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Support BOM quotation New Original Integrated Circuit LP8867QPWPRQ1

short description:

The LP8867-Q1, LP8869-Q1 is an automotive highly-integrated, low-EMI, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability.

The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP886x-Q1 to avoid disturbance for sensitive frequency band.

The input voltage range for the LP886x-Q1 is from 4.5 V to 40 V to support automotive start-stop and load dump condition. The LP886x-Q1 integrates extensive fault detection features.


Product Detail

Product Tags

Product Attributes

TYPE DESCRIPTION

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Category Integrated Circuits (ICs)

PMIC

LED Drivers

 

 

 

Mfr Texas Instruments

 

Series Automotive, AEC-Q100

 

Package Tape & Reel (TR)

Cut Tape (CT)

Digi-Reel®

 

 

 

Product Status Active

 

Type DC DC Regulator

 

Topology SEPIC, Step-Up (Boost)

 

Internal Switch(s) Yes

 

Number of Outputs 3

 

Voltage - Supply (Min) 4.5V

 

Voltage - Supply (Max) 45V

 

Voltage - Output 6V ~ 45V

 

Current - Output / Channel 120mA

 

Frequency 300kHz ~ 2.2MHz

 

Dimming PWM

 

Applications Automotive, Backlight

 

Operating Temperature -40°C ~ 125°C (TA)

 

Mounting Type Surface Mount

 

Package / Case 20-PowerTSSOP (0.173", 4.40mm Width)

 

Supplier Device Package 20-HTSSOP

 

Base Product Number LP8867  
SPQ 2000PCS  

 

Features for the LP8867-Q1

  • AEC-Q100 Qualified for automotive applications:
    • Device temperature grade 1:
    • –40°C to +125°C, TA
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • 3-, 4-Channel 120-mA current sinks
    • High dimming ratio of 10 000:1 at 100 Hz
    • Current matching 1% (typical)
    • LED String current up to 120 mA per channel
    • Outputs can be combined externally for higher current per string
  • Integrated boost and SEPIC converter for LED string power
    • Input voltage operating range 4.5 V to 40 V
    • Output voltage up to 45 V
    • Integrated 3.3-A Switch FET
    • Switching frequency 300 kHz to 2.2 MHz
    • Switching synchronization input
    • Spread spectrum for lower EMI
  • Fault detection and protection
    • Fault output
    • Input voltage OVP, UVLO and OCP
    • Boost block SW OVP and output OVP
    • LED open and short fault detection
    • Power-Line FET control for battery bus protection
    • Automatic LED current reduction with external temperature sensor
    • Thermal shutdown

Description for the LP8867-Q1

The LP8867-Q1, LP8869-Q1 is an automotive highly-integrated, low-EMI, easy-to-use LED driver with DC-DC converter. The DC-DC converter supports both boost and SEPIC mode operation. The device has four or three high-precision current sinks that can be combined for higher current capability.

The DC-DC converter has adaptive output voltage control based on the LED forward voltages. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. For EMI reduction DC-DC supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP886x-Q1 to avoid disturbance for sensitive frequency band.

The input voltage range for the LP886x-Q1 is from 4.5 V to 40 V to support automotive start-stop and load dump condition. The LP886x-Q1 integrates extensive fault detection features.


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