component
ETA4054S2F
Public Made by Adomby adom
etasolution Battery Management, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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ETA4054S2F
etasolution · Battery Management · SOT23-5
ETA4054S2F from etasolution, in a SOT23-5. 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 | Open-drain charge status output that is pulled low while the battery is charging and becomes high-impedance after the charge cycle completes, with a STAT/STDBY output low voltage of 0.6V max at 5mA. |
| 2 | GND | power_in | Ground pin, which is connected to the ISET program resistor. |
| 3 | BAT | power_out | Charge current output that supplies the battery and regulates the final float voltage to 4.2V, set by an internal precision resistor divider; the pin is rated 16V standoff. |
| 4 | VIN | power_in | Positive input supply that needs to be bypassed with at least a 1μF capacitor, with an input supply range of 4.25V to 16V and a 20V absolute maximum. |
| 5 | ISET | passive | Charge-current program and monitor pin that is held at 1V in constant-current mode through a 1% resistor to GND; disconnecting the resistor puts the charger into shutdown and reconnecting it restarts a charge cycle. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | SOT23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Supply Voltage | 4.25 | 16 | V | 2 | |||
| Input Voltage Range for Charging | 4.25 | 6 | V | 2 | |||
| Input Supply Current | 300 | 2000 | μA | Charge Mode (Note 1) | 2 | ||
| Input Supply Current | 60 | 100 | μA | Standby Mode (Charge Terminated) | 2 | ||
| Input Supply Current | 25 | 50 | μA | Shutdown Mode (ISET Not Connected, VIN<VBAT, or VIN<VULO) | 2 | ||
| Regulated Output (Float) Voltage | 4.158 | 4.2 | 4.242 | V | IBAT = 40mA | 2 | |
| BAT Pin Current | 90 | 100 | 110 | mA | Rset = 10K, Current Mode | 2 | |
| BAT Pin Current | 432 | 480 | 528 | mA | Rset = 2K, Current Mode | 2 | |
| BAT Pin Current | 820 | 920 | 1020 | mA | Rset = 1K, Current Mode | 2 | |
| BAT Pin Current | 0 | -2 | -3 | μA | Standby Mode, VBAT = 4.2V | 2 | |
| BAT Pin Current | 0.25 | 0.35 | μA | Shutdown Mode, ISET Not Connected | 2 | ||
| Trickle Charge Current | 20 | 50 | 100 | mA | VBAT < VTRIKL, Rset = 2K | 2 | |
| Trickle Charge Threshold Voltage | 2.75 | 2.93 | 3.09 | V | VBAT Rising | 2 | |
| Trickle Charge Hysteresis Voltage | 100 | 130 | 165 | mV | 2 | ||
| VIN Undervoltage Lockout Threshold | 3.05 | 3.35 | 3.6 | V | From VIN Low to High | 2 | |
| VIN Undervoltage Lockout Hysteresis | 0.4 | 0.55 | 0.65 | V | 3 | ||
| Manual Shutdown Threshold Voltage | 1.1 | 1.2 | 1.3 | V | ISET Pin Rising | 3 | |
| Manual Shutdown Threshold Voltage | 0.8 | 1 | 1.13 | V | ISET Pin Falling | 3 | |
| VIN-VBAT Lockout Threshold Voltage | 70 | 100 | 140 | mV | VIN from Low to High | 3 | |
| VIN-VBAT Lockout Threshold Voltage | 10 | 30 | mV | VIN from High to Low | 3 | ||
| C/10 Termination Current Threshold | 0.085 | 0.1 | 0.115 | mA/mA | Note 2 | 3 | |
| ISET Pin Voltage | 0.93 | 1 | 1.07 | V | Current Mode, VBAT=4V | 3 | |
| STAT/STDBY Pin Output Low Voltage | 0.35 | 0.6 | V | I_STAT or I_STDBY= 5mA | 3 | ||
| Recharge BAT Threshold Voltage | VFLOAT - VRECHRG | 90 | 120 | 150 | mV | 3 | |
| Termination Comparator Filter Time | 400 | 1000 | 2500 | μs | IBAT Falling Below ICHG/10 | 3 | |
| VIN Voltage | -0.3 | 20 | V | 2 | |||
| BAT Voltage | -0.3 | 16 | V | 2 | |||
| All other pin Voltage | -0.3 | 6 | V | 2 | |||
| Operating Temperature Range | -40 | 85 | °C | 2 | |||
| Storage Temperature Range | -55 | 150 | °C | 2 | |||
| ESD HBM (Human Body Model) | 2 | KV | 2 | ||||
| Thermal Resistance θJC | θJC | 50 | °C/W | SOT23-5 | 2 |
CAD (KiCad official)
- Symbol:
ETA4054S2F - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT23-5 (KiCad packages3D, STEP)
- 3D model files:
eta4054s2f-etched.step/eta4054s2f-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eta4054s2f.step/eta4054s2f.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: etasolution datasheet (6 pp, sha256
1880c32024554c0d, 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).