LP8866-Q1

Name: LP8866-Q1
Brand: TI
SKU: LP8866-Q1
Price: 1.584 USD

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LED-Hintergrundbeleuchtungstreiber für Fahrzeuganwendungen mit sechs 200-mA-Kanälen

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Datenblatt

document-pdfAcrobat LP8866-Q1 Automotive Display LED-backlight with Six 200-mA Channels datasheet (Rev. B) (Englisch)

LP8866-Q1

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Datenblatt

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Produktdetails

Number of channels

6

Topology

Boost with Current Sink, SEPIC Controller

Rating

Automotive

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)

1.2

Iq (typ) (mA)

20

Switching frequency (max) (kHz)

2200

Features

Adjustable Switch Frequency, Boost Sync, Current Derating, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal shutdown

Number of channels

6

Topology

Boost with Current Sink, SEPIC Controller

Rating

Automotive

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)

1.2

Iq (typ) (mA)

20

Switching frequency (max) (kHz)

2200

Features

Adjustable Switch Frequency, Boost Sync, Current Derating, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal shutdown

HTSSOP (DCP)

38

62.08 mm² 9.7 x 6.4

VQFN (RHB)

32

25 mm² 5 x 5

AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, T_A
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Input voltage operating range 3 V to 48 V
Six high-precision current sinks
- Up to 200-mA DC current for each current sink
- Current matching 1% (typical)
- Dimming ratio 32 000:1 using 152-Hz LED output PWM frequency
- Up to 16-bit LED dimming resolution with I2C, or PWM input
- 8 Configurable LED strings configuration
Auto-phase shift PWM dimming
12-bit Analog dimming
Up to 48-V V_OUT boost or SEPIC DC/DC controller
- Switching frequency 100 kHz to 2.2 MHz
- Boost spread spectrum for reduced EMI
- Boost sync input to set boost switching frequency from an external clock
- Output voltage automatically discharged when boost is disabled
Extensive fault diagnostics

AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, T_A
- Device HBM ESD classification level 2
- Device CDM ESD classification level C4B
Input voltage operating range 3 V to 48 V
Six high-precision current sinks
- Up to 200-mA DC current for each current sink
- Current matching 1% (typical)
- Dimming ratio 32 000:1 using 152-Hz LED output PWM frequency
- Up to 16-bit LED dimming resolution with I2C, or PWM input
- 8 Configurable LED strings configuration
Auto-phase shift PWM dimming
12-bit Analog dimming
Up to 48-V V_OUT boost or SEPIC DC/DC controller
- Switching frequency 100 kHz to 2.2 MHz
- Boost spread spectrum for reduced EMI
- Boost sync input to set boost switching frequency from an external clock
- Output voltage automatically discharged when boost is disabled
Extensive fault diagnostics

The LP8866-Q1 is an automotive high-efficiency LED driver with boost controller. The Six 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 LP8866-Q1 to avoid disturbance for AM radio band.

The LP8866-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 LP8866-Q1 is an automotive high-efficiency LED driver with boost controller. The Six 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 LP8866-Q1 to avoid disturbance for AM radio band.

The LP8866-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

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Alle anzeigen 7

	Typ	Titel		Datum
*	Data sheet	LP8866-Q1 Automotive Display LED-backlight with Six 200-mA Channels datasheet (Rev. B)		16 Okt 2020
	Application note	LP886x-Q1 Feedback Resistor Design Considerations	PDF \| HTML	12 Mai 2021
	Certificate	LP8866EVM EU Declaration of Conformity (DoC)		01 Sep 2020
	Application note	LP8864-Q1, LP8864S-Q1, LP8866-Q1, and LP8866S-Q1 Diagnostic Description and Faul	PDF \| HTML	16 Jul 2020
	Technical article	Overcoming challenges for backlight LED drivers in automotive display solutions	PDF \| HTML	16 Jul 2020
	EVM User's guide	LP8866EVM User's Guide (Rev. A)		30 Jun 2020
	Application note	LP8866-Q1 Typical Design Guidelines to Achieve CISPR25 Class 5 Conducted and Rad	PDF \| HTML	29 Jun 2020

Design und Entwicklung

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Evaluierungsplatine

LP8866EVM — LP8866-Q1-Evaluierungsmodul für 6-kanaligen LED-Treiber für die Automobilindustrie

The LP8866EVM helps designers to evaluate the characteristics, operation, and performance of the LP8866(S)-Q1 device, a 6-channel high-efficiency LED driver for automotive display LED backlighting. The LP8866(S)-Q1 device integrates a boost or SEPIC controller and six high-precision current sinks. (...)

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Gehäuse	Pins	Herunterladen
HTSSOP (DCP)	38	Optionen anzeigen
VQFN (RHB)	32	Optionen anzeigen

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LP8866-Q1

LED-Hintergrundbeleuchtungstreiber für Fahrzeuganwendungen mit sechs 200-mA-Kanälen

LP8866-Q1

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