LP8550TLE/NOPB Semiconductors - ICs by Texas Instruments

LED DRIVER BOOST 1.25MHZ DSBGA-25

Status: Unknown
Series: -
RoHS: Unknown
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The LP8550 is a white-LED driver with integrated boost converter. It has six adjustable current sinks which can be controlled by PWM input or with I2Ccompatible serial interface. The boost converter has adaptive output voltage control based on the LED driver voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. LED outputs have 8-bit current resolution and up to 13-bit PWM resolution with additional 1- to 3-bit dithering to achieve smooth and precise brightness control. Proprietary Phase Shift PWM control is used for LED outputs to reduce peak current from the boost converter, thus making the boost capacitors smaller. The Phase Shifting scheme also eliminates audible noise. Automatic PWM dimming at lower brightness values and current dimming at higher brightness values can be used to improve the optical efficiency. Internal EEPROM is used for storing the configuration data. This makes it possible to have minimum external component count and make the solution very small. The LP8550 has safety features which make it possible to detect LED outputs with open or short fault — low input voltage and boost overcurrent conditions are monitored, and chip is turned off in case of these events. Thermal de-rating function prevents overheating of the device by reducing backlight brightness when set temperature has been reached.

Where to Buy

Prices starting from US$0.91

Distributor Stock
Logo for Farnell
Farnell
from US$1.54
23
in stock
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Logo for Texas Instruments
Texas Instruments
from US$0.91
80,934
in stock
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Logo for RS
RS
from US$1.80
730
in stock
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Logo for Newark Electronics
Newark Electronics
from US$2.48
23
in stock
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Logo for element14
element14
from US$1.45
23
in stock
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Specifications

Device Topology Boost (Step Up)
Input Voltage Min 5.5V
Input Voltage Max 22V
Output Voltage Max 40V
Output Current Max 50mA
Switching Frequency 1.25MHz
No. of Outputs 6Outputs
IC Mounting SMD
Driver Case Style DSBGA
No. of Pins 25Pins
Operating Temperature Min -30°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Output Current 50mA
Output Voltage 40V

Alternative Descriptions

High-Efficiency LED Backlight Driver for Notebooks | Texas Instruments
LED Driver, LP8550TLE/NOPB | RS
Led Driver, Boost, 1.25Mhz, Dsbga-25 | Newark Electronics
LED DRIVER, BOOST, 1.25MHZ, DSBGA-25 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LP8550TLE/NOPB?

Additional datasheets, footprints and schematics for LP8550TLE/NOPB are listed on our Part Details page. You can also find images and similar parts to LP8550TLE/NOPB on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LP8550TLE/NOPB on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LP8550TLE/NOPB price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LP8550TLE/NOPB fall under?

The LP8550TLE/NOPB is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

You can view similar parts to LP8550TLE/NOPB when available in the Driver & Interface ICs range under the specifications section at the bottom of the details page.

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Is the LP8550TLE/NOPB RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for LP8550TLE/NOPB have stock available?

Authorised distributors including Texas Instruments, RS, Newark Electronics, element14 and Farnell have stock available or on a lead time for LP8550TLE/NOPB.

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