company blog about Mingjiada Electronics Supply TI TPS92611 Automotive Single-Channel Linear LED Driver With 300mA Output

Mingjiada Electronics Supply TI TPS92611 Automotive Single-Channel Linear LED Driver With 300mA Output

Automotive lighting systems place high demands on the reliability, dimming capabilities and protection functions of LED drivers. The TI TPS92611 is a 300mA single-channel LED driver designed for automotive applications, suitable for body lighting scenarios such as indicators, tail lights, daytime running lights and interior lighting. Mingjiada Electronics has been a long-standing supplier of the TPS92611, offering genuine stock, sample procurement, BOM fulfilment and product selection advice.

Product Overview
The TPS92611 is a single-channel LED driver for automotive applications developed by Texas Instruments (TI), designed for controlling low-to-medium current LED lighting. Its single-channel architecture is suitable for independently controlling a single LED string or light cluster, facilitating zone-based driving and dimming within vehicle lighting modules. The device is designed for automotive electronic environments, addressing requirements such as wide input voltage tolerance, PWM dimming, fault protection and system reliability.
In automotive lighting design, LED drivers must maintain stable operation under conditions such as battery voltage fluctuations, load transients and temperature variations. The TPS92611’s 300mA drive capability covers a wide range of low-to-medium power LED lighting applications; however, the specific output current capability varies with input voltage, LED forward voltage drop and thermal conditions, and should be evaluated in conjunction with the test conditions specified in the data sheet during the design phase.

Key Features and Design Considerations of the TPS92611:
Single-channel constant-current LED driver with PWM dimming capability
Wide input voltage range: 4.5 V – 40 V
Constant output current, adjustable via a sense resistor
High-precision current regulation, tolerance ±4.6%
Maximum current: 300 mA
Thermal sharing with an external resistor
Low dropout voltage (including current-sensing drop)
Maximum voltage drop: 150 mV at 10 mA
Maximum voltage drop: 400 mV at 70 mA
Maximum voltage drop: 700 mV at 150 mA
Maximum voltage drop: 1.3 V at 300 mA
Diagnostics and Protection
LED open-circuit and short-circuit detection with automatic recovery
Supports diagnostics during low-dropout operation with adjustable thresholds
Fault bus for up to 15 devices, configurable as ‘fail-safe’ or ‘fail-shutdown’
Low quiescent current and fault-mode current (less than 250 µA per device)
Operating junction temperature range: –40 °C to 150 °C

Typical Applications for the TPS92611
Automotive exterior lighting: indicators, tail lights, brake lights, daytime running lights and auxiliary lighting
Automotive interior lighting: reading lights, ambient lighting, instrument panel backlighting and interior lighting
Vehicle lighting modules: low-power LED assemblies, zone-based lighting control
Motorcycle and electric vehicle lighting: drivers for low- to medium-current LED luminaires
Industrial and commercial vehicle lighting: auxiliary lighting systems requiring reliable LED drivers

Supply Information
Shenzhen Mingjiada Electronics Co., Ltd. — a long-standing distributor of TI products — maintains a constant stock of the TPS92611QDGNRQ1 and supports sample orders, small-batch purchases and full-reel supply. To confirm specific part numbers, stock levels and real-time prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.
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