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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Part number | Order | Topology | Channels (#) | Vin (Min) (V) | Vin (Max) (V) | Vout (Min) (V) | Vout (Max) (V) | Iout (Max) (A) | Iq (Typ) (mA) | LED current per channel (mA) | Switching frequency (Max) (kHz) | Operating temperature range (C) | Features | Applications | Package Group | Package size: mm2:W x L (PKG) | Rating |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
LP8867-Q1 |
|
Boost with Current Sink | 4 | 4.5 | 40 | 6 | 45 | 0.12 | 4.5 | 0.12 | 2200 | -40 to 125 |
Enable/Shutdown
Fault Detection Fault Diagnostic Integrated Switch Power-Line FET Precision Dimming Control Spread Spectrum Thermal Shutdown |
Backlight | HTSSOP | 20 | 20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20) | Automotive |
LP8860-Q1 |
|
Boost Controller | 4 | 3 | 48 | 2 | 48 | 0.6 | 2.5 | 150 | 2200 | -40 to 125 |
Adjustable Switch Frequency
Boost Sync Fault Diagnostic Hybrid Dimming/Phase Shift I2C Control Spread Spectrum |
Backlight
Dome Foot Well |
HLQFP | 32 | 32HLQFP: 81 mm2: 9 x 9 (HLQFP | 32) | Automotive |
LP8861-Q1 |
|
Boost
Sepic |
4 | 4.5 | 40 | 7 | 40 | 0.4 | 5 | 100 | 2200 | -40 to 125 |
Adjustable Switch Frequency
Boost Sync Fault Detection Power-Line FET Sepic Sync Spread Spectrum Temperature Compensation |
Backlight
Dome Foot Well |
HTSSOP | 20 | 20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20) | Automotive |
LP8862-Q1 |
|
Boost
Sepic |
2 | 4.5 | 40 | 6 | 45 | 0.16 | 5 | 160 | 2200 | -40 to 125 |
Adjustable Switch Frequency
Boost Sync Fault Detection Power-Line FET Sepic Sync Spread Spectrum |
Backlight | HTSSOP | 20 | 20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20) | Automotive |
LP8863-Q1 |
|
Boost Controller
Sepic Controller |
6 | 3 | 48 | 7 | 48 | 0.9 | 15 | 150 | 2200 | -40 to 125 |
Adjustable Switch Frequency
Boost Sync Enable/Shutdown Fault Diagnostic Hybrid Dimming/Phase Shift I2C Control Power-Line FET Precision Dimming Control Soft Start Spread Spectrum |
Backlight | HTSSOP | 38 |