component
ETA6986F3W
Public Made by Adomby adom
etasolution Battery Management, QFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 17d ago |
| viewers | 17d ago |
| eta6986f3w-etched.glb | 17d ago |
| eta6986f3w-etched.step | 17d ago |
| eta6986f3w-hero.glb | 17d ago |
| eta6986f3w-hero.overlay.json | 17d ago |
| eta6986f3w.glb | 17d ago |
| eta6986f3w.kicad_mod | 17d ago |
| eta6986f3w.kicad_sym | 17d ago |
| eta6986f3w.lbr | 17d ago |
| eta6986f3w.step | 17d ago |
| package.json | 17d ago |
| page.json | 17d ago |
| README.md | 17d ago |
ETA6986F3W
etasolution · Battery Management · QFN-20-EP(3x3)
ETA6986F3W from etasolution, in a QFN-20-EP(3x3). 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 | STAT | output | Charging status pin that is pulled low while a charge is in progress and goes high-impedance when charging finishes. |
| 2 | VTERM | input | Multi-function pin: below 0.2V in charge mode sets charge termination at 4.2V, floating (internally set to 0.3V) sets 4.35V, and with VIN absent a high level enables boost mode (logic input high 1.2V, low 0.4V). |
| 3 | IN | power_in | Input OVP sense pin, to be bypassed with a 10uF capacitor to ground; IN absolute maximum voltage is 20V. |
| 4 | INSNS | input | Input sense pin internally clamped to 6.4V, with a resistor connected from INSNS to IN and a 1uF capacitor to analog ground. |
| 5 | CP | passive | Charge pump capacitor positive terminal. |
| 6 | CN | passive | Charge pump capacitor negative terminal. |
| 7 | INGT | output | Gate driver pin that controls the external NMOS power path; INGT absolute maximum voltage is 20V. |
| 8 | AGND | power_in | Analog ground pin. |
| 9 | OUT | power_out | USB 5V output during boost and charging input pin during charging, to be bypassed with 2x22uF MLCC caps placed as close as possible to the pin and PGND; OUT absolute maximum voltage is 6V. |
| 10 | SW | passive | Switching pin; connect an inductor between this pin and BATT. |
| 11 | PGND | power_in | Power ground pin. |
| 12 | PGND | power_in | Power ground pin. |
| 13 | PGND | power_in | Power ground pin. |
| 14 | BATS | input | Battery voltage sense pin, to be connected to the battery positive terminal with a separate sensing wire to avoid voltage drop for accurate battery CV charging. |
| 15 | IOLIM | passive | Sets the output current limit in boost mode; connect a resistor (Rlim) and a 470pF capacitor in parallel from this pin to analog ground. |
| 16 | SW | passive | Switching pin; connect an inductor between this pin and BATT. |
| 17 | OUT | power_out | USB 5V output during boost and charging input pin during charging, to be bypassed with 2x22uF MLCC caps placed as close as possible to the pin and PGND; OUT absolute maximum voltage is 6V. |
| 18 | NTC | input | Battery temperature monitoring input that sets the valid temperature operating range for both battery charging and discharging. |
| 19 | LDO1V | power_out | 1V LDO output that sets up the voltage reference for the NTC resistor network, to be bypassed with a 22pF capacitor to analog ground. |
| 20 | ISET | passive | Buck charging current setting pin; a resistor connected between this pin and analog ground sets the charge current level. |
| 21 | OUT | power_out | Listed in the datasheet pin table as OUT (same function as pins 9 and 17), though the package is a 20-lead QFN. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | QFN-20-EP(3x3) |
| Category | Power Management (PMIC) |
| Pins | 21 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| IN Range | 4.5 | 5.5 | V | 2 | |||
