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new products
TI’s new automotive LED lighting
controller puts the power in designers’
hands
Texas Instruments (TI) today introduced the first 3-channel
high-side linear automotive light-emitting diode (LED)
controller without internal MOSFETs which gives designers
greater flexibility for their lighting designs. The TPS92830-
Q1’s novel architecture enables higher power and better
thermal dissipation than conventional LED controllers,
and are particularly beneficial for automotive LED lighting
applications that require high performance and reliability.
Conventional LED drivers integrate the MOSFET, which
limits designers’ ability to customize features. With that
type of driver, designers often must make significant
design modifications to achieve the desired system
performance. The TPS92830-Q1 LED controller’s flexible
on-board features give designers the freedom to select
the best MOSFET for their system requirements. With this
new approach, designers can more quickly and efficiently
optimize their lighting power designs for automotive
system requirements and desired dimming features.
Key features and benefits
Flexibility:
The on-chip pulse-width modulation
(PWM) generator or PWM input enables flexible
dimming. Designers can use either the analog control
or PWM to manage an output current of more than 150
mA per channel, to power automotive rear combination
lamps and daytime running lights.
Improved thermal dissipation:
By pairing the LED
controller with an external MOSFET, the designer can
achieve the required high power output while distributing
the power across the controller and MOSFET to avoid
system overheating. By retaining linear architecture,
the TPS92830-Q1 provides improved electromagnetic
interference (EMI) and electromagnetic compatibility
(EMC) performance.
Greater system reliability:
Advanced protection
and built-in open and short detection features help
designers meet original equipment manufacturer (OEM)
system reliability requirements. The output current
derating feature protects the external MOSFET under
high voltage conditions to ensure system reliability.
The TPS92830-Q1 expands TI’s extensive portfolio
of LED drivers, design tools and technical resources
that help designers implement innovative automotive
lighting features.
Tools and support
Support tools include the TPS92830-Q1 3-Channel
High-Current Linear LED Controller evaluation module.
Engineers can jump-start automotive lighting systems
designs using the TPS92830-Q1 with the EMC Compliant
Automotive Daytime Running Light and Position Light
Reference Design with LED Thermal Protection.
Availability, packaging and pricing
The TPS92830-Q1 is now available through the TI
store and authorized distributors. Offered in a thin
small outline package (TSOP), it is priced at US$1.96 in
1,000-unit quantities.
Learn more about TI’s lighting products
Read the Power House blog post: “A Wiser Choice for
Automotive Lighting.”
Learn more with the app note: “How to Select
MOSFET for TPS92830-Q1 Circuit“
Visit the TI E2E™ Community Power Management
forum to search for solutions, get help, share
knowledge and solve problems with fellow engineers
and TI experts.
Compact Open Frame Ac-Dc Power
Supplies Carry IEC 60601-1 4th Edition
Approvals for Medical Applications
CUI’s Power Group today announced the introduction
of five new open frame series, ranging from 180 W up
to 550 W, to its line of internal ac-dc medical power
supplies. Certified to the medical 60601-1 edition 3.1
safety standards for 2 x MOPP applications and 4th
edition EMC requirements, the VMS-180, VMS-225,
VMS-275, VMS-350, and VMS-550 series feature high
efficiency up to 94% and high power densities up to
30 W/in3. The new models are housed in 2 x 4 inch
(50 x 101 mm) and 3 x 5 inch (76 x 127 mm) packages
with profiles measuring as low as 0.75 inches (19 mm),
providing a compact, high density solution for medical
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