Options for Price Comparison
Distributor Statistics for LP8861Q1EVM
Total in Stock: -
Lowest MOQ: -
Average Price: - per unit
Stocking Distributors: -
Loading...
Loading Results for LP8861Q1EVM
Details for LP8861Q1EVM by Texas Instruments
Education Maker & Hobbyist Electronics > Development Boards & Evaluation Kits > Special Application Development Kits
EVAL BOARD LP8861-Q1 LED DRIVER
LP8861Q1EVM image

LP8861Q1EVM by Texas Instruments

EVAL BOARD LP8861-Q1 LED DRIVER
Features
AECQ100 Qualified With the Following Results: u2013 Device Temperature Grade 1: u201340u00b0C to +125u00b0C Ambient Operating Temperature
Extensive Fault Detection and Tolerance Features u2013 Fault Output u2013 Input Voltage OVP, UVLO, and OCP u2013 Open and Shorted LED Fault Detection u2013 Automatic LED Current Reduction With External Temperature Sensor u2013 Thermal Shutdown
Four High-Precision Current Sinks u2013 Current Matching 1% (typical) u2013 LED String Current up to 100 mA/Channel u2013 Dimming Ratio 10 000:1 at 200 Hz
Input Voltage Operating Range 4.5 V to 40 V
Integrated Boost/SEPIC for LED String Power u2013 Output Voltage up to 45 V u2013 Switching Frequency 300 kHz to 2.2 MHz u2013 Boost/SEPIC Synchronization Input u2013 Spread Spectrum
Minimum Number of External Components
Power-Line FET Control for Inrush Current Protection and Standby Energy Saving
Qualified for Automotive Applications
Part Information
LP8861Q1EVM image
RoHS Compliant
Description
The LP8861-Q1 is an automotive high-efficiency, lowEMI, easy-to-use LED driver with integrated boost/SEPIC converter. It has four high-precision current sinks that can provide high dimming ratio brightness control with a PWM input signal. The boost/SEPIC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. Boost/SEPIC controller supports spread spectrum for switching frequency and an external synchronization with dedicated pin. The high switching frequency allows the LP8861-Q1 to avoid disturbance for AM radio band. The LP8861-Q1 has option to drive an external pFET to disconnect the input supply from the system in the event of a fault and reduce inrush current and standby power consumption. The device has ability to reduce LED current based on temperature measured with external NTC sensor to protect LED from overheating and extend LED life time. The input voltage range for the LP8861-Q1 is from 4.5 V to 40 V to support automotive stop/start and load dump condition. The device supports PWM brightness dimming ratio 10 000:1 for input PWM frequency 200 Hz. The LP8861-Q1 integrates extensive fault detection and protection features.
Specifications
Device Topology:
Boost SEPIC
No. of Outputs:
4Outputs
Output Current:
100mA
Output Voltage:
45V
Input Voltage Min:
4.5V
Input Voltage Max:
40V
Core Chip:
LP8861-Q1
Dimming Control Type:
PWM
Kit Contents:
Eval Board LP8861-Q1
Product Range:
-
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
LP8861-Q1 4-Channel LED Driver Evaluation Module Avnet America