component
LP8864QRHBRQ1
Public Made by Adomby adom
Texas Instruments LED Drivers, VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLP8864QRHBRQ1
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp8864qrhbrq1.step/lp8864qrhbrq1.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).