Overview
The TPS92690Q1PWPR/NOPB from Texas Instruments is a high-voltage, low-side N-channel controller designed for dimmable LED drives. This device is particularly suited for applications requiring adjustable output current sense and supports various topologies such as boost, SEPIC, flyback, and Cuk. It operates over a wide input voltage range of 4.5 to 75 V and features a high-speed PWM controller with an oscillator frequency range up to 2 MHz. The device is packaged in a 16-pin HTSSOP (PWP) with an exposed pad, making it suitable for automotive and other high-reliability applications.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5 to 75 V |
| Current Sense Range | 50 to 500 mV |
| MOSFET Gate Driver Resistance | 2 Ω |
| Oscillator Frequency Range | Up to 2 MHz |
| Package Type | HTSSOP (PWP), 16-Pin |
| Operating Temperature Range | -40 to 125°C |
| Protection Features | Input Undervoltage Protection, Output Overvoltage Protection, Cycle-by-Cycle Current Limit, Thermal Shutdown |
Key Features
- Adjustable current sense (50 to 500 mV)
- Low-side current sensing
- 2-Ω MOSFET gate driver
- PWM dimming input
- Programmable oscillator frequency
- External synchronization capability
- Slope compensation
- Programmable soft-start function
- High-voltage start-up regulator
- Error amplifier and precision reference
- Cycle-by-cycle current limit and thermal shutdown
Applications
The TPS92690Q1PWPR/NOPB is ideal for various LED driver applications, including those requiring dimming capabilities. It is suitable for use in boost, SEPIC, flyback, and Cuk topologies. This device is particularly useful in automotive lighting systems and other high-reliability applications where robust and efficient LED control is necessary.
Q & A
- What is the input voltage range of the TPS92690Q1PWPR/NOPB?
The input voltage range is from 4.5 to 75 V. - What is the current sense range of this device?
The current sense range is adjustable from 50 to 500 mV. - What type of package does the TPS92690Q1PWPR/NOPB come in?
The device is packaged in a 16-pin HTSSOP (PWP) with an exposed pad. - What are the protection features of the TPS92690Q1PWPR/NOPB?
The device includes input undervoltage protection, output overvoltage protection, cycle-by-cycle current limit, and thermal shutdown. - What is the oscillator frequency range of this device?
The oscillator frequency range is up to 2 MHz. - Is the TPS92690Q1PWPR/NOPB suitable for automotive applications?
Yes, it is designed for high-reliability applications, including automotive lighting systems. - What topologies does the TPS92690Q1PWPR/NOPB support?
The device supports boost, SEPIC, flyback, and Cuk topologies. - Does the TPS92690Q1PWPR/NOPB have PWM dimming capability?
Yes, it includes a PWM dimming input. - Can the oscillator frequency be programmed?
Yes, the oscillator frequency is programmable. - What is the operating temperature range of the TPS92690Q1PWPR/NOPB?
The operating temperature range is from -40 to 125°C.
