component
CN3170
Public Made by Adomby adom
ShangHai Consonance Elec Battery Management, SOP-8-EP. 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
markdownCN3170
ShangHai Consonance Elec · Battery Management · SOP-8-EP
CN3170 from ShangHai Consonance Elec, in a SOP-8-EP. 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 | TEMP | input | Battery temperature sense input: a nominal 10 kΩ NTC to GND sets the pin voltage with the 30 µA pin current, charging pauses when TEMP is below 0.1 V or above 0.85 V, and a fixed 10 kΩ resistor to GND is used if temperature monitoring is not needed. |
| 2 | ISET | passive | Charge-current program and monitor pin: RISET from ISET to GND sets ICH = 1182V/RISET, the pin sits at 0.135 V in trickle and 1.205 V in constant-current mode, and a short to GND or an abnormally low RISET triggers overcurrent shutdown above 1.0-1.5 A. |
| 3 | GND | power_in | Power ground for the device. |
| 4 | VIN | power_in | Positive input supply, specified at 4.4 V to 6 V, that powers the internal circuits; the device enters sleep mode when VIN is within 10 mV of BAT and is undervoltage-locked-out below about 2.4-2.65 V. |
| 5 | BAT | power_out | Battery connection that delivers the charge current and constant-voltage charge (4.2 V default); sleep-mode and UVLO battery drain is below 3 µA, and a 1 µF to 10 µF ceramic capacitor from BAT to GND is required for stability. |
| 6 | DONE | output | Open-drain charge-complete indicator that is pulled low by an internal switch when charging ends and is high-impedance otherwise, with a 10 mA sink capability and 6 V maximum leakage rating. |
| 7 | CHRG | output | Open-drain charging-status indicator that is pulled low by an internal switch while charging is in progress and is high-impedance otherwise, with a 10 mA sink capability and 6 V maximum leakage rating. |
| 8 | FB | input | Battery-voltage sense input connected directly at the battery positive terminal to regulate the constant-voltage charge to 4.2 V ±1%, with a resistor from FB to BAT raising the float voltage per VREG = 4.2 + 3.707×10⁻⁶×Rx and FB input current of 1.8-5 µA. |
| 9 | Exposed PAD | power_in | Exposed thermal pad on the underside of the package that must be soldered to the GND copper on the PCB to achieve the maximum charge current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ShangHai Consonance Elec |
| Package | SOP-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
CN3170 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
cn3170-etched.step/cn3170-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cn3170.step/cn3170.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ShangHai Consonance Elec datasheet (12 pp, sha256
61c63a3179310621, retrieved 2026-10-09, 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).