component

LP8864QRHBRQ1

Public Made by Adom

by adom

Texas Instruments LED Drivers, VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LP8864QRHBRQ1

Texas Instruments · LED Drivers · VQFN-32-EP(5x5)

LP8864QRHBRQ1 from Texas Instruments, in a VQFN-32-EP(5x5). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 LED_GND power_in LED ground connection.
2 LED_GND power_in LED ground connection.
3 OUT4 passive LED current sink output; if unused tie to ground.
4 LED_GND power_in LED ground connection.
5 OUT3 passive LED current sink output; if unused tie to ground.
6 OUT2 passive LED current sink output; if unused tie to ground.
7 OUT1 passive LED current sink output; if unused tie to ground.
8 INT output Open-drain device fault interrupt output; a 10kΩ pullup resistor is recommended.
9 SDA bidirectional SDA for the I2C interface; a 10kΩ pullup resistor is recommended.
10 SCL input SCL for the I2C interface; a 10kΩ pullup resistor is recommended.
11 BST_SYNC input Boost synchronization input; when not used, connect to ground to disable spread spectrum or to VDD to enable spread spectrum.
12 PWM input PWM input for brightness control; tie to GND if unused.
13 SGND power_in Signal ground.
14 LED_SET passive LED string configuration through external resistor; do not leave floating.
15 PWM_FSET passive LED dimming frequency setup through external resistor; do not leave floating.
16 BST_FSET passive Boost switching frequency setup through external resistor; do not leave floating.
17 MODE passive Dimming mode setup through external resistor; do not leave floating.
18 UVLO input Input voltage sense for programming the input UVLO threshold through an external resistor to VIN.
19 VSENSE_P input Input voltage detection for OVP protection and positive input for input current sense.
20 VSENSE_N input Negative input for input current sense; tie to VSENSE_P if input current sense is not used.
21 SD output Open-drain power line FET control output; leave floating if unused.
22 VDD power_in Power supply input for internal analog and digital circuit; connect a 10μF capacitor between VDD and GND.
23 EN input Enable input.
24 C1N passive Negative input for charge pump flying capacitor; leave floating if feature not used.
25 C1P passive Positive input for charge pump flying capacitor; leave floating if feature not used.
26 CPUMP power_out Charge pump output; connect to VDD if charge pump is not used, and a 4.7µF decoupling capacitor is recommended.
27 GD output Gate driver output for external N-FET.
28 PGND power_in Power ground.
29 ISNS input Boost current sense pin.
30 ISNSGND power_in Current sense resistor GND.
31 ISET passive LED full-scale current setup through external resistor.
32 FB input Boost feedback input.
33 LED_GND power_in Exposed thermal pad (DAP); LED ground connection.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-32-EP(5x5)
Category LED Drivers
Pins 33

CAD (KiCad official)

  • Symbol: LP8864QRHBRQ1
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: lp8864qrhbrq1-etched.step / lp8864qrhbrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lp8864qrhbrq1.step / lp8864qrhbrq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (95 pp, sha256 60f17f195dd305c5, retrieved 2026-10-11, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF