TPS92662AQPHPRQ1 Alternatives, Characteristics, Functions and Other Details
01 March 2024
Ⅰ. Introduction to TPS92662AQPHPRQ1
Ⅱ. Characteristics of TPS92662AQPHPRQ1
Ⅲ. Functions of TPS92662AQPHPRQ1
Ⅳ. Circuit diagram of the TPS92662AQPHPRQ1
Ⅴ. How reliable is the TPS92662AQPHPRQ1?
Ⅵ. TPS92662AQPHPRQ1 technical parameters
Ⅶ. How does TPS92662AQPHPRQ1 perform fault detection and protection?
TPS92662AQPHPRQ1 is an automotive-grade LED driver chip, which is mainly used in the fields of ADB or non-glare high beams, automotive headlighting systems, and high-brightness LED matrix systems. In this article, TPS92662AQPHPRQ1 will be introduced in terms of features, functions and technical parameters.
The TPS92662AQPHPRQ1 is a programmable Pierce crystal oscillator driver that achieves optimum performance by selecting the drive strength based on the recommendations of the quartz crystal or ceramic resonator manufacturer. In addition, it is equipped with a clock buffer with selectable drive strength. By adjusting the drive strength of the clock buffer, the rise and fall times of the clock signal and electromagnetic interference (EMI) can be effectively controlled. When necessary, it is possible to disable the clock buffer to eliminate noise generated by the clock signal and minimize electromagnetic interference (EMI).
The TPS92662AQPHPRQ1 is part of the TPS92662 family of products designed to drive high-power LEDs in vehicle headlights, taillights and other automotive lighting applications. The chip is packaged in QFN, which not only has excellent heat dissipation performance, but is also easy to solder. TPS92662AQPHPRQ1 integrates high voltage and high current circuits to provide stable and reliable LED driving performance. Additionally, it supports a multipoint Universal Asynchronous Receiver Transmitter (UART) serial interface and is compatible with the TPS92662-Q1 and TPS92663-Q1 devices. At the same time, it is also equipped with an I2C communication interface for reading or writing calibration data from external EEPROM.
Alternatives and equivalents:
• 12 integrated bypass switches
• External EEPROM I²C interface
• Programmable 10-bit PWM dimming
• Input voltage range: 4.5V to 60V
• LED open and short detection and protection
• AEC-Q 100 qualified for automotive applications
- Geade 1: -40°C to 125°C ambient operating temperature
- Device HBM classification level H1C
- Device CDM classification level C5
• Multi-drop UART communication interface
- Compatible with TPS92662-Q1 and TPS92663-Q1 devices
- Compatible with CAN physical layer
• Eight-bit ADC with two MUXed inputs
• Programmable crystal oscillator driver and clock buffer strength
- Improved radiated and conducted EMI performance
• Supports multi-LMM synchronization for more than 12-LED string via time division multiplexing
1. Multi-channel driver: TPS92662AQPHPRQ1 integrates multiple independent LED driver channels inside, which can control multiple LED lights at the same time, providing great flexibility and convenience for automotive lighting systems. Each LED driver channel is equipped with an independent control function, which allows you to adjust the color, brightness or blinking effect of each LED light, etc. as needed.
2. Temperature protection: TPS92662AQPHPRQ1 built-in temperature sensor can monitor the chip and its surrounding environment in real time temperature. This feature is particularly important for automotive LED lighting systems, because in the car interior, especially in areas such as the engine compartment, the temperature may rise rapidly due to various factors. By continuously monitoring the temperature, the chip is able to sense changes in the ambient temperature in a timely manner, and make corresponding adjustments accordingly.
3. Fault detection and protection: The chip is equipped with an advanced fault detection mechanism. It can monitor the working status of the LED driver circuit in real time, including key parameters such as current, voltage and temperature. Once abnormal conditions are detected, such as excessive current, unstable voltage or high temperature, the chip will immediately start the protection program.
4. High-precision current control: TPS92662AQPHPRQ1 adopts advanced current control technology and precise algorithm, which can accurately control the amount of current passing through the LED lights. This control not only ensures the brightness stability of the LED lights in the normal operating range, but also prevents damage or performance degradation of the LED lights caused by too much or too little current.
