82085SILR can precisely control their power supply to ensure they receive stable current and voltage during operation, thus avoiding performance degradation or malfunction due to power fluctuations.

Frequently Asked Questions

1. What does power module do?

A power module offers efficient power conversion from one form to another and provides reliable high-power output for powering different devices and systems. Its main purpose is to provide reliable, safe, and high-performance power to electronic components and systems.

2. What features does the TPS82085SILR offer for protection?

The TPS82085SILR incorporates features such as overcurrent protection, thermal shutdown, and under-voltage lockout for robust protection of the system.

3. What are some typical applications of the TPS82085SILR?

The TPS82085SILR is commonly used in various battery-powered applications, portable equipment, and other systems where space and efficiency are critical.