LP8861QPWPRQ1
ActiveLOW-EMI HIGH-PERFORMANCE 4-CHANNEL LED DRIVER FOR AUTOMOTIVE LIGHTING
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LP8861QPWPRQ1
ActiveLOW-EMI HIGH-PERFORMANCE 4-CHANNEL LED DRIVER FOR AUTOMOTIVE LIGHTING
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Technical Specifications
Parameters and characteristics for this part
| Specification | LP8861QPWPRQ1 |
|---|---|
| Applications | Backlight |
| Current - Output / Channel | 100 mA |
| Dimming | PWM |
| Frequency [Max] | 2.2 MHz |
| Frequency [Min] | 300 kHz |
| Grade | Automotive |
| Internal Switch(s) | True |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-PowerTSSOP |
| Package / Case | 0.173 in |
| Package / Case [custom] | 4.4 mm |
| Qualification | AEC-Q100 |
| Supplier Device Package | 20-HTSSOP |
| Topology | SEPIC, Step-Up (Boost) |
| Type | DC DC Regulator |
| Voltage - Output | 45 V |
| Voltage - Supply (Max) [Max] | 40 V |
| Voltage - Supply (Min) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.95 | |
| 10 | $ 2.65 | |||
| 25 | $ 2.50 | |||
| 100 | $ 2.13 | |||
| 250 | $ 2.00 | |||
| 500 | $ 1.75 | |||
| 1000 | $ 1.45 | |||
| Digi-Reel® | 1 | $ 2.95 | ||
| 10 | $ 2.65 | |||
| 25 | $ 2.50 | |||
| 100 | $ 2.13 | |||
| 250 | $ 2.00 | |||
| 500 | $ 1.75 | |||
| 1000 | $ 1.45 | |||
| Tape & Reel (TR) | 2000 | $ 1.35 | ||
| 6000 | $ 1.30 | |||
| Texas Instruments | LARGE T&R | 1 | $ 2.00 | |
| 100 | $ 1.75 | |||
| 250 | $ 1.23 | |||
| 1000 | $ 0.99 | |||
Description
General part information
LP8861-Q1 Series
The LP8861-Q1 is an automotive high-efficiency, low-EMI, easy-to-use LED driver with integrated boost/SEPIC converter. It has four high-precision current sinks that can provide high dimming ratio brightness control with a PWM input signal.
The boost/SEPIC converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. The boost/SEPIC converter supports spread spectrum for switching frequency and an external synchronization with dedicated pin. A wide-range adjustable frequency allows the LP8861-Q1 to avoid disturbance for AM radio band.
The LP8861-Q1 has an option to drive an external p-FET to disconnect the input supply from the system in the event of a fault and reduce inrush current and standby power consumption. The device can reduce LED current based on temperature measured with external NTC sensor to protect LED from overheating and extend LED lifetime.
Documents
Technical documentation and resources