| Battery CV Voltage (RVTERM=50K) | 4.16 | 4.2 | 4.24 | V | RVTERM=50K, IBAT=0mA, default | 2 | |
| Battery CV Voltage (RVTERM=open) | 4.3 | 4.35 | 4.4 | V | RVTERM=open, IBAT=0mA, default | 2 | |
| Output Voltage Range | 5 | 5.05 | 5.1 | V | Boost mode | 3 | |
| Switching Frequency | 0.8 | 1 | 1.2 | MHz | VBATT<4.4V | 3 | |
| Operating Temperature Range | -40 | 85 | ° C | 2 | |||
| Storage Temperature Range | -55 | 150 | ° C | 2 | |||
| OUT Voltage | -0.3 | 6 | V | 2 | |||
| IN, INGT Voltage | -0.3 | 20 | V | 2 | |||
| ESD HBM (Human Body Model) | 2 | KV | 2 | ||||
| ESD MM (Machine Model) | 200 | V | 2 | ||||
| NTC Input Leakage | 0 | 5 | μA | 3 | |||
| Thermal Resistance Junction-to-Case (θJC) | θJC | 2 | oC/W | QFN3x3-20 | 2 | ||
| Thermal Resistance Junction-to-Ambient (θJA) | θJA | 30 | oC/W | QFN3x3-20 | 2 | ||
| IN Standoff Voltage | 20 | V | 2 | ||||
| IN UVLO Voltage | 4.5 | V | Rising, Hys=500mV | 2 | |||
| PUMP Hiccup Threshold Voltage | 300 | mV | Falling, Vin-Vout<300mV; Rising, Hys=50mV | 2 | |||
| PUMP Hiccup On Time | 7 | mS | 2 | ||||
| PUMP Hiccup Off Time | 200 | mS | 2 | ||||
| PUMP Frequency | 500 | KHZ | 2 | ||||
| PUMP Voltage Vingt-Vout | Vingt-Vout | 3.5 | V | 2 | |||
| INSNS Clamp Voltage | 6.4 | V | 2 | ||||
| INSNS OVP Voltage | 6 | V | Hys=300mV | 2 | |||
| IN Operating Current as BUCK (switching) | 5 | mA | Switcher Enable, Switching | 2 | |||
| IN Operating Current as BUCK (not switching) | 500 | μA | Switcher Enable, No Switching | 2 | |||
| Charger Restart Threshold From DONE to Fast Charge | -150 | mV | 2 | ||||
| Battery Pre-Condition Voltage | 3 | V | VBAT Rising, Hys=200mV | 2 | |||
| Pre-Condition Charge Current | 200 | mA | 3 | ||||
| Fast Charge Current | 3 | A | RISET=62KΩ | 3 | |||
| Charge Termination Current | 200 | mA | RVICHRG=100K, CVICHRG=100pF | 3 | |||
| Charge Termination Blanking Time | 12 | S | 3 | ||||
| BATT Ok Threshold | 3.2 | V | Rising, HYS=0.5 V | 3 | |||
| Quiescent Current at BATT Boost On | 100 | μA | 3 | ||||
| Shutdown Supply Current at BATT Idle Mode | 30 | μA | 3 | ||||
| Iout Current Limit | 3.5 | A | 3 | ||||
| Maximum Duty Cycle | 90 | % | 3 | ||||
| Highside PMOS Rdson | 45 | mΩ | ISW=500mA | 3 | |||
| Lowside NMOS Rdson | 40 | mΩ | ISW=500mA | 3 | |||
| Short Circuit Hiccup Current | 4 | A | 3 | ||||
| Short Circuit Hiccup On Time | 25 | ms | 3 | ||||
| Short Circuit Hiccup Off Time | 750 | ms | 3 | ||||
| Vhold Vout start to reduce charging current | Vhold | 4.65 | V | 3 | |||
| ISET Voltage | 0.8 | V | 3 | ||||
| NTC Threshold, Cold (Charger Suspended) | 52 | %ldo1V | 3 | ||||
| NTC Threshold, Hot (Charger Suspended) | 13 | %ldo1V | 3 | ||||
| NTC Threshold Hysteresis | 2 | %ldo1V | 3 | ||||
| Logic Input High (VTERM for Boost Enabling) | 1.2 | V | 3 | ||||
| Logic Input Low (VTERM for Boost Enabling) | 0.4 | V | 3 | ||||
| Charging Thermal Regulation Threshold | 85 | oC | 3 | ||||
| Thermal Shutdown | 160 | oC | Rising, Hys=30oC | 3 |
CAD (KiCad official)
- Symbol:
ETA6986F3W - Footprint:
Package_DFN_QFN:UQFN-20-1EP_3x3mm_P0.4mm_EP1.85x1.85mm - 3D model: QFN-20-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
eta6986f3w-etched.step/eta6986f3w-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eta6986f3w.step/eta6986f3w.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: etasolution datasheet (7 pp, sha256
5773051aebdbb45a, retrieved 2026-10-18, tier: lcsc) - 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).