5. PWM dimming control: TPS92662AQPHPRQ1 internal integrated PWM dimming function, the user can through external control signals, such as the output signal of the microcontroller, to adjust the brightness of the LED lights. When the duty cycle of the PWM signal is increased, the brightness of the LED light increases; conversely, when the duty cycle is decreased, the brightness of the LED light decreases. This dimming method not only has a fast response speed, but also can realize a smooth brightness transition, providing users with a more comfortable and natural lighting experience.
First of all, TPS92662AQPHPRQ1 meets automotive grade reliability requirements. This means that the chip has been rigorously tested and verified to ensure that it can work properly in harsh environments such as low temperature, high temperature, high humidity, vibration and electromagnetic interference. This automotive-grade reliability ensures the stability and durability of the chip in real-world applications.
In addition, the TPS92662AQPHPRQ1 integrates a diverse range of protection functions, including but not limited to temperature monitoring, fault detection and protection. These protection mechanisms enable the chip to react quickly when it encounters abnormal conditions, thus avoiding potential damage or adverse consequences. For example, when the chip detects an abnormally high internal temperature, it will intelligently adjust the LED drive current to prevent thermal damage. This automatic protection mechanism significantly improves the durability and stability of the chip.
Additionally, the TPS92662AQPHPRQ1 utilizes advanced processes and materials to ensure good electrical performance and long-term stability. The chip also undergoes a rigorous production and quality control process to ensure that each chip meets high standards of quality.
In summary, the TPS92662AQPHPRQ1 chip demonstrates extremely high reliability in design, production and testing.
• It has 12 channels.
• Its input voltage is 4.5V to 60V.
• Its installation method is SMD or SMT.
• The operating temperature of TPS92662AQPHPRQ1 is -40°C to 125°C.
• The manufacturer of TPS92662AQPHPRQ1 is Texas Instruments.
• TPS92662AQPHPRQ1 belongs to the category of LED lighting drivers.
• TPS92662AQPHPRQ1 has 48 pins and comes in HTQFP-48 package and tape and reel packaging.
The TPS92662AQPHPRQ1 is designed to effectively protect the LED system from various faults and abnormalities by integrating a variety of fault detection and protection functions. It mainly has the following kinds:
1. Open circuit detection: If an open circuit occurs in the LED output line, the driver is also able to detect it and take appropriate measures. Usually, the driver will issue a warning signal or take measures to prevent damage to the driver or other systems.
2. Temperature monitoring and protection: TPS92662AQPHPRQ1 also integrates a temperature sensor to monitor the temperature around the chip and LEDs. If the temperature exceeds the safe range, the driver will trigger a thermal protection mechanism, such as reducing the brightness of the LED or lowering the output current to prevent overheating from damaging the LED or other components.
3. LED current and voltage monitoring: TPS92662AQPHPRQ1 has a built-in LED current and voltage monitoring circuit. By monitoring the LED current and voltage in real time, the driver can detect whether the LED is working properly and whether there is any overload or other fault conditions. If the LED current or voltage exceeds the preset safety range, the driver will take corresponding protective measures, such as reducing the output current or closing the output channel.
4. Input undervoltage/overvoltage protection: The chip not only has input undervoltage and overvoltage protection, but also accurately detects abnormalities in the input voltage. Once abnormal voltage is detected, it will quickly take appropriate measures to ensure the stable operation and safety of the whole system.
5. Over-current protection: TPS92662AQPHPRQ1 has an excellent over-current protection function. Once the LED drive current is detected to exceed the preset safety threshold, it will stop the output immediately. This mechanism effectively prevents the LED or other circuits from suffering damage due to overcurrent, providing a solid protective barrier for the entire system.
6. Short-circuit protection: When a short-circuit occurs in the LED output line, the TPS92662AQPHPRQ1 is able to detect it in time and take immediate measures to prevent damage to the circuit or the LED. The driver may be able to protect the circuit by shutting down the affected output channel or limiting the output current.
Frequently Asked Questions
1. What is the replacement and equivalent of TPS92662AQPHPRQ1?
You can replace the TPS92662AQPHPRQ1 with ISL78100ARZ, LT3517IUF#TRPBF, MP2483DQ-LF-P or NCP3066MNTXG.
2. What is the primary function of TPS92662AQPHPRQ1?
The primary function of TPS92662AQPHPRQ1 is to drive high-brightness LEDs efficiently for automotive lighting systems.
3. How does TPS92662AQPHPRQ1 protect itself from overheating?
TPS92662AQPHPRQ1 incorporates thermal shutdown protection, which disables the device when the junction temperature exceeds a safe threshold, preventing damage due to overheating.
