Texas Instruments LP8864QDCPRQ1
- Part Number:
- LP8864QDCPRQ1
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6404456-LP8864QDCPRQ1
- Description:
- Automotive display LED-backlight driver with four 200-mA channels
- ECAD Model:
-
- Datasheet:
- lp8864-q1
- Number of channels4
- TopologyBoost with Current Sink
- RatingAutomotive
- Operating temperature range (°C)-40 to 125
- Vin (min) (V)3
- Vin (max) (V)48
- Vout (min) (V)0
- Vout (max) (V)48
- Iout (max) (A)0.8
- Iq (typ) (mA)20
- Switching frequency (max) (kHz)2200
- FeaturesAdjustable Switch Frequency
The LP8864-Q1 is an automotive high-efficiency LED driver with boost controller. The Four high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.
The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8864-Q1 to avoid disturbance for AM radio band.
The LP8864-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.
-
ImagePart NumberManufacturerNumber of channelsTopologyRatingOperating temperature range (°C)Vin (min) (V)Vin (max) (V)Vout (min) (V)Vout (max) (V)Iout (max) (A)Iq (typ) (mA)Switching frequency (max) (kHz)FeaturesView Compare
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LP8864QDCPRQ14Boost with Current SinkAutomotive-40 to 1253480480.8202200Adjustable Switch Frequency- -
6Boost with Current SinkAutomotive-40 to 1253480480.9202200Adjustable Switch Frequency
-
4Boost with Current SinkAutomotive-40 to 1253480480.6202200Adjustable Switch Frequency
-
4Boost with Current SinkAutomotive-40 to 1253480480.8202200Adjustable Switch Frequency
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