LP8860AQVFPRQ1 Clock Timer ICS LDO LED Lighting Drivers Auto Catalog Lw-EMI Hi-Perf 4Ch LED Drvr
timer ic chip
,time delay ic chip
LP8860AQVFPRQ1 Clock Timer ICS LDO LED Lighting Drivers Auto Catalog Lw-EMI Hi-Perf 4Ch LED Drvr
1 Features
- Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
-
Input Voltage Operating Range 3 V to 48 V
-
Four High-Precision Current Sinks
-
– Current Matching 0.5% (typical)
-
– LED String Current up to 150 mA per Channel
-
– Dimming Ratio > 13 000:1 With External PWM Brightness Control
-
– 16-bit Dimming Control with SPI or I2C
-
– Supports Display Mode (Global Dimming) and Cluster Mode (Independent Dimming)
-
-
Hybrid PWM and Current Dimming for Higher LED Drive Optical Efficiency
-
Synchronization for LED PWM Frequency
-
Boost Controller With Programmable Switching Frequency 100 kHz to 2.2 MHz and Spread- Spectrum Option for Lower EMI
-
Boost Synchronization Input
-
Power-Line FET Control for Inrush Current Protection and Standby Energy Saving
-
Automatic LED Current Reduction With External Temperature Sensor
2 Applications
• Backlight for:
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– Automotive Infotainment
-
– Automotive Instrument Clusters
-
– Smart Mirrors
-
– Heads-Up Displays (HUD)
-
– Central Information Displays (CID)
-
– Audio-Video Navigation (AVN)
3 Description
The LP8860-Q1 is an automotive high-efficiency LED driver with boost controller. It has 4 high-precision current sinks that can be controlled by a PWM input signal, an SPI or I2C master, or both.
The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8860-Q1 to avoid disturbance for AM radio band.
The LP8860-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency. Phase-shift PWM reduces audible noise and output ripple.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
LP8860-Q1 |
HLQFP (32) |
7.00 mm × 7.00 mm |
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