Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | DC DC Regulator |
| Topology | Step-Up (Boost) |
| InternalSwitch(s) | Yes |
| NumberofOutputs | 1 |
| Voltage-Supply(Min) | 2.7V |
| Voltage-Supply(Max) | 18V |
| Voltage-Output | 38V |
| Current-Output/Channel | 700mA (Switch) |
| Frequency | 600kHz |
| Dimming | PWM |
| Applications | Backlight |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 6-WDFN Exposed Pad |
Tổng quan
Description
The TPS61161DRVR is a high-efficiency, step-up LED driver from Texas Instruments, designed for driving white LEDs in backlighting applications. It operates with an input voltage range from 2.7V to 18V, making it versatile for use in a variety of battery-powered devices. This driver features a 40V-rated integrated switch FET, allowing it to drive up to 10 LEDs in series, providing a constant current output to ensure uniform brightness.
The TPS61161DRVR offers a wide range of features, including high efficiency (up to 90%), PWM brightness control, and low shutdown current to conserve power. It utilizes an internal soft-start feature to limit inrush current, which helps in preventing damage to the device during startup. The device also includes over-voltage protection and a current limit feature for enhanced reliability and safety.
Packaged in a compact 6-pin WSON or 8-pin VSON package, the TPS61161DRVR is suitable for compact designs, often found in smartphones, tablets, and other portable electronics requiring efficient LED backlighting solutions.
The TPS61161DRVR offers a wide range of features, including high efficiency (up to 90%), PWM brightness control, and low shutdown current to conserve power. It utilizes an internal soft-start feature to limit inrush current, which helps in preventing damage to the device during startup. The device also includes over-voltage protection and a current limit feature for enhanced reliability and safety.
Packaged in a compact 6-pin WSON or 8-pin VSON package, the TPS61161DRVR is suitable for compact designs, often found in smartphones, tablets, and other portable electronics requiring efficient LED backlighting solutions.
Equivalent
The TPS61161DRVR is a white LED driver for LCD backlights. Equivalent products include the ON Semiconductor NCP5007, Linear Technology LT3491, and Maxim Integrated MAX16803. These alternatives provide similar functionalities such as step-up conversion and LED driving. Always check the datasheet specifications to ensure compatibility with your specific application requirements.
Features
The TPS61161DRVR is a high-efficiency white LED driver from Texas Instruments designed for applications requiring a boost converter. Key features include:
1. Wide Input Voltage Range: Operates from 2.7V to 18V, making it suitable for various battery configurations and input sources.
2. High Efficiency: Achieves high efficiency through a 1.2MHz fixed switching frequency, minimizing external component size and improving performance.
3. LED Current Regulation: Provides up to 400mA LED current with a programmable current limit for multiple LED strings.
4. Dimming Control: Supports both PWM and analog dimming methods, offering flexibility in brightness control.
5. Protection Features: Includes open LED protection, over-voltage protection, and thermal shutdown to enhance reliability and safety.
6. Compact Package: Offered in a 6-pin WSON package, which saves space on the PCB.
This LED driver is ideal for portable devices, backlighting, and any application requiring efficient LED driving solutions.
1. Wide Input Voltage Range: Operates from 2.7V to 18V, making it suitable for various battery configurations and input sources.
2. High Efficiency: Achieves high efficiency through a 1.2MHz fixed switching frequency, minimizing external component size and improving performance.
3. LED Current Regulation: Provides up to 400mA LED current with a programmable current limit for multiple LED strings.
4. Dimming Control: Supports both PWM and analog dimming methods, offering flexibility in brightness control.
5. Protection Features: Includes open LED protection, over-voltage protection, and thermal shutdown to enhance reliability and safety.
6. Compact Package: Offered in a 6-pin WSON package, which saves space on the PCB.
This LED driver is ideal for portable devices, backlighting, and any application requiring efficient LED driving solutions.
Pinout
The TPS61161DRVR is a white LED driver with a boost converter, designed for backlighting applications. It comes in a 6-pin package, specifically the WSON (DRV) package. Here is a brief overview of its pin functions:
1. SW (Pin 1): This is the switch pin connected to the inductor and the rectifier diode. It is the main switching node for the boost converter.
2. GND (Pin 2): Ground pin for the device, providing a return path for internal circuitry and power components.
3. FB (Pin 3): Feedback pin used to regulate the LED current. This pin is connected to the cathode of the LED string.
4. EN (Pin 4): Enable pin used to enable or disable the device. High level enables the device, while low level disables it.
5. PWM (Pin 5): This pin is used for PWM dimming control of the LED brightness.
6. VIN (Pin 6): Input voltage supply pin for the device, providing power to the internal circuitry and the boost converter.
These pin functions allow the TPS61161DRVR to efficiently drive a series of LEDs with high precision and control.
1. SW (Pin 1): This is the switch pin connected to the inductor and the rectifier diode. It is the main switching node for the boost converter.
2. GND (Pin 2): Ground pin for the device, providing a return path for internal circuitry and power components.
3. FB (Pin 3): Feedback pin used to regulate the LED current. This pin is connected to the cathode of the LED string.
4. EN (Pin 4): Enable pin used to enable or disable the device. High level enables the device, while low level disables it.
5. PWM (Pin 5): This pin is used for PWM dimming control of the LED brightness.
6. VIN (Pin 6): Input voltage supply pin for the device, providing power to the internal circuitry and the boost converter.
These pin functions allow the TPS61161DRVR to efficiently drive a series of LEDs with high precision and control.
Manufacturer
The TPS61161DRVR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs, manufactures, and sells a variety of electronic components and systems. TI is well-known for its innovations in the semiconductor industry, particularly in the areas of analog and embedded processing products. The company serves a broad range of industries including automotive, industrial, personal electronics, communications equipment, and enterprise systems. Texas Instruments is recognized for its emphasis on research and development, enabling it to produce cutting-edge technologies and solutions for various applications worldwide.
Application
The TPS61161DRVR is a high-efficiency LED driver commonly used in various applications requiring backlighting and display illumination. Key application areas include:
1. Smartphones and Tablets: For backlighting LCD displays.
2. Automotive: Dashboard and in-vehicle display backlighting.
3. Portable Devices: MP3 players, digital cameras, and GPS devices for screen illumination.
4. Industrial and Medical Equipment: Display backlighting in devices requiring high reliability.
5. Consumer Electronics: Laptops, e-readers, and wearable devices for display brightness control.
Its compact design and efficient power management make it suitable for applications where space and energy efficiency are critical.
1. Smartphones and Tablets: For backlighting LCD displays.
2. Automotive: Dashboard and in-vehicle display backlighting.
3. Portable Devices: MP3 players, digital cameras, and GPS devices for screen illumination.
4. Industrial and Medical Equipment: Display backlighting in devices requiring high reliability.
5. Consumer Electronics: Laptops, e-readers, and wearable devices for display brightness control.
Its compact design and efficient power management make it suitable for applications where space and energy efficiency are critical.
Package
The TPS61161DRVR is a high-efficiency LED driver from Texas Instruments. It comes in a DRV package, specifically a 6-pin WSON (Wafer Level Small Outline No-lead) package, which is compact and suitable for space-constrained applications.
