Product details

Number of channels (#) 2 Topology Buck Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) 125 to -40 Vin (Min) (V) 4.5 Vin (Max) (V) 65 Vout (Min) (V) 2.8 Vout (Max) (V) 54 Iout (Max) (A) 2 Iq (Typ) (mA) 5 Features Fault Detection, LED Open Detection, Precision Dimming Control, Thermal Error Flag, Thermal Shutdown
Number of channels (#) 2 Topology Buck Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (C) 125 to -40 Vin (Min) (V) 4.5 Vin (Max) (V) 65 Vout (Min) (V) 2.8 Vout (Max) (V) 54 Iout (Max) (A) 2 Iq (Typ) (mA) 5 Features Fault Detection, LED Open Detection, Precision Dimming Control, Thermal Error Flag, Thermal Shutdown
HTSSOP (DAP) 32
  • AEC-Q100 qualified for automotive applications
    • Grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM classification level H1C
    • Device CDM classification level C2
  • 4.5-V to 65-V wide input voltage range
  • Up to 2-A output current with 4% accuracy
  • Adaptive on-time average current control
  • Nominal switching frequency
    • 385 kHz and 435 kHz for channel 1 and channel 2
    • 2 MHz and 2.1 MHz for channel 1 and channel 2
  • Advanced dimming operation
    • Precision analog dimming
    • Supports external PWM dimming input
    • Optimized for external shunt dimming including LED matrix manager
  • Cycle-by-cycle switch overcurrent protection
  • Switch thermal protection
  • LED open and short fault monitoring and reporting
  • AEC-Q100 qualified for automotive applications
    • Grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM classification level H1C
    • Device CDM classification level C2
  • 4.5-V to 65-V wide input voltage range
  • Up to 2-A output current with 4% accuracy
  • Adaptive on-time average current control
  • Nominal switching frequency
    • 385 kHz and 435 kHz for channel 1 and channel 2
    • 2 MHz and 2.1 MHz for channel 1 and channel 2
  • Advanced dimming operation
    • Precision analog dimming
    • Supports external PWM dimming input
    • Optimized for external shunt dimming including LED matrix manager
  • Cycle-by-cycle switch overcurrent protection
  • Switch thermal protection
  • LED open and short fault monitoring and reporting

The TPS92519-Q1 is a monolithic dual synchronous buck LED driver with a wide 4.5-V to 65-V operating input voltage range that can independently power two strings of series connected LEDs. The TPS92519-Q1 implements an adaptive on-time average current mode control and is designed to be compatible with shunt FET dimming techniques and LED matrix manager-based dynamic beam headlamps. The adaptive on-time control provides near constant switching frequency that can be set using FSET input. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input voltage, output voltage and ambient temperature range.

The high performance LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming response with over 16:1 range is obtained by varying the voltage from 140 mV to 2.45 V across the high Impedance Analog Adjust (IADJ) input. PWM dimming of LED current is achieved by directly modulating the corresponding UDIM input pin with the desired duty cycle and frequency. The device supports high frequency shunt FET dimming and is compatible with pixel control techniques using LED matrix manager.

The TPS92519-Q1 supports parallel operation of two or more channels thus enabling flexibility required to drive high current LEDs or laser diodes. Current is shared between parallel channels based on IADJ input independent of component tolerances and parasitics.

The TPS92519-Q1 incorporates advanced fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage and thermal shutdown. The device includes an open drain fault output to indicate output open and short conditions.

The TPS92519-Q1 is available in a 8.1-mm × 11-mm thermally-enhanced 32-pin HTSSOP package with a 2.75-mm × 3.45-mm bottom-exposed pad.

The TPS92519-Q1 is a monolithic dual synchronous buck LED driver with a wide 4.5-V to 65-V operating input voltage range that can independently power two strings of series connected LEDs. The TPS92519-Q1 implements an adaptive on-time average current mode control and is designed to be compatible with shunt FET dimming techniques and LED matrix manager-based dynamic beam headlamps. The adaptive on-time control provides near constant switching frequency that can be set using FSET input. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input voltage, output voltage and ambient temperature range.

The high performance LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming response with over 16:1 range is obtained by varying the voltage from 140 mV to 2.45 V across the high Impedance Analog Adjust (IADJ) input. PWM dimming of LED current is achieved by directly modulating the corresponding UDIM input pin with the desired duty cycle and frequency. The device supports high frequency shunt FET dimming and is compatible with pixel control techniques using LED matrix manager.

The TPS92519-Q1 supports parallel operation of two or more channels thus enabling flexibility required to drive high current LEDs or laser diodes. Current is shared between parallel channels based on IADJ input independent of component tolerances and parasitics.

The TPS92519-Q1 incorporates advanced fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage and thermal shutdown. The device includes an open drain fault output to indicate output open and short conditions.

The TPS92519-Q1 is available in a 8.1-mm × 11-mm thermally-enhanced 32-pin HTSSOP package with a 2.75-mm × 3.45-mm bottom-exposed pad.

Download

Similar products you might be interested in

open-in-new Compare products
Same functionality with different pin-out to the compared device.
TPS92515AHV-Q1 ACTIVE 65-V automotive 2-A shunt-PWM dimmable LED driver with Integrated NFET 2-A single-channel asynchronous buck
TPS92520-Q1 ACTIVE 1.6-A dual synchronous buck LED driver with SPI 1.6-A dual synchronous buck with SPI

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 8
Type Title Date
* Data sheet TPS92519-Q1 4.5-V to 65-V Dual 2-A Synchronous Buck LED Driver datasheet 19 Aug 2021
Application note Paralleling LED Driver Channels to Support Higher Currents Using TPS92520-Q1 or 10 Sep 2021
Certificate TPS92519EVM-169 EU RoHS Declaration of Conformity (DoC) 08 Sep 2021
User guide TPS92519-Q1 Evaluation Module User's Guide 29 Jul 2021
Technical article Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
Technical article LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
Technical article Take better selfies with innovative LED flashes 18 Nov 2014
Technical article Solving the automotive EMI issues in new cars with all the screens 11 Sep 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS92519EVM-169 — TPS92519-Q1 evaluation module for automotive 2-A dual synchronous buck LED driver

The TPS92519EVM-169 features the TPS92519-Q1 IC providing two current regulated channels of up to 2.0 Amps and 30 W per channel. (Total output power limited to 60 W)

In stock
Limit: 5
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 Download
HTSSOP (DAP) 32 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos