Mingjiada Electronics stocks Texas Instruments’ automotive-grade TPS92630 three-channel linear LED driver. Designed specifically for automotive exterior and interior lighting applications, this device has become the ideal choice for applications such as rear lights, daytime running lights, fog lights and interior lighting, thanks to its comprehensive diagnostic functions, built-in protection mechanisms and flexible dimming control. Below is a detailed introduction to the product, along with its features, specifications and application scenarios.
TPS92630 Product Overview
The TPS92630 is a three-channel linear LED driver from Texas Instruments featuring both analogue and PWM dimming control. The device is AEC-Q100 certified for automotive applications, with a Temperature Class 1 rating (operating temperature range of –40°C to 125°C), making it suitable for harsh automotive environments. A single device can drive up to three LED strings, each containing between 1 and 3 LEDs, with a maximum total current per channel of 150 mA. When channels are operated in parallel, a maximum drive current of 450 mA can be provided. It is housed in a 16-pin heat-sink-enhanced HTSSOP (PWP) package measuring 4.40 mm × 5.00 mm.
Key Features of the TPS92630
Input voltage range: 5 V to 40 V
Maximum output current per channel: 150 mA
Maximum output current in parallel mode: 450 mA
Channel accuracy (IOUT > 30 mA): ±1.5% per channel
Device accuracy (IOUT > 30 mA): ±2.5% per device
Voltage drop (at 60mA): 400mV per channel maximum
Voltage drop (at 150mA): 0.9V per channel maximum
Quiescent current: 0.5mA (typical)
Shut-down current: 10µA
Operating ambient temperature range: -40°C to 125°C
Operating junction temperature range: -40°C to 150°C
Package: 16-pin HTSSOP (PWP)
AEC-Q100: Grade Temperature Grade 1 / HBM ESD H2 / CDM C3B
Key Features of the TPS92630
Flexible dimming control
Analogue and PWM dimming: Supports both analogue dimming and pulse width modulation (PWM) dimming, enabling variable-intensity LED lighting control
Independent PWM Dimming per Channel: All three channels support independent PWM dimming, meeting the requirements for differentiated control of multi-zone lighting
Comprehensive Diagnostic and Protection Functions
Open-Circuit and Short-Circuit LED Detection: Built-in anti-glitch pulse timer reliably detects open-circuit and short-circuit faults in LEDs
Single-LED Short-Circuit Detection: Each channel provides LED string voltage feedback, supporting detection of short-circuit faults in individual LEDs
Dedicated Fault Pin: A dedicated fault pin is provided for single-LED short-circuit faults
Fault Reporting Bus: Open-circuit, short-circuit and thermal shutdown faults are reported via the fault pin; supports parallel connection of up to 15 devices on a single bus
Thermal Shutdown Protection: Automatically shuts down when the chip overheats to prevent device damage
High Precision and Flexibility
High-precision constant-current output: Accuracy of up to ±1.5% per channel ensures consistent LED brightness
Adjustable constant-current setting: Output current is set via an external reference resistor
Channel parallel operation: Multiple channels within a single IC can be used in parallel to provide higher current drive capability
Low dropout voltage: Maximum dropout voltage of just 400 mV at 60 mA, effectively reducing power consumption
Slow input voltage adaptation: Capable of adapting to slow input voltage change rates as low as 0.5 V/minute
Typical Applications
The TPS92630 is specifically designed for automotive LED lighting applications and is widely used in the following scenarios:
I. Automotive exterior lighting
Rear lights: As the core component of automotive rear light LED drivers, it provides stable and reliable constant-current drive
Parking Lights/Brake Lights (Stop/Taillight): Supports rapid response and precise control of high-brightness brake lights
Daytime Running Lights (DRL): Meets the requirements for high reliability and long service life in daytime running lights
Position Lights: Provides stable, low-power lighting drive
Fog Lights: Provides reliable lighting drive under adverse weather conditions
II. Automotive Interior Lighting
Interior Lighting: Includes reading lights, ambient lighting, footwell lighting, etc.
III. Other Applications
Auxiliary lighting functions for automotive headlamps
Variable-intensity LED lighting (medium power range)
Summary of Product Advantages
Automotive-grade certification: AEC-Q100 Temperature Grade 1, suitable for harsh environments ranging from -40°C to 125°C
Wide input voltage range: 5V to 40V, compatible with 12V and 24V automotive battery systems
High-precision constant current: ±1.5% accuracy per channel, ensuring consistent brightness across multiple LED channels
Comprehensive diagnostic protection: open-circuit/short-circuit detection, single-LED short-circuit detection and thermal shutdown, enhancing system reliability
Flexible dimming: Dual-mode (analogue and PWM) with independent dimming per channel
Multi-device parallel connection: Supports up to 15 devices connected in parallel via a fault bus
Mingjiada Electronics has all the above products in stock; enquiries and orders are welcome. For further product details, sample requests or bulk purchases, please contact Mingjiada Electronics.
Tags: TPS92630QPWPRQ1, TPS92630QPWPRQ, TPS92630QPWPR, TPS92630QPWP, TPS92630QPW, TPS92630QP, TPS92630Q, TPS92630
আপনার বার্তাটি 20-3,000 টির মধ্যে হতে হবে!
Bengali
