component
BQ25306RTER
Public Made by Adomby adom
Texas Instruments Battery Management, WQFN-16(3x3). 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
markdownBQ25306RTER
Texas Instruments · Battery Management · WQFN-16(3x3)
BQ25306RTER from Texas Instruments, in a WQFN-16(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VBUS | power_in | Charger input voltage source with 4.1V to 17V operating range and 28V absolute maximum rating |
| 2 | REGN | power_out | Low-side FET driver positive supply output with 4.2V to 5.4V regulated voltage |
| 3 | STAT | output | Charge status indication open-drain output reporting charging (LOW), complete (OPEN), or fault conditions (BLINKING) |
| 4 | ICHG | input | Charge current program input regulated at 993mV to 1003mV where charging current is set as ICHG=KICHG/RICHG |
| 5 | POL | input | EN pin polarity selection input; keep floating for standalone charger operation |
| 6 | EN | input | Device enable/disable input with input thresholds of 0.40V low and 1.3V high |
| 7 | TS | input | Battery temperature voltage input for NTC thermistor connection to enable cold/hot temperature monitoring and charging suspension |
| 8 | FB_GND | input | Battery voltage feedback ground input for resistor divider low-side connection with high impedance when charger disabled |
| 9 | FB | input | Battery voltage feedback input where charging voltage is programmed as VBATREG=1.1(1+R1/R2) with 1.094V to 1.104V reference |
| 10 | BAT | input | Battery voltage sensing input connected to positive terminal of battery pack with 3.4V to 9.0V programmable range |
| 11 | GND | power_in | Ground reference connected directly to thermal pad for electrical and heat dissipation performance |
| 12 | GND | power_in | Ground reference for single-point analog and power ground connection near IC |
| 13 | SW | passive | Switching node connected to output inductor with internal connection to HSFET source and LSFET drain |
| 14 | SW | passive | Switching node connected to output inductor with internal connection to HSFET source and LSFET drain |
| 15 | BTST | passive | High-side FET driver supply internally connected to bootstrap diode cathode with 2.7V to 3.3V refresh threshold |
| 16 | PMID | passive | Intermediate power node connected to RBFET drain and HSFET drain with 10µF capacitor to GND recommended |
| 17 | Thermal Pad | power_in | Ground reference and exposed thermal pad for low thermal-impedance path from die to PCB via vias |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WQFN-16(3x3) |
| Category | Power Management (PMIC) |
| Pins | 17 |
CAD (KiCad official)
- Symbol:
BQ25306RTER - Footprint:
Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm - 3D model: WQFN-16(3x3) (KiCad packages3D, STEP)
- 3D model files:
bq25306rter-etched.step/bq25306rter-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bq25306rter.step/bq25306rter.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (42 pp, sha256
8009786e6366720f, retrieved 2026-09-22, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).