LP8864 Series
Automotive display LED-backlight with four 150-mA channels
Manufacturer: Texas Instruments
Catalog(5 parts)
| Part | Topology | Applications | Voltage - Output▲▼ | Voltage - Output▲▼ | Package / Case | Number of Outputs▲▼ | Mounting Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Supplier Device Package | Voltage - Supply (Max)▲▼ | Current - Output / Channel▲▼ | Grade | Type | Internal Switch(s)▲▼ | Voltage - Supply (Min)▲▼ | Dimming | Qualification | Frequency▲▼ | Frequency▲▼ | Current - Output / Channel▲▼ | Voltage - Output▲▼ | Outputs and Type | Outputs and Type▲▼ | Features | Utilized IC / Part | Supplied Contents | Voltage - Input▲▼ | Voltage - Input▲▼ | Package / Case▲▼ | Package / Case▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LP8864QRHBRQ1LED Driver IC 4 Output DC DC Controller SEPIC, Step-Up (Boost) Analog, I2C, PWM Dimming 200mA 32-VQFN (5x5) | SEPIC, Step-Up (Boost) | Backlight | 0 V | 48 V | 32-VFQFN Exposed Pad | 4 ul | Surface Mount, Wettable Flank | -40 °C | 125 °C | 32-VQFN (5x5) | 5.5 V | 0.20000000298023224 A | Automotive | DC DC Controller | 3 V | Analog, I2C, PWM | AEC-Q100 | 100000 Hz | 2200000 Hz | ||||||||||||
Texas Instruments LP8864SQRHBRQ1LED Driver IC 4 Output DC DC Controller SEPIC, Step-Up (Boost) Analog, I2C, PWM Dimming 150mA 32-VQFN (5x5) | SEPIC, Step-Up (Boost) | Backlight | 0 V | 48 V | 32-VFQFN Exposed Pad | 4 ul | Surface Mount, Wettable Flank | -40 °C | 125 °C | 32-VQFN (5x5) | 5.5 V | Automotive | DC DC Controller | 3 V | Analog, I2C, PWM | AEC-Q100 | 100000 Hz | 2200000 Hz | 0.15000000596046448 A | ||||||||||||
0.20000000298023224 A | 48 V | Non-Isolated | 4 ul | Dimmable | LP8864-Q1 | Board(s), Cable(s) | 3 V | 48 V | |||||||||||||||||||||||
Texas Instruments LP8864QDCPRQ1LED Driver IC 4 Output DC DC Controller SEPIC, Step-Up (Boost) PWM Dimming 200mA 38-HTSSOP | SEPIC, Step-Up (Boost) | Backlight | 0 V | 48 V | 38-PowerTFSOP | 4 ul | Surface Mount | -40 °C | 125 °C | 38-HTSSOP | 48 V | 0.20000000298023224 A | Automotive | DC DC Controller | 3 V | PWM | AEC-Q100 | 100000 Hz | 2200000 Hz | 0.004399999976158142 m | 0.004394200164824724 m | ||||||||||
Texas Instruments LP8864SQDCPRQ1LED Driver IC 4 Output DC DC Controller SEPIC, Step-Up (Boost) PWM Dimming 150mA 38-HTSSOP | SEPIC, Step-Up (Boost) | Backlight | 0 V | 48 V | 38-PowerTFSOP | 4 ul | Surface Mount | -40 °C | 125 °C | 38-HTSSOP | 48 V | Automotive | DC DC Controller | 3 V | PWM | AEC-Q100 | 100000 Hz | 2200000 Hz | 0.15000000596046448 A | 0.004399999976158142 m | 0.004394200164824724 m |
Key Features
• AEC-Q100 qualified for automotive applications:Device temperature grade 1: –40°C to +125°C, TADevice HBM ESD classification level 2Device CDM ESD classification level C4BInput voltage operating range 3V to 48VFour high-precision current sinksUp to 150mA DC current for each current sinkCurrent matching 1% (typical)Dimming ratio 32 000:1 using 152Hz LED output PWM frequencyUp to 16-bit LED dimming resolution with I2C, or PWM input8 Configurable LED strings configurationAuto-phase shift PWM dimming12-bit analog dimmingUp to 48V VOUT boost or SEPIC DC/DC controllerSwitching frequency 100kHz to 2.2MHzBoost spread spectrum for reduced EMIBoost sync input to set boost switching frequency from an external clockOutput voltage automatically discharged when boost is disabledExtensive fault diagnosticsAEC-Q100 qualified for automotive applications:Device temperature grade 1: –40°C to +125°C, TADevice HBM ESD classification level 2Device CDM ESD classification level C4BInput voltage operating range 3V to 48VFour high-precision current sinksUp to 150mA DC current for each current sinkCurrent matching 1% (typical)Dimming ratio 32 000:1 using 152Hz LED output PWM frequencyUp to 16-bit LED dimming resolution with I2C, or PWM input8 Configurable LED strings configurationAuto-phase shift PWM dimming12-bit analog dimmingUp to 48V VOUT boost or SEPIC DC/DC controllerSwitching frequency 100kHz to 2.2MHzBoost spread spectrum for reduced EMIBoost sync input to set boost switching frequency from an external clockOutput voltage automatically discharged when boost is disabledExtensive fault diagnostics
Description
AI
The LP8864S-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 LP8864S-Q1 to avoid disturbance for AM radio band.
The LP8864S-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.
The LP8864S-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 LP8864S-Q1 to avoid disturbance for AM radio band.
The LP8864S-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.