component
ETA9697E8A
Public Made by Adomby adom
etasolution DC-DC Converters, ESOP-8. 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
markdownETA9697E8A
etasolution · DC-DC Converters · ESOP-8
ETA9697E8A from etasolution, in a ESOP-8. 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 | ISET | passive | Programs and monitors the charge current and shuts down the charger; it is held at 1V in constant-current mode, with the charge current set by a 1% resistor Rset from ISET to GND, and disconnecting the resistor from ground puts the charger in shutdown. |
| 2 | VIN | power_in | Input supply voltage with 16V input standoff rating (absolute maximum -0.3V to 16V), to be bypassed with a 10µF ceramic capacitor to GND. |
| 3 | BAT | bidirectional | Connected to the battery positive terminal (absolute maximum -0.3V to 16V), to be bypassed with a 10µF ceramic capacitor to GND. |
| 4 | SW | passive | Inductor connection between SW and the regulator output, with absolute maximum voltage of 6.5V; the datasheet cites inductance as low as 2.2µH at 1.4MHz switching. |
| 5 | 5VOUT | power_out | 5V boost converter output, to be bypassed with a 4.7µF or larger ceramic capacitor placed close between this pin and GND (absolute maximum 6.5V). |
| 6 | ENBST | input | Enable pin for the boost converter: drive high to enable and low to disable, with a high level of at least 1.2V and a low level of at most 0.4V at VOUT=5V. |
| 7 | STAT | output | Open-drain charge status output that pulls low during charging and becomes high-impedance when the charge cycle is complete (absolute maximum 6.5V). |
| 8 | NTC | input | Battery temperature monitoring input that sets the valid charging temperature range, with cold suspend at 80% VIN and hot suspend at 45% VIN; tying it to GND disables the temperature sensing. |
| 9 | GND | power_in | Ground reference for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN, BAT Voltage | -0.3 | 16 | V | 2 | |||
| SW, ISET, NTC, STAT, ENBST, 5VOUT Voltage | -0.3 | 6.5 | V | 2 | |||
| Operating Temperature Range | -40 | 85 | °C | 2 | |||
| Storage Temperature Range | -55 | 150 | °C | 2 | |||
| ESD HBM (Human Body Mode) | 2 | KV | Human Body Mode | 2 | |||
| Input Over-Voltage Protection Voltage | 6.5 | 7 | 7.4 | V | VIN rising, hys=0.3V | 2 | |
| Input Voltage Range for Charging | 4.25 | 6 | V | 2 | |||
| Input Supply Current, Charge Mode | 300 | 2000 | μA | Charge Mode | 2 | ||
| Input Supply Current, Standby Mode | 65 | 100 | μA | Charge Terminated | 2 | ||
| Input Supply Current, Shutdown Mode | 25 | 50 | μA | ISET Not Connected, EN=0, VIN<VBAT, or VIN<VULO | 2 | ||
| Regulated Output (Float) Voltage | 4.16 | 4.2 | 4.24 | V | Rset = 10K, 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 | |
| Trickle Charge Current | 20 | 50 | 110 | mA | VBAT < VTRIKL, Rset = 2K | 2 | |
| Trickle Charge Threshold Voltage | 2.75 | 2.93 | 3.1 | V | VBAT Rising | 2 | |
| Trickle Charge Hysteresis Voltage | 100 | 130 | 165 | mV | 2 | ||
| VIN Under-voltage Lockout Threshold | 3.05 | 3.35 | 3.6 | V | From VIN Low to High | 2 | |
| VIN Under-voltage Lockout Hysteresis | 0.4 | 0.55 | 0.65 | V | 2 | ||
| VIN-VBAT Lockout Threshold Voltage | 50 | 100 | 140 | mV | VIN from Low to High | 3 | |
| VIN-VBAT Lockout Threshold Voltage | 5 | 30 | mV | VIN from High to Low | 3 | ||
| C/10 Termination Current Threshold | 0.085 | 0.1 | 0.115 | mA/mA | 3 | ||
| STAT Pin Output Low Voltage | 0.35 | 0.6 | V | I_STAT= 5mA | 3 | ||
| Recharge BAT Threshold Voltage | 90 | 120 | 150 | mV | VFLOAT - VRECHRG | 3 | |
| Recharge Comparator Filter Time | 400 | 1000 | 2500 | μs | VBAT High to Low | 3 | |
| Termination Comparator Filter Time | 400 | 1000 | 2500 | μs | IBAT Falling Below ICHG/10 | 3 | |
| NTC Threshold, Cold Charger Suspended | 80 | 83 | % VIN | 3 | |||
| NTC Threshold, Hot Charger Suspended | 42 | 45 | % VIN | 3 | |||
| NTC Input Leakage | 0 | 1 | μA | 3 | |||
| Quiescent Current at BAT | 2 | 5 | μA | VENBST=IN, Vbat=4V | 3 | ||
| BAT Operation Voltage After Start-up | 1 | 4.5 | V | 3 | |||
| Output Voltage at 5V | 4.85 | 5 | 5.15 | V | 3 | ||
| ENBST Input Current | -1 | 0 | 1 | μA | VEN=5V or 0V | 4 | |
| Input Standoff Voltage | 16 | V | 2 | ||||
| ISET Pin Voltage | 1 | V | Current Mode, VBAT=4V | 3 | |||
| STAT Pin Weak Pull-Down Current | 0.1 | μA | V_STAT = 5V | 3 | |||
| Junction Temperature in Constant Temperature Mode | 120 | °C | 3 | ||||
| Power FET ON Resistance (Between VCC and BAT) | 0.5 | ohm | 3 | ||||
| Soft-Start Time | 100 | μs | IBAT = 0 to IBAT =1000V/RSET | 3 | |||
| ISET Pin Pull-Up Current | 1 | μA | 3 | ||||
| NTC Threshold Hysteresis | 2 | % VIN | 3 | ||||
| VBAT Startup Voltage | 0.8 | V | IOUT=1mA | 3 | |||
| Shutdown Supply Current at ENBST | 0.5 | μA | VENBST =GND | 3 | |||
| Switching Frequency | 1.4 | MHz | 3 | ||||
| NMOS Switch On Resistance | 220 | mΩ | ISW=100mA | 3 | |||
| PMOS Switch On Resistance | 160 | mΩ | ISW=100mA | 3 | |||
| SW Leakage Current | 10 | μA | VOUT=5.2V, VEN=GND, VSW=5.2V or VSW= 0V | 3 | |||
| NMOS Switch Current Limit | 1 | A | 3 | ||||
| Start-up Current Limit | 1 | A | 3 | ||||
| Short Circuit Hiccup time ON | 1.3 | ms | 3 | ||||
| Short Circuit Hiccup time OFF | 33 | ms | 3 | ||||
| ENBST High Voltage | 1.2 | V | VOUT=5V | 4 | |||
| ENBST low Voltage | 0.4 | V | VOUT=5V | 4 | |||
| Thermal Shutdown | 160 | °C | Rising, Hysteresis=25°C | 4 | |||
| Thermal Resistance θJA (ESOP8) | θJA | 50 | °C/W | ESOP8 | 2 | ||
| Thermal Resistance θJC (ESOP8) | θJC | 10 | °C/W | ESOP8 | 2 |
CAD (KiCad official)
- Symbol:
ETA9697E8A - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
eta9697e8a-etched.step/eta9697e8a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eta9697e8a.step/eta9697e8a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: etasolution datasheet (7 pp, sha256
7fdbc43450033b2f, retrieved 2026-10-14, 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).