Design tool
LP887X-LP889X-DESIGN — Design resources for LP887x/LP889x family
Design resources for LP887x/LP889x family
Data sheet
LP8873-Q1
- AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C, TA
- Input voltage operating range 3V to 48V
- Four high-precision current sinks
- Up to 150mA DC current for each channel
- Current matching 1% (typical)
- High dimming ratio 32 000:1 using 152Hz LED output PWM frequency
- Up to 16-bit LED PWM dimming resolution with I2C, or PWM input
- Support independent PWM dimming control for each channel
- Auto-phase shift PWM dimming and direct PWM dimming
- Hybrid dimming and 12-bit analog dimming
- Up to 48V VOUT boost or SEPIC DC/DC converter
- Integrated 5.4A switching FET
- Support boost/sepic operation
- Higher efficiency with 60mΩ RDSON and fast switching
- Boost selectable dual random spread spectrum for reduced EMI
- Adjustable soft start of converter
- Boost sync input to set boost switching frequency from an external clock
- Output voltage automatically discharged when boost is disabled
- Extensive fault detection and protection
- Up to 1MHz I2C control interface with CRC check
- Bit-integrity (CRC) error detection on internal configuration registers and non-volatile memory (NVM)
- Input voltage OVP, UVLO and OCP
- Boost overcurrent and overvoltage protection
- LED open, short and short to ground fault detection
- Thermal warning and thermal shutdown
- Small solution size and low cost
- Dynamically programmable wide switching frequency from 100kHz to 2.2MHz
- Available in 4mm × 4mm HotRod™ QFN package with wettable flank
The LP8873-Q1 is an automotive high-efficiency, low-EMI and easy-to-use LED driver with integrated DC-DC power switch. The DC-DC converter supports both boost and SEPIC topology configuration. The four high-precision current sinks support PWM 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 converter 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.
The LP8873-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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Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LP8873-Q1 Automotive Display LED-Backlight Driver with Four 150 mA Channels datasheet | PDF | HTML | 20 Jul 2025 |
Design & development
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Evaluation board
LP8870Q1EVM — LP8870-Q1 evaluation module
The Texas Instruments LP8870-Q1 evaluation module (EVM) helps designers to evaluate the operation and performance of the LP8870-Q1 device. This document includes a hardware setup instructions, software instructions, a complete schematic diagram, printed-circuit board (PCB) layout, and bill of (...)
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
Ordering & quality
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