Calculation tool
TPS92621-CALC — TPS92621-Q1 external components calculation tool
TPS92621-Q1 calculation tool
TPS92621-Q1
Automotive, single-channel high-current 40-V high-side LED driver with thermal sharing
Data sheet
TPS92621-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to 125°C, T A
- Wide input voltage range: 4.5 V to 40 V
- Thermal sharing by external shunt resistor
- Low supply current in fault mode
- Single high-precision current regulation:
- Up to 300-mA current output
- ±5% accuracy over full temperature range
- Current setting by resistor
- PWM pin for brightness control
- Low dropout voltage:
- Maximum dropout: 300mV for 150 mA
- Maximum dropout: 600mV for 300 mA
- Diagnostics and protection
- LED open-circuit with auto-recovery
- LED short-to-GND with auto-recovery
- Diagnostic enable with adjustable threshold
- Fault bus configurable as one-fails-all-fail
- Thermal shutdown
- Operation junction temperature range:–40°C to 150°C
The TPS92621-Q1 single-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92621-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 300 mA. Shunt resistor is leveraged to share output current and dissipate power out of the driver. The device full-diagnostic capabilities include LED open, LED short-to-GND circuit, and device overtemperature protection.
The one-fails-all-fail feature of TPS92621-Q1 can work together with other LED drivers, such as the TPS9261x-Q1, TPS9262x-Q1, TPS9263x-Q1, and TPS92830-Q1 devices, to address different requirements.
Technical documentation
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View all 3 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TPS92621-Q1 Single-Channel, Automotive, High Side LED Driver with Thermal Sharing datasheet | PDF | HTML | 05 Apr 2023 |
| EVM User's guide | TPS92621-Q1 Evaluation Module User's Guide | PDF | HTML | 26 Jul 2023 | |
| Certificate | TPS92621Q1EVM EU Declaration of Conformity (DoC) | 24 Jul 2023 |
Design & development
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Evaluation board
TPS92621Q1EVM — TPS92621-Q1 evaluation module for single-channel 40-V high-side LED driver with thermal sharing
The TPS92621Q1EVM helps designers evaluate the operation and performance of the TPS92621-Q1 which is a linear, single-channel LED driver with full LED diagnostic for automotive lighting applications. Thermal is a design challenge when using a linear LED driver in automotive lighting end (...)
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HVSSOP (DGN) | 8 | Ultra Librarian |
Ordering & quality
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